require 'csv'
require 'date'
class Standard
attr_accessor :space_multiplier_map, :standards_data
# returns the space multiplier map
# @return [Hash] space multiplier map
def define_space_multiplier
return @space_multiplier_map
end
# @!group Model
# Creates a Performance Rating Method (aka Appendix G aka LEED) baseline building model
# Method used for 90.1-2016 and onward
#
# @note Per 90.1, the Performance Rating Method "does NOT offer an alternative compliance path for minimum standard compliance."
# This means you can't use this method for code compliance to get a permit.
# @param model [OpenStudio::Model::Model] User specified OpenStudio model
# @param climate_zone [String] the climate zone
# @param hvac_building_type [String] the building type for baseline HVAC system determination (90.1-2016 and onward)
# @param wwr_building_type [String] the building type for baseline WWR determination (90.1-2016 and onward)
# @param swh_building_type [String] the building type for baseline SWH determination (90.1-2016 and onward)
# @param output_dir [String] the directory where the PRM generations will be performed
# @param debug [Boolean] If true, will report out more detailed debugging output
# @return [Boolean] returns true if successful, false if not
def model_create_prm_stable_baseline_building(model, climate_zone, hvac_building_type, wwr_building_type, swh_building_type, output_dir = Dir.pwd, unmet_load_hours_check = true, debug = false)
model_create_prm_any_baseline_building(model, '', climate_zone, hvac_building_type, wwr_building_type, swh_building_type, true, true, false, output_dir, true, unmet_load_hours_check, debug)
end
# Creates a Performance Rating Method (aka Appendix G aka LEED) baseline building model
# Method used for 90.1-2013 and prior
# @param model [OpenStudio::Model::Model] User specified OpenStudio model
# @param building_type [String] the building type
# @param climate_zone [String] the climate zone
# @param custom [String] the custom logic that will be applied during baseline creation. Valid choices are 'Xcel Energy CO EDA' or '90.1-2007 with addenda dn'.
# If nothing is specified, no custom logic will be applied; the process will follow the template logic explicitly.
# @param sizing_run_dir [String] the directory where the sizing runs will be performed
# @param debug [Boolean] if true, will report out more detailed debugging output
def model_create_prm_baseline_building(model, building_type, climate_zone, custom = nil, sizing_run_dir = Dir.pwd, debug = false)
model_create_prm_any_baseline_building(model, building_type, climate_zone, 'All others', 'All others', 'All others', false, false, custom, sizing_run_dir, false, false, debug)
end
# Creates a Performance Rating Method (aka 90.1-Appendix G) baseline building model
# based on the inputs currently in the user model.
#
# @note Per 90.1, the Performance Rating Method "does NOT offer an alternative compliance path for minimum standard compliance."
# This means you can't use this method for code compliance to get a permit.
# @param user_model [OpenStudio::Model::Model] User specified OpenStudio model
# @param building_type [String] the building type
# @param climate_zone [String] the climate zone
# @param hvac_building_type [String] the building type for baseline HVAC system determination (90.1-2016 and onward)
# @param wwr_building_type [String] the building type for baseline WWR determination (90.1-2016 and onward)
# @param swh_building_type [String] the building type for baseline SWH determination (90.1-2016 and onward)
# @param model_deep_copy [Boolean] indicate if the baseline model is created based on a deep copy of the user specified model
# @param custom [String] the custom logic that will be applied during baseline creation. Valid choices are 'Xcel Energy CO EDA' or '90.1-2007 with addenda dn'.
# If nothing is specified, no custom logic will be applied; the process will follow the template logic explicitly.
# @param sizing_run_dir [String] the directory where the sizing runs will be performed
# @param run_all_orients [Boolean] indicate weather a baseline model should be created for all 4 orientations: same as user model, +90 deg, +180 deg, +270 deg
# @param debug [Boolean] If true, will report out more detailed debugging output
# @return [Boolean] returns true if successful, false if not
def model_create_prm_any_baseline_building(user_model, building_type, climate_zone, hvac_building_type = 'All others', wwr_building_type = 'All others', swh_building_type = 'All others', model_deep_copy = false, create_proposed_model = false, custom = nil, sizing_run_dir = Dir.pwd, run_all_orients = false, unmet_load_hours_check = true, debug = false)
# User data process
# bldg_type_hvac_zone_hash could be an empty hash if all zones in the models are unconditioned
# TODO - move this portion to the top of the function
bldg_type_hvac_zone_hash = {}
handle_user_input_data(user_model, climate_zone, sizing_run_dir, hvac_building_type, wwr_building_type, swh_building_type, bldg_type_hvac_zone_hash)
# enforce the user model to be a non-leap year, defaulting to 2009 if the model year is a leap year
if user_model.yearDescription.is_initialized
year_description = user_model.yearDescription.get
if year_description.isLeapYear
OpenStudio.logFree(OpenStudio::Warn, 'prm.log',
"The user model year #{year_description.assumedYear} is a leap year. Changing to 2009, a non-leap year, as required by PRM guidelines.")
year_description.setCalendarYear(2009)
end
end
if create_proposed_model
# Perform a user model design day run only to make sure
# that the user model is valid, i.e. can run without major
# errors
if !model_run_sizing_run(user_model, "#{sizing_run_dir}/USER-SR")
OpenStudio.logFree(OpenStudio::Warn, 'prm.log',
"The user model is not a valid OpenStudio model. Baseline and proposed model(s) won't be created.")
prm_raise(false,
sizing_run_dir,
"The user model is not a valid OpenStudio model. Baseline and proposed model(s) won't be created.")
end
# Check if proposed HVAC system is autosized
if model_is_hvac_autosized(user_model)
OpenStudio.logFree(OpenStudio::Warn, 'prm.log',
"The user model's HVAC system is partly autosized.")
end
# Generate proposed model from the user-provided model
proposed_model = model_create_prm_proposed_building(user_model)
end
# Check proposed model unmet load hours
if unmet_load_hours_check
# Run user model; need annual simulation to get unmet load hours
if model_run_simulation_and_log_errors(proposed_model, run_dir = "#{sizing_run_dir}/PROP")
umlh = OpenstudioStandards::SqlFile.model_get_annual_occupied_unmet_hours(proposed_model)
if umlh > 300
OpenStudio.logFree(OpenStudio::Warn, 'prm.log',
"Proposed model unmet load hours (#{umlh}) exceed 300. Baseline model(s) won't be created.")
prm_raise(false,
sizing_run_dir,
"Proposed model unmet load hours exceed 300. Baseline model(s) won't be created.")
end
else
OpenStudio.logFree(OpenStudio::Error, 'prm.log',
'Simulation failed. Check the model to make sure no severe errors.')
prm_raise(false,
sizing_run_dir,
'Simulation on proposed model failed. Baseline generation is stopped.')
end
end
if create_proposed_model
# Make the run directory if it doesn't exist
FileUtils.mkdir_p(sizing_run_dir)
# Save proposed model
proposed_model.save(OpenStudio::Path.new("#{sizing_run_dir}/proposed_final.osm"), true)
forward_translator = OpenStudio::EnergyPlus::ForwardTranslator.new
idf = forward_translator.translateModel(proposed_model)
idf_path = OpenStudio::Path.new("#{sizing_run_dir}/proposed_final.idf")
idf.save(idf_path, true)
end
# Define different orientation from original orientation
# for each individual baseline models
# Need to run proposed model sizing simulation if no sql data is available
degs_from_org = run_all_orientations(run_all_orients, user_model) ? [0, 90, 180, 270] : [0]
# Create baseline model for each orientation
degs_from_org.each do |degs|
# New baseline model:
# Starting point is the original proposed model
# Create a deep copy of the user model if requested
model = model_deep_copy ? BTAP::FileIO.deep_copy(user_model) : user_model
model.getBuilding.setName("#{template}-#{building_type}-#{climate_zone} PRM baseline created: #{Time.new}")
# Rotate building if requested,
# Site shading isn't rotated
model_rotate(model, degs) unless degs == 0
# Perform a sizing run of the proposed model.
#
# Among others, one of the goal is to get individual
# space load to determine each space's conditioning
# type: conditioned, unconditioned, semiheated.
if model_create_prm_baseline_building_requires_proposed_model_sizing_run(model)
# Set up some special reports to be used for baseline system selection later
# Zone return air flows
node_list = []
var_name = 'System Node Standard Density Volume Flow Rate'
frequency = 'hourly'
model.getThermalZones.each do |zone|
port_list = zone.returnPortList
port_list_objects = port_list.modelObjects
port_list_objects.each do |node|
node_name = node.nameString
node_list << node_name
output = OpenStudio::Model::OutputVariable.new(var_name, model)
output.setKeyValue(node_name)
output.setReportingFrequency(frequency)
end
end
# air loop relief air flows
var_name = 'System Node Standard Density Volume Flow Rate'
frequency = 'hourly'
model.getAirLoopHVACs.sort.each do |air_loop_hvac|
relief_node = air_loop_hvac.reliefAirNode.get
output = OpenStudio::Model::OutputVariable.new(var_name, model)
output.setKeyValue(relief_node.nameString)
output.setReportingFrequency(frequency)
end
# Run the sizing run
if model_run_sizing_run(model, "#{sizing_run_dir}/SR_PROP#{degs}") == false
return false
end
# Set baseline model space conditioning category based on proposed model
model.getSpaces.each do |space|
# Get conditioning category at the space level
space_conditioning_category = space_conditioning_category(space)
# Set space conditioning category
space.additionalProperties.setFeature('space_conditioning_category', space_conditioning_category)
end
# The following should be done after a sizing run of the proposed model
# because the proposed model zone design air flow is needed
model_identify_return_air_type(model)
end
# Remove external shading devices
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', '*** Removing External Shading Devices ***')
model_remove_external_shading_devices(model)
# Reduce the WWR and SRR, if necessary
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', '*** Adjusting Window and Skylight Ratios ***')
success, wwr_info = model_apply_prm_baseline_window_to_wall_ratio(model, climate_zone, wwr_building_type: wwr_building_type)
model_apply_prm_baseline_skylight_to_roof_ratio(model)
# Assign building stories to spaces in the building where stories are not yet assigned.
OpenstudioStandards::Geometry.model_assign_spaces_to_building_stories(model)
# Modify the internal loads in each space type, keeping user-defined schedules.
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', '*** Changing Lighting Loads ***')
model.getSpaceTypes.sort.each do |space_type|
set_people = false
set_lights = true
set_electric_equipment = false
set_gas_equipment = false
set_ventilation = false
set_infiltration = false
# For PRM, it only applies lights for now.
space_type_apply_internal_loads(space_type, set_people, set_lights, set_electric_equipment, set_gas_equipment, set_ventilation, set_infiltration)
end
# Modify the lighting schedule to handle lighting occupancy sensors
# Modify the upper limit value of fractional schedule to avoid the fatal error caused by schedule value higher than 1
space_type_light_sch_change(model)
# Modify electric equipment computer room schedule
model.getSpaces.sort.each do |space|
space_add_prm_computer_room_equipment_schedule(space)
end
model_apply_baseline_exterior_lighting(model)
# Modify the elevator motor peak power
model_add_prm_elevators(model)
# Calculate infiltration as per 90.1 PRM rules
model_apply_standard_infiltration(model)
# Apply user outdoor air specs as per 90.1 PRM rules exceptions
model_apply_userdata_outdoor_air(model)
# If any of the lights are missing schedules, assign an always-off schedule to those lights.
# This is assumed to be the user's intent in the proposed model.
model.getLightss.sort.each do |lights|
if lights.schedule.empty?
lights.setSchedule(model.alwaysOffDiscreteSchedule)
end
end
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', '*** Adding Daylighting Controls ***')
# Run a sizing run to calculate VLT for layer-by-layer windows.
if model_create_prm_baseline_building_requires_vlt_sizing_run(model)
if model_run_sizing_run(model, "#{sizing_run_dir}/SRVLT") == false
return false
end
end
# Add or remove daylighting controls to each space
# Add daylighting controls for 90.1-2013 and prior
# Remove daylighting control for 90.1-PRM-2019 and onward
model.getSpaces.sort.each do |space|
space_set_baseline_daylighting_controls(space, true, false)
end
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', '*** Applying Baseline Constructions ***')
# Modify some of the construction types as necessary
model_apply_prm_construction_types(model)
# Get the groups of zones that define the baseline HVAC systems for later use.
# This must be done before removing the HVAC systems because it requires knowledge of proposed HVAC fuels.
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', '*** Grouping Zones by Fuel Type and Occupancy Type ***')
zone_fan_scheds = nil
sys_groups = model_prm_baseline_system_groups(model, custom, bldg_type_hvac_zone_hash)
# Also get hash of zoneName:boolean to record which zones have district heating, if any
district_heat_zones = model_get_district_heating_zones(model)
# Store occupancy and fan operation schedules for each zone before deleting HVAC objects
zone_fan_scheds = get_fan_schedule_for_each_zone(model)
# Set the construction properties of all the surfaces in the model
model_apply_constructions(model, climate_zone, wwr_building_type, wwr_info)
# Update ground temperature profile (for F/C-factor construction objects)
model_update_ground_temperature_profile(model, climate_zone)
# Identify non-mechanically cooled systems if necessary
model_identify_non_mechanically_cooled_systems(model)
# Get supply, return, relief fan power for each air loop
if model_get_fan_power_breakdown
model.getAirLoopHVACs.sort.each do |air_loop|
supply_fan_w = air_loop_hvac_get_supply_fan_power(air_loop)
return_fan_w = air_loop_hvac_get_return_fan_power(air_loop)
relief_fan_w = air_loop_hvac_get_relief_fan_power(air_loop)
# Save fan power at the zone to determining
# baseline fan power
air_loop.thermalZones.sort.each do |zone|
zone.additionalProperties.setFeature('supply_fan_w', supply_fan_w.to_f)
zone.additionalProperties.setFeature('return_fan_w', return_fan_w.to_f)
zone.additionalProperties.setFeature('relief_fan_w', relief_fan_w.to_f)
end
end
end
# Compute and marke DCV related information before deleting proposed model HVAC systems
model_evaluate_dcv_requirements(model)
# Remove all HVAC from model, excluding service water heating
model_remove_prm_hvac(model)
# Remove all EMS objects from the model
model_remove_prm_ems_objects(model)
# Modify the service water heating loops per the baseline rules
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', '*** Cleaning up Service Water Heating Loops ***')
model_apply_baseline_swh_loops(model, building_type)
# Determine the baseline HVAC system type for each of the groups of zones and add that system type.
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', '*** Adding Baseline HVAC Systems ***')
air_loop_name_array = []
sys_groups.each do |sys_group|
# Determine the primary baseline system type
system_type = model_prm_baseline_system_type(model, climate_zone, sys_group, custom, hvac_building_type, district_heat_zones)
sys_group['zones'].sort.each_slice(5) do |zone_list|
zone_names = []
zone_list.each do |zone|
zone_names << zone.name.get.to_s
end
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "--- #{zone_names.join(', ')}")
end
# Add system type reference to zone
sys_group['zones'].sort.each do |zone|
zone.additionalProperties.setFeature('baseline_system_type', system_type[0])
end
# Add the system type for these zones
model_add_prm_baseline_system(model,
system_type[0],
system_type[1],
system_type[2],
system_type[3],
sys_group['zones'],
zone_fan_scheds)
model.getAirLoopHVACs.each do |air_loop|
air_loop_name = air_loop.name.get
unless air_loop_name_array.include?(air_loop_name)
air_loop.additionalProperties.setFeature('zone_group_type', sys_group['zone_group_type'] || 'None')
air_loop.additionalProperties.setFeature('sys_group_occ', sys_group['occ'] || 'None')
air_loop_name_array << air_loop_name
end
# Determine return air type
plenum, return_air_type = model_determine_baseline_return_air_type(model, system_type[0], air_loop.thermalZones)
air_loop.thermalZones.sort.each do |zone|
# Set up return air plenum
zone.setReturnPlenum(model.getThermalZoneByName(plenum).get) if return_air_type == 'return_plenum'
end
end
end
# Add system type reference to all air loops
model.getAirLoopHVACs.sort.each do |air_loop|
if air_loop.thermalZones[0].additionalProperties.hasFeature('baseline_system_type')
sys_type = air_loop.thermalZones[0].additionalProperties.getFeatureAsString('baseline_system_type').get
air_loop.additionalProperties.setFeature('baseline_system_type', sys_type)
else
OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', "Thermal zone #{air_loop.thermalZones[0].name} is not associated to a particular system type.")
end
end
# Set the zone sizing SAT for each zone in the model
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', '*** Applying Baseline HVAC System Sizing Settings ***')
model.getThermalZones.each do |zone|
thermal_zone_apply_prm_baseline_supply_temperatures(zone)
end
# Set the system sizing properties based on the zone sizing information
model.getAirLoopHVACs.each do |air_loop|
air_loop_hvac_apply_prm_sizing_temperatures(air_loop)
end
# Set internal load sizing run schedules
model_apply_prm_baseline_sizing_schedule(model)
# Set the heating and cooling sizing parameters
model_apply_prm_sizing_parameters(model)
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', '*** Applying Baseline HVAC System Controls ***')
# SAT reset, economizers
model.getAirLoopHVACs.sort.each do |air_loop|
air_loop_hvac_apply_prm_baseline_controls(air_loop, climate_zone)
end
# Apply the baseline system water loop temperature reset control
model.getPlantLoops.sort.each do |plant_loop|
# Skip the SWH loops
next if plant_loop_swh_loop?(plant_loop)
plant_loop_apply_prm_baseline_temperatures(plant_loop)
end
# Run sizing run with the HVAC equipment
if model_run_sizing_run(model, "#{sizing_run_dir}/SR1") == false
return false
end
# Apply the minimum damper positions, assuming no DDC control of VAV terminals
model.getAirLoopHVACs.sort.each do |air_loop|
air_loop_hvac_apply_minimum_vav_damper_positions(air_loop, false)
end
# If there are any multi-zone systems, reset damper positions to achieve a 60% ventilation effectiveness minimum for the system
# following the ventilation rate procedure from 62.1
model_apply_multizone_vav_outdoor_air_sizing(model)
# Set the baseline fan power for all air loops
model.getAirLoopHVACs.sort.each do |air_loop|
air_loop_hvac_apply_prm_baseline_fan_power(air_loop)
end
# Set the baseline fan power for all zone HVAC
model.getZoneHVACComponents.sort.each do |zone_hvac|
zone_hvac_component_apply_prm_baseline_fan_power(zone_hvac)
end
# Set the baseline number of boilers and chillers
model.getPlantLoops.sort.each do |plant_loop|
# Skip the SWH loops
next if plant_loop_swh_loop?(plant_loop)
plant_loop_apply_prm_number_of_boilers(plant_loop)
plant_loop_apply_prm_number_of_chillers(plant_loop)
end
# Set the baseline number of cooling towers
# Must be done after all chillers are added
model.getPlantLoops.sort.each do |plant_loop|
# Skip the SWH loops
next if plant_loop_swh_loop?(plant_loop)
plant_loop_apply_prm_number_of_cooling_towers(plant_loop)
end
# Run sizing run with the new chillers, boilers, and cooling towers to determine capacities
if model_run_sizing_run(model, "#{sizing_run_dir}/SR2") == false
return false
end
# Set the pumping control strategy and power
# Must be done after sizing components
model.getPlantLoops.sort.each do |plant_loop|
# Skip the SWH loops
next if plant_loop_swh_loop?(plant_loop)
plant_loop_apply_prm_baseline_pump_power(plant_loop)
plant_loop_apply_prm_baseline_pumping_type(plant_loop)
end
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', '*** Applying Prescriptive HVAC Controls and Equipment Efficiencies ***')
# Apply the HVAC efficiency standard
model_apply_hvac_efficiency_standard(model, climate_zone)
# Set baseline DCV system
model_set_baseline_demand_control_ventilation(model, climate_zone)
# Final sizing run and adjustements to values that need refinement
model_refine_size_dependent_values(model, sizing_run_dir)
# Fix EMS references.
# Temporary workaround for OS issue #2598
model_temp_fix_ems_references(model)
# Delete all the unused resource objects
model_remove_unused_resource_objects(model)
# Add reporting tolerances
model_add_reporting_tolerances(model)
# @todo: turn off self shading
# Set Solar Distribution to MinimalShadowing... problem is when you also have detached shading such as surrounding buildings etc
# It won't be taken into account, while it should: only self shading from the building itself should be turned off but to my knowledge there isn't a way to do this in E+
model_status = degs > 0 ? "baseline_final_#{degs}" : 'baseline_final'
model.save(OpenStudio::Path.new("#{sizing_run_dir}/#{model_status}.osm"), true)
# Translate to IDF and save for debugging
forward_translator = OpenStudio::EnergyPlus::ForwardTranslator.new
idf = forward_translator.translateModel(model)
idf_path = OpenStudio::Path.new("#{sizing_run_dir}/#{model_status}.idf")
idf.save(idf_path, true)
# Check unmet load hours
if unmet_load_hours_check
nb_adjustments = 0
loop do
# Loop break condition: Limit the number of zone sizing factor adjustment to 3
unless nb_adjustments < 3
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "After 3 rounds of zone sizing factor adjustments the unmet load hours for the baseline model (#{degs} degree of rotation) still exceed 300 hours. Please open an issue on GitHub (https://github.com/NREL/openstudio-standards/issues) and share your user model with the developers.")
break
end
# Close the previous SQL session if open to prevent EnergyPlus from overloading the same session
sql = model.sqlFile.get
if sql.connectionOpen
sql.close
end
# simulation failure, raise the exception
unless model_run_simulation_and_log_errors(model, "#{sizing_run_dir}/final#{degs}")
raise('OpenStudio simulation failed.')
end
# If UMLH are greater than the threshold allowed by Appendix G,
# increase zone air flow and load as per the recommendation in
# the PRM-RM; Note that the PRM-RM only suggest to increase
# air zone air flow, but the zone sizing factor in EnergyPlus
# increase both air flow and load.
umlh = OpenstudioStandards::SqlFile.model_get_annual_occupied_unmet_hours(proposed_model)
if umlh > 300
model.getThermalZones.each do |thermal_zone|
# Cooling adjustments
clg_umlh = OpenstudioStandards::SqlFile.thermal_zone_get_annual_occupied_unmet_cooling_hours(thermal_zone)
if clg_umlh > 50
sizing_factor = 1.0
if thermal_zone.sizingZone.zoneCoolingSizingFactor.is_initialized
sizing_factor = thermal_zone.sizingZone.zoneCoolingSizingFactor.get
end
# Make adjustment to zone cooling sizing factor
# Do not adjust factors greater or equal to 2
clg_umlh > 150 ? sizing_factor = [2.0, sizing_factor * 1.1].min : sizing_factor = [2.0, sizing_factor * 1.05].min
thermal_zone.sizingZone.setZoneCoolingSizingFactor(sizing_factor)
end
# Heating adjustments
# Reset sizing factor
htg_umlh = OpenstudioStandards::SqlFile.thermal_zone_get_annual_occupied_unmet_heating_hours(thermal_zone)
if htg_umlh > 50
sizing_factor = 1.0
if thermal_zone.sizingZone.zoneHeatingSizingFactor.is_initialized
# Get zone heating sizing factor
sizing_factor = thermal_zone.sizingZone.zoneHeatingSizingFactor.get
end
# Make adjustment to zone heating sizing factor
# Do not adjust factors greater or equal to 2
htg_umlh > 150 ? sizing_factor = [2.0, sizing_factor * 1.1].min : sizing_factor = [2.0, sizing_factor * 1.05].min
thermal_zone.sizingZone.setZoneHeatingSizingFactor(sizing_factor)
end
end
end
nb_adjustments += 1
end
end
end
if debug
generate_baseline_log(sizing_run_dir)
end
return true
end
# Creates a Performance Rating Method (aka 90.1-Appendix G) proposed building model
# based on the inputs currently in the user model.
#
# @param user_model [OpenStudio::model::Model] User specified OpenStudio model
# @return [OpenStudio::model::Model] returns the proposed building model corresponding to a user model
def model_create_prm_proposed_building(user_model)
# Create copy of the user model
proposed_model = BTAP::FileIO.deep_copy(user_model)
# Get user building level data
building_name = proposed_model.building.get.name.get
user_buildings = @standards_data.key?('userdata_building') ? @standards_data['userdata_building'] : nil
# If needed, modify user model infiltration
if user_buildings
user_building_index = user_buildings.index { |user_building| building_name.include? user_building['name'] }
# TODO: Move the user data processing section
infiltration_modeled_from_field_verification_results = 'false'
if user_building_index && user_buildings[user_building_index]['infiltration_modeled_from_field_verification_results']
infiltration_modeled_from_field_verification_results = user_buildings[user_building_index]['infiltration_modeled_from_field_verification_results'].to_s.downcase
end
# Calculate total infiltration flow rate per envelope area
building_envelope_area_m2 = model_building_envelope_area(proposed_model)
curr_tot_infil_m3_per_s_per_envelope_area = model_current_building_envelope_infiltration_at_75pa(proposed_model, building_envelope_area_m2)
curr_tot_infil_cfm_per_envelope_area = OpenStudio.convert(curr_tot_infil_m3_per_s_per_envelope_area, 'm^3/s*m^2', 'cfm/ft^2').get
# Warn users if the infiltration modeling in the user/proposed model is not based on field verification
# If not modeled based on field verification, it should be modeled as 0.6 cfm/ft2
unless infiltration_modeled_from_field_verification_results.casecmp('true')
if curr_tot_infil_cfm_per_envelope_area < 0.6
OpenStudio.logFree(OpenStudio::Info, 'prm.log', "The user model's I_75Pa is estimated to be #{curr_tot_infil_cfm_per_envelope_area} m3/s per m2 of total building envelope")
end
end
# Modify model to follow the PRM infiltration modeling method
model_apply_standard_infiltration(proposed_model, curr_tot_infil_cfm_per_envelope_area)
end
# If needed, remove all non-adiabatic pipes of SWH loops
proposed_model.getPlantLoops.sort.each do |plant_loop|
# Skip non service water heating loops
next unless plant_loop_swh_loop?(plant_loop)
plant_loop_adiabatic_pipes_only(plant_loop)
end
# TODO: Once data refactoring has been completed lookup values from the database;
# For now, hard-code LPD for selected spaces. Current Standards Space Type
# of OS:SpaceType is the PRM interior lighting space type. These values are
# from Table 9.6.1 as required by Section G3.1.6.e.
proposed_lpd_residential_spaces = {
'dormitory - living quarters' => 0.5, # "primary_space_type": "Dormitory - Living Quarters",
'apartment - hardwired' => 0.6, # "primary_space_type": "Dwelling Unit"
'guest room' => 0.41 # "primary_space_type": "Guest Room",
}
# Make proposed model space related adjustments
proposed_model.getSpaces.each do |space|
# If needed, modify computer equipment schedule
# Section G3.1.3.16
space_add_prm_computer_room_equipment_schedule(space)
# If needed, modify lighting power denstities in residential spaces/zones
# Section G3.1.6.e
standard_space_type = prm_get_optional_handler(space, @sizing_run_dir, 'spaceType', 'standardsSpaceType').downcase
user_spaces = @standards_data.key?('userdata_space') ? @standards_data['userdata_space'] : nil
if ['dormitory - living quarters', 'apartment - hardwired', 'guest room'].include?(standard_space_type)
user_spaces.each do |user_data|
if user_data['name'].to_s == space.name.to_s && user_data['has_residential_exception'].to_s.downcase != 'yes'
# Get LPDs
lpd_w_per_m2 = space.lightingPowerPerFloorArea
ref_space_lpd_per_ft2 = proposed_lpd_residential_spaces[standard_space_type]
ref_space_lpd_per_m2 = OpenStudio.convert(ref_space_lpd_per_ft2, 'W/ft^2', 'W/m^2').get
# Set new LPD
space.setLightingPowerPerFloorArea([lpd_w_per_m2, ref_space_lpd_per_m2].max)
end
end
end
end
return proposed_model
end
# Determine whether or not the HVAC system in a model is autosized
#
# As it is not realistic expectation to have all autosizable
# fields hard input, the method relies on autosizable field
# of prime movers (fans, pumps) and heating/cooling devices
# in the models (boilers, chillers, coils)
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Boolean] returns true if the HVAC system is likely autosized, false otherwise
def model_is_hvac_autosized(model)
is_hvac_autosized = false
model.modelObjects.each do |obj|
obj_type = obj.iddObjectType.valueName.to_s.downcase
# Check if the object needs to be checked for autosizing
obj_to_be_checked_for_autosizing = false
if obj_type.include?('chiller') || obj_type.include?('boiler') || obj_type.include?('coil') || obj_type.include?('fan') || obj_type.include?('pump') || obj_type.include?('waterheater')
if !obj_type.include?('controller')
obj_to_be_checked_for_autosizing = true
end
end
# Check for autosizing
if obj_to_be_checked_for_autosizing
casted_obj = model_cast_model_object(obj)
next if casted_obj.nil?
casted_obj.methods.each do |method|
if method.to_s.include?('is') && method.to_s.include?('Autosized')
if casted_obj.public_send(method) == true
is_hvac_autosized = true
OpenStudio.logFree(OpenStudio::Info, 'prm.log', "The #{method.to_s.sub('is', '').sub('Autosized', '').sub(':', '')} field of the #{obj_type} named #{casted_obj.name} is autosized. It should be hard sized.")
end
end
end
end
end
return is_hvac_autosized
end
# Determine if there needs to be a sizing run after constructions are added
# so that EnergyPlus can calculate the VLTs of layer-by-layer glazing constructions.
# These VLT values are needed for the daylighting controls logic for some templates.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Boolean] returns true if required, false if not
def model_create_prm_baseline_building_requires_vlt_sizing_run(model)
return false # Not required for most templates
end
# Determine if there is a need for a proposed model sizing run.
# A typical application of such sizing run is to determine space
# conditioning type.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
#
# @return [Boolean] Returns true if a sizing run is required
def model_create_prm_baseline_building_requires_proposed_model_sizing_run(model)
return false
end
# Add design day schedule objects for space loads,
# not used for 2013 and earlier
# @author Xuechen (Jerry) Lei, PNNL
# @param model [OpenStudio::Model::Model] OpenStudio model object
#
def model_apply_prm_baseline_sizing_schedule(model)
return true
end
# Categorize zones by occupancy type and fuel type, where the types depend on the standard.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param custom [String] custom fuel type
# @param applicable_zones [list of zone objects]
# @return [Array<Hash>] an array of hashes, one for each zone,
# with the keys 'zone', 'type' (occ type), 'fuel', and 'area'
def model_zones_with_occ_and_fuel_type(model, custom, applicable_zones = nil)
zones = []
model.getThermalZones.sort.each do |zone|
# Skip plenums
if OpenstudioStandards::ThermalZone.thermal_zone_plenum?(zone)
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Zone #{zone.name} is a plenum. It will not be assigned a baseline system.")
next
end
if !applicable_zones.nil?
# This is only used for the stable baseline (2016 and later)
if !applicable_zones.include?(zone)
# This zone is not part of the current hvac_building_type
next
end
end
# Skip unconditioned zones
heated = OpenstudioStandards::ThermalZone.thermal_zone_heated?(zone)
cooled = OpenstudioStandards::ThermalZone.thermal_zone_cooled?(zone)
if !heated && !cooled
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Zone #{zone.name} is unconditioned. It will not be assigned a baseline system.")
next
end
zn_hash = {}
# The zone object
zn_hash['zone'] = zone
# Floor area
zn_hash['area'] = zone.floorArea
# Occupancy type
zn_hash['occ'] = thermal_zone_occupancy_type(zone)
# Building type
zn_hash['bldg_type'] = OpenstudioStandards::ThermalZone.thermal_zone_get_building_type(zone)
# Fuel type
# for 2013 and prior, baseline fuel = proposed fuel
# for 2016 and later, use fuel to identify zones with district energy
zn_hash['fuel'] = thermal_zone_get_zone_fuels_for_occ_and_fuel_type(zone)
zones << zn_hash
end
return zones
end
# Determine the dominant and exceptional areas of the building based on fuel types and occupancy types.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param custom [String] custom fuel type
# @return [Array<Hash>] an array of hashes of area information,
# with keys area_ft2, type, fuel, and zones (an array of zones)
def model_prm_baseline_system_groups(model, custom, bldg_type_hvac_zone_hash = nil)
# Define the minimum area for the
# exception that allows a different
# system type in part of the building.
if custom == 'Xcel Energy CO EDA'
# Customization - Xcel EDA Program Manual 2014
# 3.2.1 Mechanical System Selection ii
exception_min_area_ft2 = 5000
OpenStudio.logFree(OpenStudio::Info, 'openstudio.Standards.Model', "Customization; per Xcel EDA Program Manual 2014 3.2.1 Mechanical System Selection ii, minimum area for non-predominant conditions reduced to #{exception_min_area_ft2} ft2.")
else
exception_min_area_ft2 = 20_000
end
# Get occupancy type, fuel type, and area information for all zones,
# excluding unconditioned zones.
# Occupancy types are:
# Residential
# NonResidential
# (and for 90.1-2013)
# PublicAssembly
# Retail
# Fuel types are:
# fossil
# electric
# (and for Xcel Energy CO EDA)
# fossilandelectric
zones = model_zones_with_occ_and_fuel_type(model, custom)
# Ensure that there is at least one conditioned zone
if zones.empty?
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', 'The building does not appear to have any conditioned zones. Make sure zones have thermostat with appropriate heating and cooling setpoint schedules.')
return []
end
# Group the zones by occupancy type
type_to_area = Hash.new { 0.0 }
zones_grouped_by_occ = zones.group_by { |z| z['occ'] }
# Determine the dominant occupancy type by area
zones_grouped_by_occ.each do |occ_type, zns|
zns.each do |zn|
type_to_area[occ_type] += zn['area']
end
end
dom_occ = type_to_area.sort_by { |k, v| v }.reverse[0][0]
# Get the dominant occupancy type group
dom_occ_group = zones_grouped_by_occ[dom_occ]
# Check the non-dominant occupancy type groups to see if they are big enough to trigger the occupancy exception.
# If they are, leave the group standing alone.
# If they are not, add the zones in that group back to the dominant occupancy type group.
occ_groups = []
zones_grouped_by_occ.each do |occ_type, zns|
# Skip the dominant occupancy type
next if occ_type == dom_occ
# Add up the floor area of the group
area_m2 = 0
zns.each do |zn|
area_m2 += zn['area']
end
area_ft2 = OpenStudio.convert(area_m2, 'm^2', 'ft^2').get
# If the non-dominant group is big enough, preserve that group.
if area_ft2 > exception_min_area_ft2
occ_groups << [occ_type, zns]
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "The portion of the building with an occupancy type of #{occ_type} is bigger than the minimum exception area of #{exception_min_area_ft2.round} ft2. It will be assigned a separate HVAC system type.")
# Otherwise, add the zones back to the dominant group.
else
dom_occ_group += zns
end
end
# Add the dominant occupancy group to the list
occ_groups << [dom_occ, dom_occ_group]
# Inside of each remaining occupancy group, determine the dominant fuel type.
# This determination should only include zones that are part of the dominant area type inside of this group.
occ_and_fuel_groups = []
occ_groups.each do |occ_type, zns|
# Separate the zones that are part of the dominant occ type
dom_occ_zns = []
nondom_occ_zns = []
zns.each do |zn|
if zn['occ'] == occ_type
dom_occ_zns << zn
else
nondom_occ_zns << zn
end
end
# Determine the dominant fuel type from the subset of the dominant area type zones
fuel_to_area = Hash.new { 0.0 }
zones_grouped_by_fuel = dom_occ_zns.group_by { |z| z['fuel'] }
zones_grouped_by_fuel.each do |fuel, zns_by_fuel|
zns_by_fuel.each do |zn|
fuel_to_area[fuel] += zn['area']
end
end
sorted_by_area = fuel_to_area.sort_by { |k, v| v }.reverse
dom_fuel = sorted_by_area[0][0]
# Don't allow unconditioned to be the dominant fuel, go to the next biggest
if dom_fuel == 'unconditioned'
if sorted_by_area.size > 1
dom_fuel = sorted_by_area[1][0]
else
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', 'The fuel type was not able to be determined for any zones in this model. Run with debug messages enabled to see possible reasons.')
return []
end
end
# Get the dominant fuel type group
dom_fuel_group = {}
dom_fuel_group['occ'] = occ_type
dom_fuel_group['fuel'] = dom_fuel
dom_fuel_group['zones'] = zones_grouped_by_fuel[dom_fuel]
# The zones that aren't part of the dominant occ type are automatically added to the dominant fuel group
dom_fuel_group['zones'] += nondom_occ_zns
# Check the non-dominant occupancy type groups to see if they are big enough to trigger the occupancy exception.
# If they are, leave the group standing alone.
# If they are not, add the zones in that group back to the dominant occupancy type group.
zones_grouped_by_fuel.each do |fuel_type, zns_by_fuel|
# Skip the dominant occupancy type
next if fuel_type == dom_fuel
# Add up the floor area of the group
area_m2 = 0
zns_by_fuel.each do |zn|
area_m2 += zn['area']
end
area_ft2 = OpenStudio.convert(area_m2, 'm^2', 'ft^2').get
# If the non-dominant group is big enough, preserve that group.
if area_ft2 > exception_min_area_ft2
group = {}
group['occ'] = occ_type
group['fuel'] = fuel_type
group['zones'] = zns_by_fuel
occ_and_fuel_groups << group
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "The portion of the building with an occupancy type of #{occ_type} and fuel type of #{fuel_type} is bigger than the minimum exception area of #{exception_min_area_ft2.round} ft2. It will be assigned a separate HVAC system type.")
# Otherwise, add the zones back to the dominant group.
else
dom_fuel_group['zones'] += zns_by_fuel
end
end
# Add the dominant occupancy group to the list
occ_and_fuel_groups << dom_fuel_group
end
# Moved heated-only zones into their own groups.
# Per the PNNL PRM RM, this must be done AFTER the dominant occ and fuel types are determined
# so that heated-only zone areas are part of the determination.
final_groups = []
occ_and_fuel_groups.each do |gp|
# Skip unconditioned groups
next if gp['fuel'] == 'unconditioned'
heated_only_zones = []
heated_cooled_zones = []
gp['zones'].each do |zn|
if OpenstudioStandards::ThermalZone.thermal_zone_heated?(zn['zone']) && !OpenstudioStandards::ThermalZone.thermal_zone_cooled?(zn['zone'])
heated_only_zones << zn
else
heated_cooled_zones << zn
end
end
gp['zones'] = heated_cooled_zones
# Add the group (less unheated zones) to the final list
final_groups << gp
# If there are any heated-only zones, create a new group for them.
unless heated_only_zones.empty?
htd_only_group = {}
htd_only_group['occ'] = 'heatedonly'
htd_only_group['fuel'] = gp['fuel']
htd_only_group['zones'] = heated_only_zones
final_groups << htd_only_group
end
end
# Calculate the area for each of the final groups and replace the zone hashes with the zone objects
final_groups.each do |gp|
area_m2 = 0.0
gp_zns = []
gp['zones'].each do |zn|
area_m2 += zn['area']
gp_zns << zn['zone']
end
area_ft2 = OpenStudio.convert(area_m2, 'm^2', 'ft^2').get
gp['area_ft2'] = area_ft2
gp['zones'] = gp_zns
end
# @todo Remove the secondary zones before
# determining the area used to pick the HVAC system, per PNNL PRM RM
# If there is any district heating or district cooling in the proposed building, the heating and cooling
# fuels in the entire baseline building are changed for the purposes of HVAC system assignment
all_htg_fuels = []
all_clg_fuels = []
# error if HVACComponent heating fuels method is not available
if model.version < OpenStudio::VersionString.new('3.6.0')
OpenStudio.logFree(OpenStudio::Error, 'openstudio.Standards.Model', 'Required HVACComponent methods .heatingFuelTypes and .coolingFuelTypes are not available in pre-OpenStudio 3.6.0 versions. Use a more recent version of OpenStudio.')
end
model.getThermalZones.sort.each do |zone|
all_htg_fuels += zone.heatingFuelTypes.map(&:valueName)
all_clg_fuels += zone.coolingFuelTypes.map(&:valueName)
end
purchased_heating = false
purchased_cooling = false
# Purchased heating
if all_htg_fuels.include?('DistrictHeating') || all_htg_fuels.include?('DistrictHeatingWater') || all_htg_fuels.include?('DistrictHeatingSteam')
purchased_heating = true
end
# Purchased cooling
if all_clg_fuels.include?('DistrictCooling')
purchased_cooling = true
end
# Categorize
district_fuel = nil
if purchased_heating && purchased_cooling
district_fuel = 'purchasedheatandcooling'
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', 'The proposed model included purchased heating and cooling. All baseline building system selection will be based on this information.')
elsif purchased_heating && !purchased_cooling
district_fuel = 'purchasedheat'
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', 'The proposed model included purchased heating. All baseline building system selection will be based on this information.')
elsif !purchased_heating && purchased_cooling
district_fuel = 'purchasedcooling'
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', 'The proposed model included purchased cooling. All baseline building system selection will be based on this information.')
end
# Change the fuel in all final groups if district systems were found.
if district_fuel
final_groups.each do |gp|
gp['fuel'] = district_fuel
end
end
# Determine the number of stories spanned by each group and report out info.
final_groups.each do |group|
# Determine the number of stories this group spans
group['stories'] = OpenstudioStandards::Geometry.thermal_zones_get_number_of_stories_spanned(group['zones'])
# Report out the final grouping
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Final system type group: occ = #{group['occ']}, fuel = #{group['fuel']}, area = #{group['area_ft2'].round} ft2, num stories = #{group['stories']}, zones:")
group['zones'].sort.each_slice(5) do |zone_list|
zone_names = []
zone_list.each do |zone|
zone_names << zone.name.get.to_s
end
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "--- #{zone_names.join(', ')}")
end
end
return final_groups
end
# Before deleting proposed HVAC components, determine for each zone if it has district heating
# @return [Hash] Hash of boolean with zone name as key
def model_get_district_heating_zones(model)
has_district_hash = {}
model.getThermalZones.sort.each do |zone|
has_district_hash['building'] = false
# error if HVACComponent heating fuels method is not available
if model.version < OpenStudio::VersionString.new('3.6.0')
OpenStudio.logFree(OpenStudio::Error, 'openstudio.Standards.Model', 'Required HVACComponent method .heatingFuelTypes is not available in pre-OpenStudio 3.6.0 versions. Use a more recent version of OpenStudio.')
end
htg_fuels = zone.heatingFuelTypes.map(&:valueName)
if htg_fuels.include?('DistrictHeating') || htg_fuels.include?('DistrictHeatingWater') || htg_fuels.include?('DistrictHeatingSteam')
has_district_hash[zone.name] = true
has_district_hash['building'] = true
else
has_district_hash[zone.name] = false
end
end
return has_district_hash
end
# Get list of heat types across a list of zones
# @param zones [array of objects] array of zone objects
# @return [String concatenated string showing different fuel types in a group of zones
def get_group_heat_types(model, zones)
heat_list = ''
has_district_heat = false
has_fuel_heat = false
has_electric_heat = false
zones.each do |zone|
if OpenstudioStandards::ThermalZone.thermal_zone_district_heat?(zone)
has_district_heat = true
end
if OpenstudioStandards::ThermalZone.thermal_zone_fossil_heat?(zone)
has_fuel_heat = true
end
if OpenstudioStandards::ThermalZone.thermal_zone_electric_heat?(zone)
has_electric_heat = true
end
end
if has_district_heat
heat_list = 'districtheating'
end
if has_fuel_heat
heat_list += '_fuel'
end
if has_electric_heat
heat_list += '_electric'
end
return heat_list
end
# Store fan operation schedule for each zone before deleting HVAC objects
# @author Doug Maddox, PNNL
# @param model [object]
# @return [Hash] of zoneName:fan_schedule_8760
def get_fan_schedule_for_each_zone(model)
fan_sch_names = {}
# Start with air loops
model.getAirLoopHVACs.sort.each do |air_loop_hvac|
fan_schedule_8760 = []
# Check for availability managers
# Assume only AvailabilityManagerScheduled will control fan schedule
# @todo also check AvailabilityManagerScheduledOn
avail_mgrs = air_loop_hvac.availabilityManagers
# if avail_mgrs.is_initialized
if !avail_mgrs.nil?
avail_mgrs.each do |avail_mgr|
# avail_mgr = avail_mgr.get
# Check each type of AvailabilityManager
# If the current one matches, get the fan schedule
if avail_mgr.to_AvailabilityManagerScheduled.is_initialized
avail_mgr = avail_mgr.to_AvailabilityManagerScheduled.get
fan_schedule = avail_mgr.schedule
# fan_sch_translator = ScheduleTranslator.new(model, fan_schedule)
# fan_sch_ruleset = fan_sch_translator.translate
fan_schedule_8760 = OpenstudioStandards::Schedules.schedule_get_hourly_values(fan_schedule)
end
end
end
if fan_schedule_8760.empty?
# If there are no availability managers, then use the schedule in the supply fan object
# Note: testing showed that the fan object schedule is not used by OpenStudio
# Instead, get the fan schedule from the air_loop_hvac object
# fan_object = nil
# fan_object = get_fan_object_for_airloop(model, air_loop_hvac)
fan_object = 'nothing'
if fan_object.nil?
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Failed to retreive fan object for AirLoop #{air_loop_hvac.name}")
else
# fan_schedule = fan_object.availabilitySchedule
fan_schedule = air_loop_hvac.availabilitySchedule
end
fan_schedule_8760 = OpenstudioStandards::Schedules.schedule_get_hourly_values(fan_schedule)
end
# Assign this schedule to each zone on this air loop
air_loop_hvac.thermalZones.each do |zone|
fan_sch_names[zone.name.get] = fan_schedule_8760
end
end
# Handle Zone equipment
model.getThermalZones.sort.each do |zone|
if !fan_sch_names.key?(zone.name.get)
# This zone was not assigned a schedule via air loop
# Check for zone equipment fans
zone.equipment.each do |zone_equipment|
next if zone_equipment.to_FanZoneExhaust.is_initialized
# get fan schedule
fan_object = zone_hvac_get_fan_object(zone_equipment)
if !fan_object.nil?
fan_schedule = fan_object.availabilitySchedule
fan_schedule_8760 = OpenstudioStandards::Schedules.schedule_get_hourly_values(fan_schedule)
fan_sch_names[zone.name.get] = fan_schedule_8760
break
end
end
end
end
return fan_sch_names
end
# Get the supply fan object for an air loop
# @author Doug Maddox, PNNL
# @param model [object]
# @param air_loop [object]
# @return [object] supply fan of zone equipment component
def get_fan_object_for_airloop(model, air_loop)
if air_loop.supplyFan.empty?
# Check if system has unitary wrapper
air_loop.supplyComponents.each do |component|
# Get the object type, getting the internal coil
# type if inside a unitary system.
obj_type = component.iddObjectType.valueName.to_s
fan_component = nil
case obj_type
when 'OS_AirLoopHVAC_UnitaryHeatCool_VAVChangeoverBypass'
component = component.to_AirLoopHVACUnitaryHeatCoolVAVChangeoverBypass.get
fan_component = component.supplyFan.get
when 'OS_AirLoopHVAC_UnitaryHeatPump_AirToAir'
component = component.to_AirLoopHVACUnitaryHeatPumpAirToAir.get
fan_component = component.supplyFan.get
when 'OS_AirLoopHVAC_UnitaryHeatPump_AirToAir_MultiSpeed'
component = component.to_AirLoopHVACUnitaryHeatPumpAirToAirMultiSpeed.get
fan_component = component.supplyFan.get
when 'OS_AirLoopHVAC_UnitarySystem'
component = component.to_AirLoopHVACUnitarySystem.get
fan_component = component.supplyFan.get
end
if !fan_component.nil?
break
end
end
else
fan_component = air_loop.supplyFan.get
end
# Get the fan object for this fan
fan_obj_type = fan_component.iddObjectType.valueName.to_s
case fan_obj_type
when 'OS_Fan_OnOff'
fan_obj = fan_component.to_FanOnOff.get
when 'OS_Fan_ConstantVolume'
fan_obj = fan_component.to_FanConstantVolume.get
when 'OS_Fan_SystemModel'
fan_obj = fan_component.to_FanSystemModel.get
when 'OS_Fan_VariableVolume'
fan_obj = fan_component.to_FanVariableVolume.get
end
return fan_obj
end
# Determine the baseline system type given the inputs. Logic is different for different standards.
#
# 90.1-2007, 90.1-2010, 90.1-2013
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param climate_zone [String] ASHRAE climate zone, e.g. 'ASHRAE 169-2013-4A'
# @param sys_group [Hash] Hash defining a group of zones that have the same Appendix G system type
# @param custom [String] custom fuel type
# @return [String] The system type. Possibilities are PTHP, PTAC, PSZ_AC, PSZ_HP, PVAV_Reheat, PVAV_PFP_Boxes,
# VAV_Reheat, VAV_PFP_Boxes, Gas_Furnace, Electric_Furnace
# @todo add 90.1-2013 systems 11-13
def model_prm_baseline_system_type(model, climate_zone, sys_group, custom, hvac_building_type = nil, district_heat_zones = nil)
area_type = sys_group['occ']
fuel_type = sys_group['fuel']
area_ft2 = sys_group['area_ft2']
num_stories = sys_group['stories']
# [type, central_heating_fuel, zone_heating_fuel, cooling_fuel]
system_type = [nil, nil, nil, nil]
# Get the row from TableG3.1.1A
sys_num = model_prm_baseline_system_number(model, climate_zone, area_type, fuel_type, area_ft2, num_stories, custom)
# Modify the fuel type if called for by the standard
if custom == 'Xcel Energy CO EDA'
# fuel type remains unchanged
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', 'Custom; per Xcel EDA Program Manual 2014 Table 3.2.2 Baseline HVAC System Types, the 90.1-2010 rules for heating fuel type (based on proposed model) rules apply.')
else
fuel_type = model_prm_baseline_system_change_fuel_type(model, fuel_type, climate_zone)
end
# Define the lookup by row and by fuel type
sys_lookup = Hash.new { |h, k| h[k] = Hash.new(&h.default_proc) }
# fossil, fossil and electric, purchased heat, purchased heat and cooling
sys_lookup['1_or_2']['fossil'] = ['PTAC', 'NaturalGas', nil, 'Electricity']
sys_lookup['1_or_2']['fossilandelectric'] = ['PTAC', 'NaturalGas', nil, 'Electricity']
sys_lookup['1_or_2']['purchasedheat'] = ['PTAC', 'DistrictHeating', nil, 'Electricity']
sys_lookup['1_or_2']['purchasedheatandcooling'] = ['Fan_Coil', 'DistrictHeating', nil, 'DistrictCooling']
sys_lookup['3_or_4']['fossil'] = ['PSZ_AC', 'NaturalGas', nil, 'Electricity']
sys_lookup['3_or_4']['fossilandelectric'] = ['PSZ_AC', 'NaturalGas', nil, 'Electricity']
sys_lookup['3_or_4']['purchasedheat'] = ['PSZ_AC', 'DistrictHeating', nil, 'Electricity']
sys_lookup['3_or_4']['purchasedheatandcooling'] = ['PSZ_AC', 'DistrictHeating', nil, 'DistrictCooling']
sys_lookup['5_or_6']['fossil'] = ['PVAV_Reheat', 'NaturalGas', 'NaturalGas', 'Electricity']
sys_lookup['5_or_6']['fossilandelectric'] = ['PVAV_Reheat', 'NaturalGas', 'Electricity', 'Electricity']
sys_lookup['5_or_6']['purchasedheat'] = ['PVAV_Reheat', 'DistrictHeating', 'DistrictHeating', 'Electricity']
sys_lookup['5_or_6']['purchasedheatandcooling'] = ['PVAV_Reheat', 'DistrictHeating', 'DistrictHeating', 'DistrictCooling']
sys_lookup['7_or_8']['fossil'] = ['VAV_Reheat', 'NaturalGas', 'NaturalGas', 'Electricity']
sys_lookup['7_or_8']['fossilandelectric'] = ['VAV_Reheat', 'NaturalGas', 'Electricity', 'Electricity']
sys_lookup['7_or_8']['purchasedheat'] = ['VAV_Reheat', 'DistrictHeating', 'DistrictHeating', 'Electricity']
sys_lookup['7_or_8']['purchasedheatandcooling'] = ['VAV_Reheat', 'DistrictHeating', 'DistrictHeating', 'DistrictCooling']
sys_lookup['9_or_10']['fossil'] = ['Gas_Furnace', 'NaturalGas', nil, nil]
sys_lookup['9_or_10']['fossilandelectric'] = ['Gas_Furnace', 'NaturalGas', nil, nil]
sys_lookup['9_or_10']['purchasedheat'] = ['Gas_Furnace', 'DistrictHeating', nil, nil]
sys_lookup['9_or_10']['purchasedheatandcooling'] = ['Gas_Furnace', 'DistrictHeating', nil, nil]
# electric (heat), purchased cooling
sys_lookup['1_or_2']['electric'] = ['PTHP', 'Electricity', nil, 'Electricity']
sys_lookup['1_or_2']['purchasedcooling'] = ['Fan_Coil', 'NaturalGas', nil, 'DistrictCooling']
sys_lookup['3_or_4']['electric'] = ['PSZ_HP', 'Electricity', nil, 'Electricity']
sys_lookup['3_or_4']['purchasedcooling'] = ['PSZ_AC', 'NaturalGas', nil, 'DistrictCooling']
sys_lookup['5_or_6']['electric'] = ['PVAV_PFP_Boxes', 'Electricity', 'Electricity', 'Electricity']
sys_lookup['5_or_6']['purchasedcooling'] = ['PVAV_PFP_Boxes', 'Electricity', 'Electricity', 'DistrictCooling']
sys_lookup['7_or_8']['electric'] = ['VAV_PFP_Boxes', 'Electricity', 'Electricity', 'Electricity']
sys_lookup['7_or_8']['purchasedcooling'] = ['VAV_PFP_Boxes', 'Electricity', 'Electricity', 'DistrictCooling']
sys_lookup['9_or_10']['electric'] = ['Electric_Furnace', 'Electricity', nil, nil]
sys_lookup['9_or_10']['purchasedcooling'] = ['Electric_Furnace', 'Electricity', nil, nil]
# Get the system type
system_type = sys_lookup[sys_num][fuel_type]
if system_type.nil?
system_type = [nil, nil, nil, nil]
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Could not determine system type for #{template}, #{area_type}, #{fuel_type}, #{area_ft2.round} ft^2, #{num_stories} stories.")
else
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "System type is #{system_type[0]} for #{template}, #{area_type}, #{fuel_type}, #{area_ft2.round} ft^2, #{num_stories} stories.")
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "--- #{system_type[1]} for main heating") unless system_type[1].nil?
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "--- #{system_type[2]} for zone heat/reheat") unless system_type[2].nil?
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "--- #{system_type[3]} for cooling") unless system_type[3].nil?
end
return system_type
end
# Determines which system number is used for the baseline system. Default is 90.1-2004 approach.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param climate_zone [String] ASHRAE climate zone, e.g. 'ASHRAE 169-2013-4A'
# @param area_type [String] Valid choices are residential, nonresidential, and heatedonly
# @param fuel_type [String] Valid choices are electric, fossil, fossilandelectric,
# purchasedheat, purchasedcooling, purchasedheatandcooling
# @param area_ft2 [Double] Area in ft^2
# @param num_stories [Integer] Number of stories
# @param custom [String] custom fuel type
# @return [String] the system number: 1_or_2, 3_or_4, 5_or_6, 7_or_8, 9_or_10
def model_prm_baseline_system_number(model, climate_zone, area_type, fuel_type, area_ft2, num_stories, custom)
sys_num = nil
# Set the area limit
limit_ft2 = 75_000
# Warn about heated only
if area_type == 'heatedonly'
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', "Per Table G3.1.10.d, '(In the proposed building) Where no cooling system exists or no cooling system has been specified, the cooling system shall be identical to the system modeled in the baseline building design.' This requires that you go back and add a cooling system to the proposed model. This code cannot do that for you; you must do it manually.")
end
case area_type
when 'residential'
sys_num = '1_or_2'
when 'nonresidential', 'heatedonly'
# nonresidential and 3 floors or less and <25,000 ft2
if num_stories <= 3 && area_ft2 < limit_ft2
sys_num = '3_or_4'
# nonresidential and 4 or 5 floors or 5 floors or less and 25,000 ft2 to 150,000 ft2
elsif ((num_stories == 4 || num_stories == 5) && area_ft2 < limit_ft2) || (num_stories <= 5 && (area_ft2 >= limit_ft2 && area_ft2 <= 150_000))
sys_num = '5_or_6'
# nonresidential and more than 5 floors or >150,000 ft2
elsif num_stories >= 5 || area_ft2 > 150_000
sys_num = '7_or_8'
end
end
return sys_num
end
# Change the fuel type based on climate zone, depending on the standard. Defaults to no change.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param fuel_type [String] Valid choices are electric, fossil, fossilandelectric,
# purchasedheat, purchasedcooling, purchasedheatandcooling
# @param climate_zone [String] ASHRAE climate zone, e.g. 'ASHRAE 169-2013-4A'
# @return [String] the revised fuel type
def model_prm_baseline_system_change_fuel_type(model, fuel_type, climate_zone)
# Don't change fuel type for most templates
return fuel_type
end
# Add the specified baseline system type to the specified zones based on the specified template.
# For some multi-zone system types, the standards require identifying zones whose loads or schedules
# are outliers and putting these systems on separate single-zone systems. This method does that.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param system_type [String] The system type. Valid choices are PTHP, PTAC, PSZ_AC, PSZ_HP, PVAV_Reheat,
# PVAV_PFP_Boxes, VAV_Reheat, VAV_PFP_Boxes, Gas_Furnace, Electric_Furnace,
# which are also returned by the method OpenStudio::Model::Model.prm_baseline_system_type.
# @param main_heat_fuel [String] main heating fuel. Valid choices are Electricity, NaturalGas, DistrictHeating, DistrictHeatingWater, DistrictHeatingSteam
# @param zone_heat_fuel [String] zone heating/reheat fuel. Valid choices are Electricity, NaturalGas, DistrictHeating, DistrictHeatingWater, DistrictHeatingSteam
# @param cool_fuel [String] cooling fuel. Valid choices are Electricity, DistrictCooling
# @param zones [Array<OpenStudio::Model::ThermalZone>] an array of zones
# @return [Boolean] returns true if successful, false if not
# @todo Add 90.1-2013 systems 11-13
def model_add_prm_baseline_system(model, system_type, main_heat_fuel, zone_heat_fuel, cool_fuel, zones, zone_fan_scheds)
case system_type
when 'PTAC' # System 1
unless zones.empty?
# Retrieve the existing hot water loop or add a new one if necessary.
hot_water_loop = nil
hot_water_loop = if model.getPlantLoopByName('Hot Water Loop').is_initialized
model.getPlantLoopByName('Hot Water Loop').get
else
model_add_hw_loop(model, main_heat_fuel)
end
# Add a hot water PTAC to each zone
model_add_ptac(model,
zones,
cooling_type: 'Single Speed DX AC',
heating_type: 'Water',
hot_water_loop: hot_water_loop,
fan_type: 'ConstantVolume')
end
when 'PTHP' # System 2
unless zones.empty?
# add an air-source packaged terminal heat pump with electric supplemental heat to each zone.
model_add_pthp(model,
zones,
fan_type: 'ConstantVolume')
end
when 'PSZ_AC' # System 3
unless zones.empty?
heating_type = 'Gas'
# if district heating
hot_water_loop = nil
if main_heat_fuel.include?('DistrictHeating')
heating_type = 'Water'
hot_water_loop = if model.getPlantLoopByName('Hot Water Loop').is_initialized
model.getPlantLoopByName('Hot Water Loop').get
else
model_add_hw_loop(model, main_heat_fuel)
end
end
cooling_type = 'Single Speed DX AC'
# If district cooling
chilled_water_loop = nil
if cool_fuel == 'DistrictCooling'
cooling_type = 'Water'
chilled_water_loop = if model.getPlantLoopByName('Chilled Water Loop').is_initialized
model.getPlantLoopByName('Chilled Water Loop').get
else
model_add_chw_loop(model,
cooling_fuel: cool_fuel,
chw_pumping_type: 'const_pri')
end
end
# Add a PSZ-AC to each zone
model_add_psz_ac(model,
zones,
cooling_type: cooling_type,
chilled_water_loop: chilled_water_loop,
heating_type: heating_type,
supplemental_heating_type: 'Gas',
hot_water_loop: hot_water_loop,
fan_location: 'DrawThrough',
fan_type: 'ConstantVolume')
end
when 'PSZ_HP' # System 4
unless zones.empty?
# Add an air-source packaged single zone heat pump with electric supplemental heat to each zone.
model_add_psz_ac(model,
zones,
system_name: 'PSZ-HP',
cooling_type: 'Single Speed Heat Pump',
heating_type: 'Single Speed Heat Pump',
supplemental_heating_type: 'Electric',
fan_location: 'DrawThrough',
fan_type: 'ConstantVolume')
end
when 'PVAV_Reheat' # System 5
# Retrieve the existing hot water loop or add a new one if necessary.
hot_water_loop = nil
hot_water_loop = if model.getPlantLoopByName('Hot Water Loop').is_initialized
model.getPlantLoopByName('Hot Water Loop').get
else
model_add_hw_loop(model, main_heat_fuel)
end
# If district cooling
chilled_water_loop = nil
if cool_fuel == 'DistrictCooling'
chilled_water_loop = if model.getPlantLoopByName('Chilled Water Loop').is_initialized
model.getPlantLoopByName('Chilled Water Loop').get
else
model_add_chw_loop(model,
cooling_fuel: cool_fuel,
chw_pumping_type: 'const_pri')
end
end
# If electric zone heat
electric_reheat = false
if zone_heat_fuel == 'Electricity'
electric_reheat = true
end
# Group zones by story
story_zone_lists = OpenstudioStandards::Geometry.model_group_thermal_zones_by_building_story(model, zones)
# For the array of zones on each story,
# separate the primary zones from the secondary zones.
# Add the baseline system type to the primary zones
# and add the suplemental system type to the secondary zones.
story_zone_lists.each do |story_group|
# Differentiate primary and secondary zones
pri_sec_zone_lists = model_differentiate_primary_secondary_thermal_zones(model, story_group, zone_fan_scheds)
pri_zones = pri_sec_zone_lists['primary']
sec_zones = pri_sec_zone_lists['secondary']
zone_op_hrs = pri_sec_zone_lists['zone_op_hrs']
# Add a PVAV with Reheat for the primary zones
stories = []
story_group[0].spaces.each do |space|
min_z = OpenstudioStandards::Geometry.building_story_get_minimum_height(space.buildingStory.get)
stories << [space.buildingStory.get.name.get, min_z]
end
story_name = stories.min_by { |nm, z| z }[0]
system_name = "#{story_name} PVAV_Reheat (Sys5)"
# If and only if there are primary zones to attach to the loop
# counter example: floor with only one elevator machine room that get classified as sec_zones
unless pri_zones.empty?
air_loop = model_add_pvav(model,
pri_zones,
system_name: system_name,
hot_water_loop: hot_water_loop,
chilled_water_loop: chilled_water_loop,
electric_reheat: electric_reheat)
model_system_outdoor_air_sizing_vrp_method(air_loop)
air_loop_hvac_apply_vav_damper_action(air_loop)
model_create_multizone_fan_schedule(model, zone_op_hrs, pri_zones, system_name)
end
# Add a PSZ_AC for each secondary zone
unless sec_zones.empty?
model_add_prm_baseline_system(model, 'PSZ_AC', main_heat_fuel, zone_heat_fuel, cool_fuel, sec_zones, zone_fan_scheds)
end
end
when 'PVAV_PFP_Boxes' # System 6
# If district cooling
chilled_water_loop = nil
if cool_fuel == 'DistrictCooling'
chilled_water_loop = if model.getPlantLoopByName('Chilled Water Loop').is_initialized
model.getPlantLoopByName('Chilled Water Loop').get
else
model_add_chw_loop(model,
cooling_fuel: cool_fuel,
chw_pumping_type: 'const_pri')
end
end
# Group zones by story
story_zone_lists = OpenstudioStandards::Geometry.model_group_thermal_zones_by_building_story(model, zones)
# For the array of zones on each story,
# separate the primary zones from the secondary zones.
# Add the baseline system type to the primary zones
# and add the suplemental system type to the secondary zones.
story_zone_lists.each do |story_group|
# Differentiate primary and secondary zones
pri_sec_zone_lists = model_differentiate_primary_secondary_thermal_zones(model, story_group, zone_fan_scheds)
pri_zones = pri_sec_zone_lists['primary']
sec_zones = pri_sec_zone_lists['secondary']
zone_op_hrs = pri_sec_zone_lists['zone_op_hrs']
# Add an VAV for the primary zones
stories = []
story_group[0].spaces.each do |space|
min_z = OpenstudioStandards::Geometry.building_story_get_minimum_height(space.buildingStory.get)
stories << [space.buildingStory.get.name.get, min_z]
end
story_name = stories.min_by { |nm, z| z }[0]
system_name = "#{story_name} PVAV_PFP_Boxes (Sys6)"
# If and only if there are primary zones to attach to the loop
unless pri_zones.empty?
model_add_pvav_pfp_boxes(model,
pri_zones,
system_name: system_name,
chilled_water_loop: chilled_water_loop,
fan_efficiency: 0.62,
fan_motor_efficiency: 0.9,
fan_pressure_rise: 4.0)
model_create_multizone_fan_schedule(model, zone_op_hrs, pri_zones, system_name)
end
# Add a PSZ_HP for each secondary zone
unless sec_zones.empty?
model_add_prm_baseline_system(model, 'PSZ_HP', main_heat_fuel, zone_heat_fuel, cool_fuel, sec_zones, zone_fan_scheds)
end
end
when 'VAV_Reheat' # System 7
# Retrieve the existing hot water loop or add a new one if necessary.
hot_water_loop = nil
hot_water_loop = if model.getPlantLoopByName('Hot Water Loop').is_initialized
model.getPlantLoopByName('Hot Water Loop').get
else
model_add_hw_loop(model, main_heat_fuel)
end
# Retrieve the existing chilled water loop or add a new one if necessary.
chilled_water_loop = nil
if model.getPlantLoopByName('Chilled Water Loop').is_initialized
chilled_water_loop = model.getPlantLoopByName('Chilled Water Loop').get
else
if cool_fuel == 'DistrictCooling'
chilled_water_loop = model_add_chw_loop(model,
cooling_fuel: cool_fuel,
chw_pumping_type: 'const_pri')
else
fan_type = model_cw_loop_cooling_tower_fan_type(model)
condenser_water_loop = model_add_cw_loop(model,
cooling_tower_type: 'Open Cooling Tower',
cooling_tower_fan_type: 'Propeller or Axial',
cooling_tower_capacity_control: fan_type,
number_of_cells_per_tower: 1,
number_cooling_towers: 1)
chilled_water_loop = model_add_chw_loop(model,
chw_pumping_type: 'const_pri_var_sec',
chiller_cooling_type: 'WaterCooled',
chiller_compressor_type: 'Rotary Screw',
condenser_water_loop: condenser_water_loop)
end
end
# If electric zone heat
reheat_type = 'Water'
if zone_heat_fuel == 'Electricity'
reheat_type = 'Electricity'
end
# Group zones by story
story_zone_lists = OpenstudioStandards::Geometry.model_group_thermal_zones_by_building_story(model, zones)
# For the array of zones on each story, separate the primary zones from the secondary zones.
# Add the baseline system type to the primary zones and add the suplemental system type to the secondary zones.
story_zone_lists.each do |story_group|
# The OpenstudioStandards::Geometry.model_group_thermal_zones_by_building_story(model) NO LONGER returns empty lists when a given floor doesn't have any of the zones
# So NO need to filter it out otherwise you get an error undefined method `spaces' for nil:NilClass
# next if zones.empty?
# Differentiate primary and secondary zones
pri_sec_zone_lists = model_differentiate_primary_secondary_thermal_zones(model, story_group, zone_fan_scheds)
pri_zones = pri_sec_zone_lists['primary']
sec_zones = pri_sec_zone_lists['secondary']
zone_op_hrs = pri_sec_zone_lists['zone_op_hrs']
# Add a VAV for the primary zones
stories = []
story_group[0].spaces.each do |space|
min_z = OpenstudioStandards::Geometry.building_story_get_minimum_height(space.buildingStory.get)
stories << [space.buildingStory.get.name.get, min_z]
end
story_name = stories.min_by { |nm, z| z }[0]
system_name = "#{story_name} VAV_Reheat (Sys7)"
# If and only if there are primary zones to attach to the loop
# counter example: floor with only one elevator machine room that get classified as sec_zones
unless pri_zones.empty?
# if the loop configuration is primary / secondary loop
if chilled_water_loop.additionalProperties.hasFeature('secondary_loop_name')
chilled_water_loop = model.getPlantLoopByName(chilled_water_loop.additionalProperties.getFeatureAsString('secondary_loop_name').get).get
end
air_loop = model_add_vav_reheat(model,
pri_zones,
system_name: system_name,
reheat_type: reheat_type,
hot_water_loop: hot_water_loop,
chilled_water_loop: chilled_water_loop,
fan_efficiency: 0.62,
fan_motor_efficiency: 0.9,
fan_pressure_rise: 4.0)
model_system_outdoor_air_sizing_vrp_method(air_loop)
air_loop_hvac_apply_vav_damper_action(air_loop)
model_create_multizone_fan_schedule(model, zone_op_hrs, pri_zones, system_name)
end
# Add a PSZ_AC for each secondary zone
unless sec_zones.empty?
model_add_prm_baseline_system(model, 'PSZ_AC', main_heat_fuel, zone_heat_fuel, cool_fuel, sec_zones, zone_fan_scheds)
end
end
when 'VAV_PFP_Boxes' # System 8
# Retrieve the existing chilled water loop or add a new one if necessary.
chilled_water_loop = nil
if model.getPlantLoopByName('Chilled Water Loop').is_initialized
chilled_water_loop = model.getPlantLoopByName('Chilled Water Loop').get
else
if cool_fuel == 'DistrictCooling'
chilled_water_loop = model_add_chw_loop(model,
cooling_fuel: cool_fuel,
chw_pumping_type: 'const_pri')
else
fan_type = model_cw_loop_cooling_tower_fan_type(model)
condenser_water_loop = model_add_cw_loop(model,
cooling_tower_type: 'Open Cooling Tower',
cooling_tower_fan_type: 'Propeller or Axial',
cooling_tower_capacity_control: fan_type,
number_of_cells_per_tower: 1,
number_cooling_towers: 1)
chilled_water_loop = model_add_chw_loop(model,
chw_pumping_type: 'const_pri_var_sec',
chiller_cooling_type: 'WaterCooled',
chiller_compressor_type: 'Rotary Screw',
condenser_water_loop: condenser_water_loop)
end
end
# Group zones by story
story_zone_lists = OpenstudioStandards::Geometry.model_group_thermal_zones_by_building_story(model, zones)
# For the array of zones on each story,
# separate the primary zones from the secondary zones.
# Add the baseline system type to the primary zones
# and add the suplemental system type to the secondary zones.
story_zone_lists.each do |story_group|
# Differentiate primary and secondary zones
pri_sec_zone_lists = model_differentiate_primary_secondary_thermal_zones(model, story_group, zone_fan_scheds)
pri_zones = pri_sec_zone_lists['primary']
sec_zones = pri_sec_zone_lists['secondary']
zone_op_hrs = pri_sec_zone_lists['zone_op_hrs']
# Add an VAV for the primary zones
stories = []
story_group[0].spaces.each do |space|
min_z = OpenstudioStandards::Geometry.building_story_get_minimum_height(space.buildingStory.get)
stories << [space.buildingStory.get.name.get, min_z]
end
story_name = stories.min_by { |nm, z| z }[0]
system_name = "#{story_name} VAV_PFP_Boxes (Sys8)"
# If and only if there are primary zones to attach to the loop
unless pri_zones.empty?
if chilled_water_loop.additionalProperties.hasFeature('secondary_loop_name')
chilled_water_loop = model.getPlantLoopByName(chilled_water_loop.additionalProperties.getFeatureAsString('secondary_loop_name').get).get
end
model_add_vav_pfp_boxes(model,
pri_zones,
system_name: system_name,
chilled_water_loop: chilled_water_loop,
fan_efficiency: 0.62,
fan_motor_efficiency: 0.9,
fan_pressure_rise: 4.0)
model_create_multizone_fan_schedule(model, zone_op_hrs, pri_zones, system_name)
end
# Add a PSZ_HP for each secondary zone
unless sec_zones.empty?
model_add_prm_baseline_system(model, 'PSZ_HP', main_heat_fuel, zone_heat_fuel, cool_fuel, sec_zones, zone_fan_scheds)
end
end
when 'Gas_Furnace' # System 9
unless zones.empty?
# If district heating
hot_water_loop = nil
if main_heat_fuel.include?('DistrictHeating')
hot_water_loop = if model.getPlantLoopByName('Hot Water Loop').is_initialized
model.getPlantLoopByName('Hot Water Loop').get
else
model_add_hw_loop(model, main_heat_fuel)
end
end
# Add a System 9 - Gas Unit Heater to each zone
model_add_unitheater(model,
zones,
fan_control_type: 'ConstantVolume',
fan_pressure_rise: 0.2,
heating_type: main_heat_fuel,
hot_water_loop: hot_water_loop)
end
when 'Electric_Furnace' # System 10
unless zones.empty?
# Add a System 10 - Electric Unit Heater to each zone
model_add_unitheater(model,
zones,
fan_control_type: 'ConstantVolume',
fan_pressure_rise: 0.2,
heating_type: main_heat_fuel)
end
when 'SZ_CV' # System 12 (gas or district heat) or System 13 (electric resistance heat)
unless zones.empty?
hot_water_loop = nil
if zone_heat_fuel.include?('DistrictHeating') || zone_heat_fuel == 'NaturalGas'
heating_type = 'Water'
hot_water_loop = if model.getPlantLoopByName('Hot Water Loop').is_initialized
model.getPlantLoopByName('Hot Water Loop').get
else
model_add_hw_loop(model, main_heat_fuel)
end
else
# If no hot water loop is defined, heat will default to electric resistance
heating_type = 'Electric'
end
cooling_type = 'Water'
chilled_water_loop = if model.getPlantLoopByName('Chilled Water Loop').is_initialized
model.getPlantLoopByName('Chilled Water Loop').get
else
model_add_chw_loop(model,
cooling_fuel: cool_fuel,
chw_pumping_type: 'const_pri')
end
model_add_four_pipe_fan_coil(model,
zones,
chilled_water_loop,
hot_water_loop: hot_water_loop,
ventilation: true,
capacity_control_method: 'ConstantVolume')
end
when 'SZ_VAV' # System 11, chilled water, heating type varies by climate zone
unless zones.empty?
# htg type
climate_zone = OpenstudioStandards::Weather.model_get_climate_zone(model)
case climate_zone
when 'ASHRAE 169-2006-0A',
'ASHRAE 169-2006-0B',
'ASHRAE 169-2006-1A',
'ASHRAE 169-2006-1B',
'ASHRAE 169-2006-2A',
'ASHRAE 169-2006-2B',
'ASHRAE 169-2013-0A',
'ASHRAE 169-2013-0B',
'ASHRAE 169-2013-1A',
'ASHRAE 169-2013-1B',
'ASHRAE 169-2013-2A',
'ASHRAE 169-2013-2B'
heating_type = 'Electric'
hot_water_loop = nil
else
hot_water_loop = if model.getPlantLoopByName('Hot Water Loop').is_initialized
model.getPlantLoopByName('Hot Water Loop').get
else
hot_water_loop = model_add_hw_loop(model, main_heat_fuel)
end
heating_type = 'Water'
end
# clg type
chilled_water_loop = if model.getPlantLoopByName('Chilled Water Loop').is_initialized
model.getPlantLoopByName('Chilled Water Loop').get
else
chilled_water_loop = model_add_chw_loop(model, chw_pumping_type: 'const_pri')
end
model_add_psz_vav(model,
zones,
heating_type: heating_type,
cooling_type: 'WaterCooled',
supplemental_heating_type: nil,
hvac_op_sch: nil,
fan_type: 'PSZ_VAV_System_Fan',
oa_damper_sch: nil,
hot_water_loop: hot_water_loop,
chilled_water_loop: chilled_water_loop,
minimum_volume_setpoint: 0.5)
end
else
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "System type #{system_type} is not a valid choice, nothing will be added to the model.")
return false
end
return true
end
# Determines the fan type used by VAV_Reheat and VAV_PFP_Boxes systems.
# Defaults to two speed fan.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [String] the fan type: TwoSpeed Fan, Variable Speed Fan
def model_baseline_system_vav_fan_type(model)
fan_type = 'TwoSpeed Fan'
return fan_type
end
# Looks through the model and creates an hash of what the baseline system type should be for each zone.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param climate_zone [String] ASHRAE climate zone, e.g. 'ASHRAE 169-2013-4A'
# @param custom [String] custom fuel type
# @return [Hash] keys are zones, values are system type strings
# PTHP, PTAC, PSZ_AC, PSZ_HP, PVAV_Reheat, PVAV_PFP_Boxes,
# VAV_Reheat, VAV_PFP_Boxes, Gas_Furnace, Electric_Furnace
def model_get_baseline_system_type_by_zone(model, climate_zone, custom = nil)
zone_to_sys_type = {}
# Get the groups of zones that define the
# baseline HVAC systems for later use.
# This must be done before removing the HVAC systems
# because it requires knowledge of proposed HVAC fuels.
sys_groups = model_prm_baseline_system_groups(model, custom)
# Assign building stories to spaces in the building
# where stories are not yet assigned.
OpenstudioStandards::Geometry.model_assign_spaces_to_building_stories(model)
# Determine the baseline HVAC system type for each of
# the groups of zones and add that system type.
sys_groups.each do |sys_group|
# Determine the primary baseline system type
pri_system_type = model_prm_baseline_system_type(model, climate_zone, sys_group, custom)[0]
# Record the zone-by-zone system type assignments
case pri_system_type
when 'PTAC', 'PTHP', 'PSZ_AC', 'PSZ_HP', 'Gas_Furnace', 'Electric_Furnace'
sys_group['zones'].each do |zone|
zone_to_sys_type[zone] = pri_system_type
end
when 'PVAV_Reheat', 'PVAV_PFP_Boxes', 'VAV_Reheat', 'VAV_PFP_Boxes'
# Determine the secondary system type
sec_system_type = nil
case pri_system_type
when 'PVAV_Reheat', 'VAV_Reheat'
sec_system_type = 'PSZ_AC'
when 'PVAV_PFP_Boxes', 'VAV_PFP_Boxes'
sec_system_type = 'PSZ_HP'
end
# Group zones by story
story_zone_lists = OpenstudioStandards::Geometry.model_group_thermal_zones_by_building_story(model, sys_group['zones'])
# For the array of zones on each story,
# separate the primary zones from the secondary zones.
# Add the baseline system type to the primary zones
# and add the suplemental system type to the secondary zones.
story_zone_lists.each do |story_group|
# Differentiate primary and secondary zones
pri_sec_zone_lists = model_differentiate_primary_secondary_thermal_zones(model, story_group)
# Record the primary zone system types
pri_sec_zone_lists['primary'].each do |zone|
zone_to_sys_type[zone] = pri_system_type
end
# Record the secondary zone system types
pri_sec_zone_lists['secondary'].each do |zone|
zone_to_sys_type[zone] = sec_system_type
end
end
end
end
return zone_to_sys_type
end
# elimates outlier zones based on a set of keys
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param array_of_zones [Array] an array of Hashes for each zone, with the keys 'zone'
# @param key_to_inspect [String] hash key to inspect in array of zones
# @param tolerance [Double] tolerance
# @param field_name [String] field name to inspect
# @param units [String] units
# @return [Array] an array of Hashes for each zone
def model_eliminate_outlier_zones(model, array_of_zones, key_to_inspect, tolerance, field_name, units)
# Sort the zones by the desired key
begin
array_of_zones = array_of_zones.sort_by { |hsh| hsh[key_to_inspect] }
rescue ArgumentError => e
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Unable to sort array_of_zones by #{key_to_inspect} due to #{e.message}, defaulting to order that was passed")
end
# Calculate the area-weighted average
total = 0.0
total_area = 0.0
all_vals = []
all_areas = []
all_zn_names = []
array_of_zones.each do |zn|
val = zn[key_to_inspect]
area = zn['area_ft2']
total += val * area
total_area += area
all_vals << val.round(1)
all_areas << area.round
all_zn_names << zn['zone'].name.get.to_s
end
if total_area == 0
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Total area is zero for array_of_zones with key #{key_to_inspect}, unable to calculate area-weighted average.")
return false
end
avg = total / total_area
OpenStudio.logFree(OpenStudio::Debug, 'openstudio.standards.Model', "Values for #{field_name}, tol = #{tolerance} #{units}, area ft2:")
OpenStudio.logFree(OpenStudio::Debug, 'openstudio.standards.Model', "vals #{all_vals.join(', ')}")
OpenStudio.logFree(OpenStudio::Debug, 'openstudio.standards.Model', "areas #{all_areas.join(', ')}")
OpenStudio.logFree(OpenStudio::Debug, 'openstudio.standards.Model', "names #{all_zn_names.join(', ')}")
# Calculate the biggest delta and the index of the biggest delta
biggest_delta_i = 0 # array at first item in case delta is 0
biggest_delta = 0.0
worst = nil
array_of_zones.each_with_index do |zn, i|
val = zn[key_to_inspect]
if worst.nil? # array at first item in case delta is 0
worst = val
end
delta = (val - avg).abs
if delta >= biggest_delta
biggest_delta = delta
biggest_delta_i = i
worst = val
end
end
# puts " #{worst} - #{avg.round} = #{biggest_delta.round} biggest delta"
# Compare the biggest delta against the difference and eliminate that zone if higher than the limit.
if biggest_delta > tolerance
zn_name = array_of_zones[biggest_delta_i]['zone'].name.get.to_s
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "For zone #{zn_name}, the #{field_name} of #{worst.round(1)} #{units} is more than #{tolerance} #{units} outside the area-weighted average of #{avg.round(1)} #{units}; it will be placed on its own secondary system.")
array_of_zones.delete_at(biggest_delta_i)
# Call method recursively if something was eliminated
array_of_zones = model_eliminate_outlier_zones(model, array_of_zones, key_to_inspect, tolerance, field_name, units)
else
zn_name = array_of_zones[biggest_delta_i]['zone'].name.get.to_s
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "For zone #{zn_name}, the #{field_name} #{worst.round(2)} #{units} - average #{field_name} #{avg.round(2)} #{units} = #{biggest_delta.round(2)} #{units} less than the tolerance of #{tolerance} #{units}, stopping elimination process.")
end
return array_of_zones
end
# Determine which of the zones should be served by the primary HVAC system.
# First, eliminate zones that differ by more# than 40 full load hours per week.
# In this case, lighting schedule is used as the proxy for operation instead
# of occupancy to avoid accidentally removing transition spaces.
# Second, eliminate zones whose design internal loads differ from the area-weighted average of all other zones
# on the system by more than 10 Btu/hr*ft^2.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param zones [Array<OpenStudio::Model::ThermalZone>] an array of zones
# @return [Hash] A hash of two arrays of ThermalZones,
# where the keys are 'primary' and 'secondary'
def model_differentiate_primary_secondary_thermal_zones(model, zones, zone_fan_scheds = nil)
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', 'Determining which zones are served by the primary vs. secondary HVAC system.')
# Determine the operational hours (proxy is annual
# full load lighting hours) for all zones
zone_data_1 = []
zones.each do |zone|
data = {}
data['zone'] = zone
# Get the area
area_ft2 = OpenStudio.convert(zone.floorArea * zone.multiplier, 'm^2', 'ft^2').get
data['area_ft2'] = area_ft2
# OpenStudio::logFree(OpenStudio::Info, "openstudio.Standards.Model", "#{zone.name}")
zone.spaces.each do |space|
# OpenStudio::logFree(OpenStudio::Info, "openstudio.Standards.Model", "***#{space.name}")
# Get all lights from either the space
# or the space type.
all_lights = []
all_lights += space.lights
if space.spaceType.is_initialized
all_lights += space.spaceType.get.lights
end
# Base the annual operational hours
# on the first lights schedule with hours
# greater than zero.
ann_op_hrs = 0
all_lights.sort.each do |lights|
# OpenStudio::logFree(OpenStudio::Info, "openstudio.Standards.Model", "******#{lights.name}")
# Get the fractional lighting schedule
lights_sch = lights.schedule
full_load_hrs = 0.0
# Skip lights with no schedule
next if lights_sch.empty?
lights_sch = lights_sch.get
full_load_hrs = OpenstudioStandards::Schedules.schedule_get_equivalent_full_load_hours(lights_sch)
if full_load_hrs > 0
ann_op_hrs = full_load_hrs
break # Stop after the first schedule with more than 0 hrs
end
end
wk_op_hrs = ann_op_hrs / 52.0
data['wk_op_hrs'] = wk_op_hrs
# OpenStudio::logFree(OpenStudio::Info, "openstudio.Standards.Model", "******wk_op_hrs = #{wk_op_hrs.round}")
end
zone_data_1 << data
end
# Filter out any zones that operate differently by more than 40hrs/wk.
# This will be determined by a difference of more than (40 hrs/wk * 52 wks/yr) = 2080 annual full load hrs.
zones_same_hrs = model_eliminate_outlier_zones(model, zone_data_1, 'wk_op_hrs', 40, 'weekly operating hrs', 'hrs')
# Get the internal loads for
# all remaining zones.
zone_data_2 = []
zones_same_hrs.each do |zn_data|
data = {}
zone = zn_data['zone']
data['zone'] = zone
# Get the area
area_m2 = zone.floorArea * zone.multiplier
area_ft2 = OpenStudio.convert(area_m2, 'm^2', 'ft^2').get
data['area_ft2'] = area_ft2
# Get the internal loads
int_load_w = OpenstudioStandards::ThermalZone.thermal_zone_get_design_internal_load(zone) * zone.multiplier
# Normalize per-area
int_load_w_per_m2 = int_load_w / area_m2
int_load_btu_per_ft2 = OpenStudio.convert(int_load_w_per_m2, 'W/m^2', 'Btu/hr*ft^2').get
data['int_load_btu_per_ft2'] = int_load_btu_per_ft2
zone_data_2 << data
end
# Filter out any zones that are +/- 10 Btu/hr*ft^2 from the average
pri_zn_data = model_eliminate_outlier_zones(model, zone_data_2, 'int_load_btu_per_ft2', 10, 'internal load', 'Btu/hr*ft^2')
# Get just the primary zones themselves
pri_zones = []
pri_zone_names = []
pri_zn_data.each do |zn_data|
pri_zones << zn_data['zone']
pri_zone_names << zn_data['zone'].name.get.to_s
end
# Get the secondary zones
sec_zones = []
sec_zone_names = []
zones.each do |zone|
unless pri_zones.include?(zone)
sec_zones << zone
sec_zone_names << zone.name.get.to_s
end
end
# Report out the primary vs. secondary zones
unless pri_zone_names.empty?
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Primary system zones = #{pri_zone_names.join(', ')}.")
end
unless sec_zone_names.empty?
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Secondary system zones = #{sec_zone_names.join(', ')}.")
end
zone_op_hrs = []
return { 'primary' => pri_zones, 'secondary' => sec_zones, 'zone_op_hrs' => zone_op_hrs }
end
# For a multizone system, get straight average of hash values excluding the reference zone
# @author Doug Maddox, PNNL
# @param value_hash [Hash<String>] of zoneName:Value
# @param ref_zone [String] name of reference zone
def get_avg_of_other_zones(value_hash, ref_zone)
num_others = value_hash.size - 1
value_sum = 0
value_hash.each do |key, val|
value_sum += val unless key == ref_zone
end
if num_others == 0
value_avg = value_hash[ref_zone]
else
value_avg = value_sum / num_others
end
return value_avg
end
# For a multizone system, get area weighted average of hash values excluding the reference zone
# @author Doug Maddox, PNNL
# @param value_hash [Hash<String>] of zoneName:Value
# @param area_hash [Hash<String>] of zoneName:Area
# @param ref_zone [String] name of reference zone
def get_wtd_avg_of_other_zones(value_hash, area_hash, ref_zone)
num_others = value_hash.size - 1
value_sum = 0
area_sum = 0
value_hash.each do |key, val|
value_sum += val * area_hash[key] unless key == ref_zone
area_sum += area_hash[key] unless key == ref_zone
end
if num_others == 0
value_avg = value_hash[ref_zone]
else
value_avg = value_sum / area_sum
end
return value_avg
end
# For a multizone system, create the fan schedule based on zone occupancy/fan schedules
# @author Doug Maddox, PNNL
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param zone_op_hrs [Hash] hash of zoneName zone_op_hrs
# @param pri_zones [Array<String>] names of zones served by the multizone system
# @param system_name [String] name of air loop
def model_create_multizone_fan_schedule(model, zone_op_hrs, pri_zones, system_name)
# Not applicable if not stable baseline
return
end
# Applies the multi-zone VAV outdoor air sizing requirements to all applicable air loops in the model.
# @note This must be performed before the sizing run because it impacts component sizes, which in turn impact efficiencies.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Boolean] returns true if successful, false if not
def model_apply_multizone_vav_outdoor_air_sizing(model)
OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', 'Started applying multizone vav OA sizing.')
# Multi-zone VAV outdoor air sizing
model.getAirLoopHVACs.sort.each { |obj| air_loop_hvac_apply_multizone_vav_outdoor_air_sizing(obj) }
OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', 'Finished applying multizone vav OA sizing.')
end
# Applies the HVAC parts of the template to all objects in the model using the the template specified in the model.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param climate_zone [String] ASHRAE climate zone, e.g. 'ASHRAE 169-2013-4A'
# @param apply_controls [Boolean] toggle whether to apply air loop and plant loop controls
# @param sql_db_vars_map [Hash] hash map
# @param necb_ref_hp [Boolean] for compatability with NECB ruleset only.
# @return [Boolean] returns true if successful, false if not
def model_apply_hvac_efficiency_standard(model, climate_zone, apply_controls: true, sql_db_vars_map: nil, necb_ref_hp: false)
sql_db_vars_map = {} if sql_db_vars_map.nil?
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Started applying HVAC efficiency standards for #{template} template.")
# Air Loop Controls
if apply_controls.nil? || apply_controls == true
model.getAirLoopHVACs.sort.each { |obj| air_loop_hvac_apply_standard_controls(obj, climate_zone) }
end
# Plant Loop Controls
if apply_controls.nil? || apply_controls == true
model.getPlantLoops.sort.each { |obj| plant_loop_apply_standard_controls(obj, climate_zone) }
end
# Zone HVAC Controls
model.getZoneHVACComponents.sort.each { |obj| zone_hvac_component_apply_standard_controls(obj) }
##### Apply equipment efficiencies
# Fans
model.getFanVariableVolumes.sort.each { |obj| fan_apply_standard_minimum_motor_efficiency(obj, fan_brake_horsepower(obj)) }
model.getFanConstantVolumes.sort.each { |obj| fan_apply_standard_minimum_motor_efficiency(obj, fan_brake_horsepower(obj)) }
model.getFanOnOffs.sort.each { |obj| fan_apply_standard_minimum_motor_efficiency(obj, fan_brake_horsepower(obj)) }
model.getFanZoneExhausts.sort.each { |obj| fan_apply_standard_minimum_motor_efficiency(obj, fan_brake_horsepower(obj)) }
# Pumps
model.getPumpConstantSpeeds.sort.each { |obj| pump_apply_standard_minimum_motor_efficiency(obj) }
model.getPumpVariableSpeeds.sort.each { |obj| pump_apply_standard_minimum_motor_efficiency(obj) }
model.getHeaderedPumpsConstantSpeeds.sort.each { |obj| pump_apply_standard_minimum_motor_efficiency(obj) }
model.getHeaderedPumpsVariableSpeeds.sort.each { |obj| pump_apply_standard_minimum_motor_efficiency(obj) }
# Unitary HPs
# set DX HP coils before DX clg coils because when DX HP coils need to first
# pull the capacities of their paired DX clg coils, and this does not work
# correctly if the DX clg coil efficiencies have been set because they are renamed.
model.getCoilHeatingDXSingleSpeeds.sort.each { |obj| sql_db_vars_map = coil_heating_dx_single_speed_apply_efficiency_and_curves(obj, sql_db_vars_map, necb_ref_hp) }
# Unitary ACs
model.getCoilCoolingDXTwoSpeeds.sort.each { |obj| sql_db_vars_map = coil_cooling_dx_two_speed_apply_efficiency_and_curves(obj, sql_db_vars_map) }
model.getCoilCoolingDXSingleSpeeds.sort.each { |obj| sql_db_vars_map = coil_cooling_dx_single_speed_apply_efficiency_and_curves(obj, sql_db_vars_map, necb_ref_hp) }
model.getCoilCoolingDXMultiSpeeds.sort.each { |obj| sql_db_vars_map = coil_cooling_dx_multi_speed_apply_efficiency_and_curves(obj, sql_db_vars_map) }
# WSHPs
# set WSHP heating coils before cooling coils to get cooling coil capacities before they are renamed
model.getCoilHeatingWaterToAirHeatPumpEquationFits.sort.each { |obj| sql_db_vars_map = coil_heating_water_to_air_heat_pump_apply_efficiency_and_curves(obj, sql_db_vars_map) }
model.getCoilCoolingWaterToAirHeatPumpEquationFits.sort.each { |obj| sql_db_vars_map = coil_cooling_water_to_air_heat_pump_apply_efficiency_and_curves(obj, sql_db_vars_map) }
# Chillers
clg_tower_objs = model.getCoolingTowerSingleSpeeds
model.getChillerElectricEIRs.sort.each { |obj| chiller_electric_eir_apply_efficiency_and_curves(obj, clg_tower_objs) }
# Boilers
model.getBoilerHotWaters.sort.each { |obj| boiler_hot_water_apply_efficiency_and_curves(obj) }
# Water Heaters
model.getWaterHeaterMixeds.sort.each { |obj| water_heater_mixed_apply_efficiency(obj) }
# Cooling Towers
model.getCoolingTowerSingleSpeeds.sort.each { |obj| cooling_tower_single_speed_apply_efficiency_and_curves(obj) }
model.getCoolingTowerTwoSpeeds.sort.each { |obj| cooling_tower_two_speed_apply_efficiency_and_curves(obj) }
model.getCoolingTowerVariableSpeeds.sort.each { |obj| cooling_tower_variable_speed_apply_efficiency_and_curves(obj) }
# Fluid Coolers
model.getFluidCoolerSingleSpeeds.sort.each { |obj| fluid_cooler_apply_minimum_power_per_flow(obj, equipment_type: 'Dry Cooler') }
model.getFluidCoolerTwoSpeeds.sort.each { |obj| fluid_cooler_apply_minimum_power_per_flow(obj, equipment_type: 'Dry Cooler') }
model.getEvaporativeFluidCoolerSingleSpeeds.sort.each { |obj| fluid_cooler_apply_minimum_power_per_flow(obj, equipment_type: 'Closed Cooling Tower') }
model.getEvaporativeFluidCoolerTwoSpeeds.sort.each { |obj| fluid_cooler_apply_minimum_power_per_flow(obj, equipment_type: 'Closed Cooling Tower') }
# ERVs
model.getHeatExchangerAirToAirSensibleAndLatents.each { |obj| heat_exchanger_air_to_air_sensible_and_latent_apply_effectiveness(obj) }
# Gas Heaters
model.getCoilHeatingGass.sort.each { |obj| coil_heating_gas_apply_efficiency_and_curves(obj) }
model.getCoilHeatingGasMultiStages.each { |obj| coil_heating_gas_multi_stage_apply_efficiency_and_curves(obj) }
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Finished applying HVAC efficiency standards for #{template} template.")
return true
end
# Applies daylighting controls to each space in the model per the standard.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Boolean] returns true if successful, false if not
def model_add_daylighting_controls(model)
OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', 'Started adding daylighting controls.')
# Add daylighting controls to each space
model.getSpaces.sort.each do |space|
added = space_add_daylighting_controls(space, true, false)
end
OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', 'Finished adding daylighting controls.')
return true
end
# For backward compatibility, infiltration standard not used for 2013 and earlier
#
# @return [Boolean] true if successful, false if not
def model_apply_standard_infiltration(model, specific_space_infiltration_rate_75_pa = nil)
return true
end
# Apply the air leakage requirements to the model, as described in PNNL section 5.2.1.6.
# This method creates customized infiltration objects for each space
# and removes the SpaceType-level infiltration objects.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Boolean] returns true if successful, false if not
# @todo This infiltration method is not used by the Reference buildings, fix this inconsistency.
def model_apply_infiltration_standard(model)
# Set the infiltration rate at each space
model.getSpaces.sort.each do |space|
space_apply_infiltration_rate(space)
end
# Remove infiltration rates set at the space type
model.getSpaceTypes.sort.each do |space_type|
space_type.spaceInfiltrationDesignFlowRates.each(&:remove)
end
return true
end
# Method to search through a hash for the objects that meets the desired search criteria, as passed via a hash.
# Returns an Array (empty if nothing found) of matching objects.
#
# @param hash_of_objects [Hash] hash of objects to search through
# @param search_criteria [Hash] hash of search criteria
# @param capacity [Double] capacity of the object in question. If capacity is supplied,
# the objects will only be returned if the specified capacity is between the minimum_capacity and maximum_capacity values.
# @param date [<OpenStudio::Date>] date of the object in question. If date is supplied,
# the objects will only be returned if the specified date is between the start_date and end_date.
# @param area [Double] area of the object in question. If area is supplied,
# the objects will only be returned if the specified area is between the minimum_area and maximum_area values.
# @param num_floors [Double] capacity of the object in question. If num_floors is supplied,
# the objects will only be returned if the specified num_floors is between the minimum_floors and maximum_floors values.
# @param fan_motor_bhp [Double] fan motor brake horsepower.
# @param volume [Double] Equipment storage capacity in gallons.
# @param capacity_per_volume [Double] Equipment capacity per storage capacity in Btu/h/gal.
# @return [Array] returns an array of hashes, one hash per object. Array is empty if no results.
# @example Find all the schedule rules that match the name
# rules = model_find_objects(standards_data['schedules'], 'name' => schedule_name)
# if rules.empty?
# OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Cannot find data for schedule: #{schedule_name}, will not be created.")
# return false
# end
def model_find_objects(hash_of_objects, search_criteria, capacity = nil, date = nil, area = nil, num_floors = nil, fan_motor_bhp = nil, volume = nil, capacity_per_volume = nil)
matching_objects = []
if hash_of_objects.is_a?(Hash) && hash_of_objects.key?('table')
hash_of_objects = hash_of_objects['table']
end
# Compare each of the objects against the search criteria
raise("This is not a table #{hash_of_objects}") unless hash_of_objects.respond_to?(:each)
hash_of_objects.each do |object|
meets_all_search_criteria = true
search_criteria.each do |key, value|
# Don't check non-existent search criteria
next unless object.key?(key)
# Stop as soon as one of the search criteria is not met
# 'Any' is a special key that matches anything
unless object[key] == value || object[key] == 'Any'
meets_all_search_criteria = false
break
end
end
# Skip objects that don't meet all search criteria
next unless meets_all_search_criteria
# If made it here, object matches all search criteria
matching_objects << object
end
# If capacity was specified, narrow down the matching objects
unless capacity.nil?
# Skip objects that don't have fields for minimum_capacity and maximum_capacity
matching_objects = matching_objects.reject { |object| !object.key?('minimum_capacity') || !object.key?('maximum_capacity') }
# Skip objects that don't have values specified for minimum_capacity and maximum_capacity
matching_objects = matching_objects.reject { |object| object['minimum_capacity'].nil? || object['maximum_capacity'].nil? }
# Convert to a float in case not already
capacity = capacity.to_f
# Skip objects whose the minimum capacity is below or maximum capacity above the specified capacity
matching_capacity_objects = matching_objects.reject { |object| capacity <= object['minimum_capacity'].to_f || capacity > object['maximum_capacity'].to_f }
# If no object was found, round the capacity down in case the number fell between the limits in the json file.
if matching_capacity_objects.empty?
capacity *= 0.99
# Skip objects whose minimum capacity is below or maximum capacity above the specified capacity
matching_objects = matching_objects.reject { |object| capacity <= object['minimum_capacity'].to_f || capacity > object['maximum_capacity'].to_f }
else
matching_objects = matching_capacity_objects
end
end
# If volume was specified, narrow down the matching objects
unless volume.nil?
# Skip objects that don't have fields for minimum_storage and maximum_storage
matching_objects = matching_objects.reject { |object| !object.key?('minimum_storage') || !object.key?('maximum_storage') }
# Skip objects that don't have values specified for minimum_storage and maximum_storage
matching_objects = matching_objects.reject { |object| object['minimum_storage'].nil? || object['maximum_storage'].nil? }
# Skip objects whose the minimum volume is below or maximum volume above the specified volume
matching_volume_objects = matching_objects.reject { |object| volume.to_f < object['minimum_storage'].to_f || volume.to_f > object['maximum_storage'].to_f }
# If no object was found, round the volume down in case the number fell between the limits in the json file.
if matching_volume_objects.empty?
volume *= 0.99
# Skip objects whose minimum volume is below or maximum volume above the specified volume
matching_objects = matching_objects.reject { |object| volume.to_f <= object['minimum_storage'].to_f || volume.to_f >= object['maximum_storage'].to_f }
else
matching_objects = matching_volume_objects
end
end
# If capacity_per_volume was specified, narrow down the matching objects
unless capacity_per_volume.nil?
# Skip objects that don't have fields for minimum_capacity_per_storage and maximum_capacity_per_storage
matching_objects = matching_objects.reject { |object| !object.key?('minimum_capacity_per_storage') || !object.key?('maximum_capacity_per_storage') }
# Skip objects that don't have values specified for minimum_capacity_per_storage and maximum_capacity_per_storage
matching_objects = matching_objects.reject { |object| object['minimum_capacity_per_storage'].nil? || object['maximum_capacity_per_storage'].nil? }
# Skip objects whose the minimum capacity_per_volume is below or maximum capacity_per_volume above the specified capacity_per_volume
matching_capacity_per_volume_objects = matching_objects.reject { |object| capacity_per_volume.to_f <= object['minimum_capacity_per_storage'].to_f || capacity_per_volume.to_f >= object['maximum_capacity_per_storage'].to_f }
# If no object was found, round the volume down in case the number fell between the limits in the json file.
if matching_capacity_per_volume_objects.empty?
capacity_per_volume *= 0.99
# Skip objects whose minimum capacity_per_volume is below or maximum capacity_per_volume above the specified capacity_per_volume
matching_objects = matching_objects.reject { |object| capacity_per_volume.to_f <= object['minimum_capacity_per_storage'].to_f || capacity_per_volume.to_f >= object['maximum_capacity_per_storage'].to_f }
else
matching_objects = matching_capacity_per_volume_objects
end
end
# If fan_motor_bhp was specified, narrow down the matching objects
unless fan_motor_bhp.nil?
# Skip objects that don't have fields for minimum_capacity and maximum_capacity
matching_objects = matching_objects.reject { |object| !object.key?('minimum_capacity') || !object.key?('maximum_capacity') }
# Skip objects that don't have values specified for minimum_capacity and maximum_capacity
matching_objects = matching_objects.reject { |object| object['minimum_capacity'].nil? || object['maximum_capacity'].nil? }
# Skip objects whose the minimum capacity is below or maximum capacity above the specified fan_motor_bhp
matching_capacity_objects = matching_objects.reject { |object| fan_motor_bhp.to_f <= object['minimum_capacity'].to_f || fan_motor_bhp.to_f > object['maximum_capacity'].to_f }
# Filter based on motor type
matching_capacity_objects = matching_capacity_objects.select { |object| object['type'].downcase == search_criteria['type'].downcase } if search_criteria.keys.include?('type')
# If no object was found, round the fan_motor_bhp down in case the number fell between the limits in the json file.
if matching_capacity_objects.empty?
fan_motor_bhp *= 0.99
# Skip objects whose minimum capacity is below or maximum capacity above the specified fan_motor_bhp
matching_objects = matching_objects.reject { |object| fan_motor_bhp.to_f <= object['minimum_capacity'].to_f || fan_motor_bhp.to_f > object['maximum_capacity'].to_f }
else
matching_objects = matching_capacity_objects
end
end
# If date was specified, narrow down the matching objects
unless date.nil?
# Skip objects that don't have fields for start_date and end_date
matching_objects = matching_objects.reject { |object| !object.key?('start_date') || !object.key?('end_date') }
# Skip objects whose start date is earlier than the specified date
matching_objects = matching_objects.reject { |object| date <= Date.parse(object['start_date']) }
# Skip objects whose end date is later than the specified date
matching_objects = matching_objects.reject { |object| date > Date.parse(object['end_date']) }
end
# If area was specified, narrow down the matching objects
unless area.nil?
# Skip objects that don't have fields for minimum_area and maximum_area
matching_objects = matching_objects.reject { |object| !object.key?('minimum_area') || !object.key?('maximum_area') }
# Skip objects that don't have values specified for minimum_area and maximum_area
matching_objects = matching_objects.reject { |object| object['minimum_area'].nil? || object['maximum_area'].nil? }
# Skip objects whose minimum area is below or maximum area is above area
matching_objects = matching_objects.reject { |object| area.to_f <= object['minimum_area'].to_f || area.to_f > object['maximum_area'].to_f }
end
# If area was specified, narrow down the matching objects
unless num_floors.nil?
# Skip objects that don't have fields for minimum_floors and maximum_floors
matching_objects = matching_objects.reject { |object| !object.key?('minimum_floors') || !object.key?('maximum_floors') }
# Skip objects that don't have values specified for minimum_floors and maximum_floors
matching_objects = matching_objects.reject { |object| object['minimum_floors'].nil? || object['maximum_floors'].nil? }
# Skip objects whose minimum floors is below or maximum floors is above num_floors
matching_objects = matching_objects.reject { |object| num_floors.to_f < object['minimum_floors'].to_f || num_floors.to_f > object['maximum_floors'].to_f }
end
# Check the number of matching objects found
if matching_objects.empty?
OpenStudio.logFree(OpenStudio::Debug, 'openstudio.standards.Model', "Find objects search criteria returned no results. Search criteria: #{search_criteria}. Called from #{caller(0)[1]}.")
end
return matching_objects
end
# Method to search through a hash for an object that meets the desired search criteria, as passed via a hash.
# If capacity is supplied, the object will only be returned if the specified capacity is between the minimum_capacity and maximum_capacity values.
#
# @param hash_of_objects [Hash] hash of objects to search through
# @param search_criteria [Hash] hash of search criteria
# @param capacity [Double] capacity of the object in question. If capacity is supplied,
# the objects will only be returned if the specified capacity is between the minimum_capacity and maximum_capacity values.
# @param date [<OpenStudio::Date>] date of the object in question. If date is supplied,
# the objects will only be returned if the specified date is between the start_date and end_date.
# @param area [Double] area of the object in question. If area is supplied,
# the objects will only be returned if the specified area is between the minimum_area and maximum_area values.
# @param num_floors [Double] capacity of the object in question. If num_floors is supplied,
# the objects will only be returned if the specified num_floors is between the minimum_floors and maximum_floors values.
# @return [Hash] Return tbe first matching object hash if successful, nil if not.
# @example Find the motor that meets these size criteria
# search_criteria = {
# 'template' => template,
# 'number_of_poles' => 4.0,
# 'type' => 'Enclosed',
# }
# motor_properties = self.model.find_object(motors, search_criteria, capacity: 2.5)
def model_find_object(hash_of_objects, search_criteria, capacity = nil, date = nil, area = nil, num_floors = nil, fan_motor_bhp = nil, volume = nil, capacity_per_volume = nil)
matching_objects = model_find_objects(hash_of_objects, search_criteria, capacity, date, area, num_floors, fan_motor_bhp, volume, capacity_per_volume)
# Check the number of matching objects found
if matching_objects.empty?
desired_object = nil
OpenStudio.logFree(OpenStudio::Debug, 'openstudio.standards.Model', "Find object search criteria returned no results. Search criteria: #{search_criteria}. Called from #{caller(0)[1]}")
elsif matching_objects.size == 1
desired_object = matching_objects[0]
else
desired_object = matching_objects[0]
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', "Find object search criteria returned #{matching_objects.size} results, the first one will be returned. Called from #{caller(0)[1]}. \n Search criteria: \n #{search_criteria}, capacity = #{capacity} \n All results: \n #{matching_objects.join("\n")}")
end
return desired_object
end
# Method to search through a hash for the objects that meets the desired search criteria, as passed via a hash.
# Returns an Array (empty if nothing found) of matching objects.
#
# @param table_name [Hash] name of table in standards database.
# @param search_criteria [Hash] hash of search criteria
# @param capacity [Double] capacity of the object in question. If capacity is supplied,
# the objects will only be returned if the specified capacity is between the minimum_capacity and maximum_capacity values.
# @param date [<OpenStudio::Date>] date of the object in question. If date is supplied,
# the objects will only be returned if the specified date is between the start_date and end_date.
# @param area [Double] area of the object in question. If area is supplied,
# the objects will only be returned if the specified area is between the minimum_area and maximum_area values.
# @param num_floors [Double] capacity of the object in question. If num_floors is supplied,
# the objects will only be returned if the specified num_floors is between the minimum_floors and maximum_floors values.
# @return [Array] returns an array of hashes, one hash per object. Array is empty if no results.
# @example Find all the schedule rules that match the name
# rules = model_find_objects(standards_data['schedules'], 'name' => schedule_name)
# if rules.empty?
# OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Cannot find data for schedule: #{schedule_name}, will not be created.")
# return false
# end
def standards_lookup_table_many(table_name:, search_criteria: {}, capacity: nil, date: nil, area: nil, num_floors: nil)
desired_object = nil
search_criteria_matching_objects = []
matching_objects = []
hash_of_objects = @standards_data[table_name]
# needed for NRCan data structure compatibility. We keep all tables in a 'tables' hash in @standards_data and the table
# itself is in the 'table' hash index.
if hash_of_objects.nil?
# Format of @standards_data is not NRCan-style and table simply doesn't exist.
return matching_objects if @standards_data['tables'].nil?
table = @standards_data['tables'][table_name]['table']
hash_of_objects = table
end
# Compare each of the objects against the search criteria
hash_of_objects.each do |object|
meets_all_search_criteria = true
search_criteria.each do |key, value|
# Don't check non-existent search criteria
next unless object.key?(key)
# Stop as soon as one of the search criteria is not met
# 'Any' is a special key that matches anything
unless object[key] == value || object[key] == 'Any'
meets_all_search_criteria = false
break
end
end
# Skip objects that don't meet all search criteria
next unless meets_all_search_criteria
# If made it here, object matches all search criteria
matching_objects << object
end
# If capacity was specified, narrow down the matching objects
unless capacity.nil?
# Skip objects that don't have fields for minimum_capacity and maximum_capacity
matching_objects = matching_objects.reject { |object| !object.key?('minimum_capacity') || !object.key?('maximum_capacity') }
# Skip objects that don't have values specified for minimum_capacity and maximum_capacity
matching_objects = matching_objects.reject { |object| object['minimum_capacity'].nil? || object['maximum_capacity'].nil? }
# Convert to a float in case not already
capacity = capacity.to_f
# Skip objects whose the minimum capacity is below or maximum capacity above the specified capacity
matching_capacity_objects = matching_objects.reject { |object| capacity <= object['minimum_capacity'].to_f || capacity > object['maximum_capacity'].to_f }
# If no object was found, round the capacity down in case the number fell between the limits in the json file.
if matching_capacity_objects.empty?
capacity *= 0.99
search_criteria_matching_objects.each do |object|
# Skip objects that don't have fields for minimum_capacity and maximum_capacity
next if !object.key?('minimum_capacity') || !object.key?('maximum_capacity')
# Skip objects that don't have values specified for minimum_capacity and maximum_capacity
next if object['minimum_capacity'].nil? || object['maximum_capacity'].nil?
# Skip objects whose the minimum capacity is below the specified capacity
next if capacity <= object['minimum_capacity'].to_f
# Skip objects whose max
next if capacity > object['maximum_capacity'].to_f
# Found a matching object
matching_objects << object
end
end
# If date was specified, narrow down the matching objects
unless date.nil?
date_matching_objects = []
matching_objects.each do |object|
# Skip objects that don't have fields for minimum_capacity and maximum_capacity
next if !object.key?('start_date') || !object.key?('end_date')
# Skip objects whose the start date is earlier than the specified date
next if date <= Date.parse(object['start_date'])
# Skip objects whose end date is beyond the specified date
next if date > Date.parse(object['end_date'])
# Found a matching object
date_matching_objects << object
end
matching_objects = date_matching_objects
end
end
# If area was specified, narrow down the matching objects
unless area.nil?
# Skip objects that don't have fields for minimum_area and maximum_area
matching_objects = matching_objects.reject { |object| !object.key?('minimum_area') || !object.key?('maximum_area') }
# Skip objects that don't have values specified for minimum_area and maximum_area
matching_objects = matching_objects.reject { |object| object['minimum_area'].nil? || object['maximum_area'].nil? }
# Skip objects whose minimum area is below or maximum area is above area
matching_objects = matching_objects.reject { |object| area.to_f <= object['minimum_area'].to_f || area.to_f > object['maximum_area'].to_f }
end
# If area was specified, narrow down the matching objects
unless num_floors.nil?
# Skip objects that don't have fields for minimum_floors and maximum_floors
matching_objects = matching_objects.reject { |object| !object.key?('minimum_floors') || !object.key?('maximum_floors') }
# Skip objects that don't have values specified for minimum_floors and maximum_floors
matching_objects = matching_objects.reject { |object| object['minimum_floors'].nil? || object['maximum_floors'].nil? }
# Skip objects whose minimum floors is below or maximum floors is above num_floors
matching_objects = matching_objects.reject { |object| num_floors.to_f < object['minimum_floors'].to_f || num_floors.to_f > object['maximum_floors'].to_f }
end
# Check the number of matching objects found
if matching_objects.empty?
OpenStudio.logFree(OpenStudio::Debug, 'openstudio.standards.Model', "Find objects search criteria returned no results. Search criteria: #{search_criteria}. Called from #{caller(0)[1]}.")
end
return matching_objects
end
# Method to search through a hash for an object that meets the desired search criteria, as passed via a hash.
# If capacity is supplied, the object will only be returned if the specified capacity is between the minimum_capacity and maximum_capacity values.
#
# @param table_name [String] name of table
# @param search_criteria [Hash] hash of search criteria
# @param capacity [Double] capacity of the object in question. If capacity is supplied,
# the objects will only be returned if the specified capacity is between the minimum_capacity and maximum_capacity values.
# @param date [<OpenStudio::Date>] date of the object in question. If date is supplied,
# the objects will only be returned if the specified date is between the start_date and end_date.
# @return [Hash] Return tbe first matching object hash if successful, nil if not.
# @example Find the motor that meets these size criteria
# search_criteria = {
# 'template' => template,
# 'number_of_poles' => 4.0,
# 'type' => 'Enclosed',
# }
# motor_properties = self.model.find_object(motors, search_criteria, 2.5)
def standards_lookup_table_first(table_name:, search_criteria: {}, capacity: nil, date: nil)
# run the many version of the look up code...DRY.
matching_objects = standards_lookup_table_many(table_name: table_name,
search_criteria: search_criteria,
capacity: capacity,
date: date)
# Check the number of matching objects found
if matching_objects.empty?
desired_object = nil
OpenStudio.logFree(OpenStudio::Debug, 'openstudio.standards.Model', "Find object search criteria returned no results. Search criteria: #{search_criteria}. Called from #{caller(0)[1]}")
elsif matching_objects.size == 1
desired_object = matching_objects[0]
else
desired_object = matching_objects[0]
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', "Find object search criteria returned #{matching_objects.size} results, the first one will be returned. Called from #{caller(0)[1]}. \n Search criteria: \n #{search_criteria}, capacity = #{capacity} \n All results: \n#{matching_objects.join("\n")}")
end
return desired_object
end
# Create a schedule from the openstudio standards dataset and add it to the model.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param schedule_name [String} name of the schedule
# @return [ScheduleRuleset] the resulting schedule ruleset
# @todo make return an OptionalScheduleRuleset
def model_add_schedule(model, schedule_name)
return nil if schedule_name.nil? || schedule_name == ''
# First check model and return schedule if it already exists
model.getSchedules.sort.each do |schedule|
if schedule.name.get.to_s == schedule_name
OpenStudio.logFree(OpenStudio::Debug, 'openstudio.standards.Model', "Already added schedule: #{schedule_name}")
return schedule
end
end
require 'date'
# OpenStudio::logFree(OpenStudio::Info, 'openstudio.standards.Model', "Adding schedule: #{schedule_name}")
# Find all the schedule rules that match the name
rules = model_find_objects(standards_data['schedules'], 'name' => schedule_name)
if rules.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Cannot find data for schedule: #{schedule_name}, will not be created.")
return model.alwaysOnDiscreteSchedule
end
# Make a schedule ruleset
sch_ruleset = OpenStudio::Model::ScheduleRuleset.new(model)
sch_ruleset.setName(schedule_name.to_s)
# Loop through the rules, making one for each row in the spreadsheet
rules.each do |rule|
day_types = rule['day_types']
start_date = DateTime.parse(rule['start_date'])
end_date = DateTime.parse(rule['end_date'])
sch_type = rule['type']
values = rule['values']
# Day Type choices: Wkdy, Wknd, Mon, Tue, Wed, Thu, Fri, Sat, Sun, WntrDsn, SmrDsn, Hol
# Default
if day_types.include?('Default')
day_sch = sch_ruleset.defaultDaySchedule
day_sch.setName("#{schedule_name} Default")
model_add_vals_to_sch(model, day_sch, sch_type, values)
if model.version < OpenStudio::VersionString.new('3.8.0')
day_sch.setInterpolatetoTimestep(false)
else
day_sch.setInterpolatetoTimestep('No')
end
end
# Winter Design Day
if day_types.include?('WntrDsn')
day_sch = OpenStudio::Model::ScheduleDay.new(model)
sch_ruleset.setWinterDesignDaySchedule(day_sch)
day_sch = sch_ruleset.winterDesignDaySchedule
day_sch.setName("#{schedule_name} Winter Design Day")
model_add_vals_to_sch(model, day_sch, sch_type, values)
if model.version < OpenStudio::VersionString.new('3.8.0')
day_sch.setInterpolatetoTimestep(false)
else
day_sch.setInterpolatetoTimestep('No')
end
end
# Summer Design Day
if day_types.include?('SmrDsn')
day_sch = OpenStudio::Model::ScheduleDay.new(model)
sch_ruleset.setSummerDesignDaySchedule(day_sch)
day_sch = sch_ruleset.summerDesignDaySchedule
day_sch.setName("#{schedule_name} Summer Design Day")
model_add_vals_to_sch(model, day_sch, sch_type, values)
if model.version < OpenStudio::VersionString.new('3.8.0')
day_sch.setInterpolatetoTimestep(false)
else
day_sch.setInterpolatetoTimestep('No')
end
end
# Other days (weekdays, weekends, etc)
if day_types.include?('Wknd') ||
day_types.include?('Wkdy') ||
day_types.include?('Sat') ||
day_types.include?('Sun') ||
day_types.include?('Mon') ||
day_types.include?('Tue') ||
day_types.include?('Wed') ||
day_types.include?('Thu') ||
day_types.include?('Fri')
# Make the Rule
sch_rule = OpenStudio::Model::ScheduleRule.new(sch_ruleset)
day_sch = sch_rule.daySchedule
day_sch.setName("#{schedule_name} #{day_types} Day")
model_add_vals_to_sch(model, day_sch, sch_type, values)
if model.version < OpenStudio::VersionString.new('3.8.0')
day_sch.setInterpolatetoTimestep(false)
else
day_sch.setInterpolatetoTimestep('No')
end
# Set the dates when the rule applies
sch_rule.setStartDate(OpenStudio::Date.new(OpenStudio::MonthOfYear.new(start_date.month.to_i), start_date.day.to_i))
sch_rule.setEndDate(OpenStudio::Date.new(OpenStudio::MonthOfYear.new(end_date.month.to_i), end_date.day.to_i))
# Set the days when the rule applies
# Weekends
if day_types.include?('Wknd')
sch_rule.setApplySaturday(true)
sch_rule.setApplySunday(true)
end
# Weekdays
if day_types.include?('Wkdy')
sch_rule.setApplyMonday(true)
sch_rule.setApplyTuesday(true)
sch_rule.setApplyWednesday(true)
sch_rule.setApplyThursday(true)
sch_rule.setApplyFriday(true)
end
# Individual Days
sch_rule.setApplyMonday(true) if day_types.include?('Mon')
sch_rule.setApplyTuesday(true) if day_types.include?('Tue')
sch_rule.setApplyWednesday(true) if day_types.include?('Wed')
sch_rule.setApplyThursday(true) if day_types.include?('Thu')
sch_rule.setApplyFriday(true) if day_types.include?('Fri')
sch_rule.setApplySaturday(true) if day_types.include?('Sat')
sch_rule.setApplySunday(true) if day_types.include?('Sun')
end
end
return sch_ruleset
end
# Create a material from the openstudio standards dataset.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param material_name [String] name of the material
# @return [OpenStudio::Model::Material] material object
def model_add_material(model, material_name)
# First check model and return material if it already exists
model.getMaterials.sort.each do |material|
if material.name.get.to_s == material_name
OpenStudio.logFree(OpenStudio::Debug, 'openstudio.standards.Model', "Already added material: #{material_name}")
return material
end
end
# Get the object data
# For Simple Glazing materials:
# Attempt to get properties from the name of the material
material_type = nil
if material_name.downcase.include?('simple glazing')
material_type = 'SimpleGlazing'
u_factor = nil
shgc = nil
vt = nil
material_name.split.each_with_index do |item, i|
prop_value = material_name.split[i + 1].to_f
case item
when 'U'
unless u_factor.nil?
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', "Multiple U-Factor values have been identified for #{material_name}: previous = #{u_factor}, new = #{prop_value}. Please check the material name. New U-Factor will be used.")
end
u_factor = prop_value
when 'SHGC'
unless shgc.nil?
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', "Multiple SHGC values have been identified for #{material_name}: previous = #{shgc}, new = #{prop_value}. Please check the material name. New SHGC will be used.")
end
shgc = prop_value
when 'VT'
unless vt.nil?
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', "Multiple VT values have been identified for #{material_name}: previous = #{vt}, new = #{prop_value}. Please check the material name. New SHGC will be used.")
end
vt = prop_value
end
end
if u_factor.nil? && shgc.nil? && vt.nil?
material_type = nil
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', "Properties of the simple glazing material named #{material_name} could not be identified from its name.")
else
if u_factor.nil?
u_factor = 1.23
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', "Cannot find the U-Factor for the simple glazing material named #{material_name}, a default value of 1.23 is used.")
end
if shgc.nil?
shgc = 0.61
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', "Cannot find the SHGC for the simple glazing material named #{material_name}, a default value of 0.61 is used.")
end
if vt.nil?
vt = 0.81
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', "Cannot find the VT for the simple glazing material named #{material_name}, a default value of 0.81 is used.")
end
end
end
# If no properties could be found or the material
# is not of the simple glazing type, search the database
if material_type.nil?
data = model_find_object(standards_data['materials'], 'name' => material_name)
unless data
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', "Cannot find data for material: #{material_name}, will not be created.")
return OpenStudio::Model::OptionalMaterial.new
end
material_type = data['material_type']
end
material = nil
case material_type
when 'StandardOpaqueMaterial'
material = OpenStudio::Model::StandardOpaqueMaterial.new(model)
material.setName(material_name)
material.setRoughness(data['roughness'].to_s)
material.setThickness(OpenStudio.convert(data['thickness'].to_f, 'in', 'm').get)
material.setThermalConductivity(OpenStudio.convert(data['conductivity'].to_f, 'Btu*in/hr*ft^2*R', 'W/m*K').get)
material.setDensity(OpenStudio.convert(data['density'].to_f, 'lb/ft^3', 'kg/m^3').get)
material.setSpecificHeat(OpenStudio.convert(data['specific_heat'].to_f, 'Btu/lb*R', 'J/kg*K').get)
material.setThermalAbsorptance(data['thermal_absorptance'].to_f)
material.setSolarAbsorptance(data['solar_absorptance'].to_f)
material.setVisibleAbsorptance(data['visible_absorptance'].to_f)
when 'MasslessOpaqueMaterial'
material = OpenStudio::Model::MasslessOpaqueMaterial.new(model)
material.setName(material_name)
material.setThermalResistance(OpenStudio.convert(data['resistance'].to_f, 'hr*ft^2*R/Btu', 'm^2*K/W').get)
material.setThermalConductivity(OpenStudio.convert(data['conductivity'].to_f, 'Btu*in/hr*ft^2*R', 'W/m*K').get)
material.setThermalAbsorptance(data['thermal_absorptance'].to_f)
material.setSolarAbsorptance(data['solar_absorptance'].to_f)
material.setVisibleAbsorptance(data['visible_absorptance'].to_f)
when 'AirGap'
material = OpenStudio::Model::AirGap.new(model)
material.setName(material_name)
material.setThermalResistance(OpenStudio.convert(data['resistance'].to_f, 'hr*ft^2*R/Btu*in', 'm*K/W').get)
when 'Gas'
material = OpenStudio::Model::Gas.new(model)
material.setName(material_name)
material.setThickness(OpenStudio.convert(data['thickness'].to_f, 'in', 'm').get)
material.setGasType(data['gas_type'].to_s)
when 'SimpleGlazing'
material = OpenStudio::Model::SimpleGlazing.new(model)
material.setName(material_name)
material.setUFactor(OpenStudio.convert(u_factor.to_f, 'Btu/hr*ft^2*R', 'W/m^2*K').get)
material.setSolarHeatGainCoefficient(shgc.to_f)
material.setVisibleTransmittance(vt.to_f)
when 'StandardGlazing'
material = OpenStudio::Model::StandardGlazing.new(model)
material.setName(material_name)
material.setOpticalDataType(data['optical_data_type'].to_s)
material.setThickness(OpenStudio.convert(data['thickness'].to_f, 'in', 'm').get)
material.setSolarTransmittanceatNormalIncidence(data['solar_transmittance_at_normal_incidence'].to_f)
material.setFrontSideSolarReflectanceatNormalIncidence(data['front_side_solar_reflectance_at_normal_incidence'].to_f)
material.setBackSideSolarReflectanceatNormalIncidence(data['back_side_solar_reflectance_at_normal_incidence'].to_f)
material.setVisibleTransmittanceatNormalIncidence(data['visible_transmittance_at_normal_incidence'].to_f)
material.setFrontSideVisibleReflectanceatNormalIncidence(data['front_side_visible_reflectance_at_normal_incidence'].to_f)
material.setBackSideVisibleReflectanceatNormalIncidence(data['back_side_visible_reflectance_at_normal_incidence'].to_f)
material.setInfraredTransmittanceatNormalIncidence(data['infrared_transmittance_at_normal_incidence'].to_f)
material.setFrontSideInfraredHemisphericalEmissivity(data['front_side_infrared_hemispherical_emissivity'].to_f)
material.setBackSideInfraredHemisphericalEmissivity(data['back_side_infrared_hemispherical_emissivity'].to_f)
material.setThermalConductivity(OpenStudio.convert(data['conductivity'].to_f, 'Btu*in/hr*ft^2*R', 'W/m*K').get)
material.setDirtCorrectionFactorforSolarandVisibleTransmittance(data['dirt_correction_factor_for_solar_and_visible_transmittance'].to_f)
if /true/i =~ data['solar_diffusing'].to_s
material.setSolarDiffusing(true)
else
material.setSolarDiffusing(false)
end
else
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Unknown material type #{material_type}, cannot add material called #{material_name}.")
exit
end
return material
end
# Create a construction from the openstudio standards dataset.
# If construction_props are specified, modifies the insulation layer accordingly.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param construction_name [String] name of the construction
# @param construction_props [Hash] hash of construction properties
# @return [OpenStudio::Model::Construction] construction object
# @todo make return an OptionalConstruction
def model_add_construction(model, construction_name, construction_props = nil, surface = nil)
# First check model and return construction if it already exists
model.getConstructions.sort.each do |construction|
if construction.name.get.to_s == construction_name
OpenStudio.logFree(OpenStudio::Debug, 'openstudio.standards.Model', "Already added construction: #{construction_name}")
return construction
end
end
OpenStudio.logFree(OpenStudio::Debug, 'openstudio.standards.Model', "Adding construction: #{construction_name}")
# Get the object data
if standards_data.keys.include?('prm_constructions')
data = model_find_object(standards_data['prm_constructions'], 'name' => construction_name)
else
data = model_find_object(standards_data['constructions'], 'name' => construction_name)
end
unless data
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', "Cannot find data for construction: #{construction_name}, will not be created.")
return OpenStudio::Model::OptionalConstruction.new
end
# Make a new construction and set the standards details
if data['intended_surface_type'] == 'GroundContactFloor' && !surface.nil?
construction = OpenStudio::Model::FFactorGroundFloorConstruction.new(model)
elsif data['intended_surface_type'] == 'GroundContactWall' && !surface.nil?
construction = OpenStudio::Model::CFactorUndergroundWallConstruction.new(model)
else
construction = OpenStudio::Model::Construction.new(model)
# Add the material layers to the construction
layers = OpenStudio::Model::MaterialVector.new
data['materials'].each do |material_name|
material = model_add_material(model, material_name)
if material
layers << material
end
end
construction.setLayers(layers)
end
construction.setName(construction_name)
standards_info = construction.standardsInformation
intended_surface_type = data['intended_surface_type']
intended_surface_type ||= ''
standards_info.setIntendedSurfaceType(intended_surface_type)
standards_construction_type = data['standards_construction_type']
standards_construction_type ||= ''
standards_info.setStandardsConstructionType(standards_construction_type)
# @todo could put construction rendering color in the spreadsheet
# Modify the R value of the insulation to hit the specified U-value, C-Factor, or F-Factor.
# Doesn't currently operate on glazing constructions
if construction_props
# Determine the target U-value, C-factor, and F-factor
target_u_value_ip = construction_props['assembly_maximum_u_value']
target_f_factor_ip = construction_props['assembly_maximum_f_factor']
target_c_factor_ip = construction_props['assembly_maximum_c_factor']
target_shgc = construction_props['assembly_maximum_solar_heat_gain_coefficient']
u_includes_int_film = construction_props['u_value_includes_interior_film_coefficient']
u_includes_ext_film = construction_props['u_value_includes_exterior_film_coefficient']
OpenStudio.logFree(OpenStudio::Debug, 'openstudio.standards.Model', "#{data['intended_surface_type']} u_val #{target_u_value_ip} f_fac #{target_f_factor_ip} c_fac #{target_c_factor_ip}")
if target_u_value_ip
# Handle Opaque and Fenestration Constructions differently
# if construction.isFenestration && OpenstudioStandards::Constructions.construction_simple_glazing?(construction)
if construction.isFenestration
if OpenstudioStandards::Constructions.construction_simple_glazing?(construction)
# Set the U-Value and SHGC
OpenstudioStandards::Constructions.construction_set_glazing_u_value(construction, target_u_value_ip.to_f,
target_includes_interior_film_coefficients: u_includes_int_film,
target_includes_exterior_film_coefficients: u_includes_ext_film)
simple_glazing = construction.layers.first.to_SimpleGlazing
unless simple_glazing.is_initialized && !target_shgc.nil?
simple_glazing.get.setSolarHeatGainCoefficient(target_shgc.to_f)
end
else # if !data['intended_surface_type'] == 'ExteriorWindow' && !data['intended_surface_type'] == 'Skylight'
# Set the U-Value
OpenstudioStandards::Constructions.construction_set_u_value(construction, target_u_value_ip.to_f,
insulation_layer_name: data['insulation_layer'],
intended_surface_type: data['intended_surface_type'],
target_includes_interior_film_coefficients: u_includes_int_film,
target_includes_exterior_film_coefficients: u_includes_ext_film)
# else
# OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Not modifying U-value for #{data['intended_surface_type']} u_val #{target_u_value_ip} f_fac #{target_f_factor_ip} c_fac #{target_c_factor_ip}")
end
else
# Set the U-Value
OpenstudioStandards::Constructions.construction_set_u_value(construction, target_u_value_ip.to_f,
insulation_layer_name: data['insulation_layer'],
intended_surface_type: data['intended_surface_type'],
target_includes_interior_film_coefficients: u_includes_int_film,
target_includes_exterior_film_coefficients: u_includes_ext_film)
# else
# OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Not modifying U-value for #{data['intended_surface_type']} u_val #{target_u_value_ip} f_fac #{target_f_factor_ip} c_fac #{target_c_factor_ip}")
end
elsif target_f_factor_ip && data['intended_surface_type'] == 'GroundContactFloor'
# F-factor objects are unique to each surface, so a surface needs to be passed
# If not surface is passed, use the older approach to model ground contact floors
if surface.nil?
# Set the F-Factor (only applies to slabs on grade)
# @todo figure out what the prototype buildings did about ground heat transfer
# OpenstudioStandards::Constructions.construction_set_slab_f_factor(construction, target_f_factor_ip.to_f, insulation_layer_name: data['insulation_layer'])
OpenstudioStandards::Constructions.construction_set_u_value(construction, 0.0,
insulation_layer_name: data['insulation_layer'],
intended_surface_type: data['intended_surface_type'],
target_includes_interior_film_coefficients: u_includes_int_film,
target_includes_exterior_film_coefficients: u_includes_ext_film)
else
OpenstudioStandards::Constructions.construction_set_surface_slab_f_factor(construction, target_f_factor_ip, surface)
end
elsif target_c_factor_ip && (data['intended_surface_type'] == 'GroundContactWall' || data['intended_surface_type'] == 'GroundContactRoof')
# C-factor objects are unique to each surface, so a surface needs to be passed
# If not surface is passed, use the older approach to model ground contact walls
if surface.nil?
# Set the C-Factor (only applies to underground walls)
# @todo figure out what the prototype buildings did about ground heat transfer
# OpenstudioStandards::Constructions.construction_set_underground_wall_c_factor(construction, target_c_factor_ip.to_f, insulation_layer_name: data['insulation_layer'])
OpenstudioStandards::Constructions.construction_set_u_value(construction, 0.0,
insulation_layer_name: data['insulation_layer'],
intended_surface_type: data['intended_surface_type'],
target_includes_interior_film_coefficients: u_includes_int_film,
target_includes_exterior_film_coefficients: u_includes_ext_film)
else
OpenstudioStandards::Constructions.construction_set_surface_underground_wall_c_factor(construction, target_c_factor_ip, surface)
end
end
# If the construction is fenestration,
# also set the frame type for use in future lookups
if construction.isFenestration
case standards_construction_type
when 'Metal framing (all other)'
standards_info.setFenestrationFrameType('Metal Framing')
when 'Nonmetal framing (all)'
standards_info.setFenestrationFrameType('Non-Metal Framing')
end
end
# If the construction has a skylight framing material specified,
# get the skylight frame material properties and add frame to
# all skylights in the model.
if data['skylight_framing']
# Get the skylight framing material
framing_name = data['skylight_framing']
frame_data = model_find_object(standards_data['materials'], 'name' => framing_name)
if frame_data
frame_width_in = frame_data['frame_width'].to_f
frame_with_m = OpenStudio.convert(frame_width_in, 'in', 'm').get
frame_resistance_ip = frame_data['resistance'].to_f
frame_resistance_si = OpenStudio.convert(frame_resistance_ip, 'hr*ft^2*R/Btu', 'm^2*K/W').get
frame_conductance_si = 1.0 / frame_resistance_si
frame = OpenStudio::Model::WindowPropertyFrameAndDivider.new(model)
frame.setName("Skylight frame R-#{frame_resistance_ip.round(2)} #{frame_width_in.round(1)} in. wide")
frame.setFrameWidth(frame_with_m)
frame.setFrameConductance(frame_conductance_si)
skylights_frame_added = 0
model.getSubSurfaces.each do |sub_surface|
next unless sub_surface.outsideBoundaryCondition == 'Outdoors' && sub_surface.subSurfaceType == 'Skylight'
if model.version < OpenStudio::VersionString.new('3.1.0')
# window frame setting before https://github.com/NREL/OpenStudio/issues/2895 was fixed
sub_surface.setString(8, frame.name.get.to_s)
skylights_frame_added += 1
else
if sub_surface.allowWindowPropertyFrameAndDivider
sub_surface.setWindowPropertyFrameAndDivider(frame)
skylights_frame_added += 1
else
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', "For #{sub_surface.name}: cannot add a frame to this skylight.")
end
end
end
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Adding #{frame.name} to #{skylights_frame_added} skylights.") if skylights_frame_added > 0
else
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', "Cannot find skylight framing data for: #{framing_name}, will not be created.")
return false
# @todo change to return empty optional material
end
end
end
# # Check if the construction with the modified name was already in the model.
# # If it was, delete this new construction and return the copy already in the model.
# m = construction.name.get.to_s.match(/\s(\d+)/)
# if m
# revised_cons_name = construction.name.get.to_s.gsub(/\s\d+/,'')
# model.getConstructions.sort.each do |exist_construction|
# if exist_construction.name.get.to_s == revised_cons_name
# OpenStudio.logFree(OpenStudio::Debug, 'openstudio.standards.Model', "Already added construction: #{construction_name}")
# # Remove the recently added construction
# lyrs = construction.layers
# # Erase the layers in the construction
# construction.setLayers([])
# # Delete unused materials
# lyrs.uniq.each do |lyr|
# if lyr.directUseCount.zero?
# OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', "Removing Material: #{lyr.name}")
# lyr.remove
# end
# end
# construction.remove # Remove the construction
# return exist_construction
# end
# end
# end
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Adding construction #{construction.name}.")
return construction
end
# Helper method to find a particular construction and add it to the model after modifying the insulation value if necessary.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param climate_zone_set [String] climate zone set
# @param intended_surface_type [String] intended surface type
# @param standards_construction_type [String] standards construction type
# @param building_category [String] building category
# @param wwr_building_type [String] building type used to determine WWR for the PRM baseline model
# @param wwr_info [Hash] @Todo - check what this is used for
# @param surface [OpenStudio::Model::Surface] OpenStudio surface object, only used for surface specific construction, e.g F/C-factor constructions
# @return [OpenStudio::Model::Construction] construction object
def model_find_and_add_construction(model, climate_zone_set, intended_surface_type, standards_construction_type, building_category, wwr_building_type: nil, wwr_info: {}, surface: nil)
# Get the construction properties,
# which specifies properties by construction category by climate zone set.
# AKA the info in Tables 5.5-1-5.5-8
search_criteria = { 'template' => template,
'climate_zone_set' => climate_zone_set,
'intended_surface_type' => intended_surface_type,
'standards_construction_type' => standards_construction_type,
'building_category' => building_category }
# Check if WWR criteria is needed for the construction search
wwr_parameter = { 'intended_surface_type' => intended_surface_type }
if wwr_building_type
wwr_parameter['wwr_building_type'] = wwr_building_type
wwr_parameter['wwr_info'] = wwr_info
end
wwr_range = model_get_percent_of_surface_range(model, wwr_parameter)
if !wwr_range['minimum_percent_of_surface'].nil? && !wwr_range['maximum_percent_of_surface'].nil?
search_criteria['minimum_percent_of_surface'] = wwr_range['minimum_percent_of_surface']
search_criteria['maximum_percent_of_surface'] = wwr_range['maximum_percent_of_surface']
end
# First search
props = model_find_object(standards_data['construction_properties'], search_criteria)
if !props
# Second search: In case need to use climate zone (e.g: 3) instead of sub-climate zone (e.g: 3A) for search
climate_zone = climate_zone_set[0..-2]
search_criteria['climate_zone_set'] = climate_zone
props = model_find_object(standards_data['construction_properties'], search_criteria)
end
if !props
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Could not find construction properties for: #{template}-#{climate_zone_set}-#{intended_surface_type}-#{standards_construction_type}-#{building_category}.")
# Return an empty construction
construction = OpenStudio::Model::Construction.new(model)
construction.setName('Could not find construction properties set to Adiabatic ')
almost_adiabatic = OpenStudio::Model::MasslessOpaqueMaterial.new(model, 'Smooth', 500)
construction.insertLayer(0, almost_adiabatic)
return construction
end
# Make sure that a construction is specified
if props['construction'].nil?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "No typical construction is specified for construction properties of: #{template}-#{climate_zone_set}-#{intended_surface_type}-#{standards_construction_type}-#{building_category}. Make sure it is entered in the spreadsheet.")
# Return an empty construction
construction = OpenStudio::Model::Construction.new(model)
construction.setName('No typical construction was specified')
return construction
end
# Add the construction, modifying properties as necessary
construction = model_add_construction(model, props['construction'], props, surface)
return construction
end
# Create a construction set from the openstudio standards dataset.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param climate_zone [String] ASHRAE climate zone, e.g. 'ASHRAE 169-2013-4A'
# @param building_type [String] the building type
# @param spc_type [String] the space type
# @param is_residential [Boolean] true if the building is residential
# @return [OpenStudio::Model::OptionalDefaultConstructionSet] an optional default construction set
def model_add_construction_set(model, climate_zone, building_type, spc_type, is_residential)
construction_set = OpenStudio::Model::OptionalDefaultConstructionSet.new
# Find the climate zone set that this climate zone falls into
climate_zone_set = model_find_climate_zone_set(model, climate_zone)
unless climate_zone_set
return construction_set
end
# Get the object data
data = model_find_object(standards_data['construction_sets'], 'template' => template, 'climate_zone_set' => climate_zone_set, 'building_type' => building_type, 'space_type' => spc_type, 'is_residential' => is_residential)
unless data
# Search again without the is_residential criteria in the case that this field is not specified for a standard
data = model_find_object(standards_data['construction_sets'], 'template' => template, 'climate_zone_set' => climate_zone_set, 'building_type' => building_type, 'space_type' => spc_type)
unless data
# if nothing matches say that we could not find it
OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', "Construction set for template =#{template}, climate zone set =#{climate_zone_set}, building type = #{building_type}, space type = #{spc_type}, is residential = #{is_residential} was not found in standards_data['construction_sets']")
return construction_set
end
end
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Adding construction set: #{template}-#{climate_zone}-#{building_type}-#{spc_type}-is_residential#{is_residential}")
name = model_make_name(model, climate_zone, building_type, spc_type)
# Create a new construction set and name it
construction_set = OpenStudio::Model::DefaultConstructionSet.new(model)
construction_set.setName(name)
# Exterior surfaces constructions
exterior_surfaces = OpenStudio::Model::DefaultSurfaceConstructions.new(model)
construction_set.setDefaultExteriorSurfaceConstructions(exterior_surfaces)
# Special condition for attics, where the insulation is actually on the floor but the soffit is uninsulated
if spc_type == 'Attic'
exterior_surfaces.setFloorConstruction(model_add_construction(model, 'Typical Attic Soffit'))
else
if data['exterior_floor_standards_construction_type'] && data['exterior_floor_building_category']
exterior_surfaces.setFloorConstruction(model_find_and_add_construction(model,
climate_zone_set,
'ExteriorFloor',
data['exterior_floor_standards_construction_type'],
data['exterior_floor_building_category']))
end
end
if data['exterior_wall_standards_construction_type'] && data['exterior_wall_building_category']
exterior_surfaces.setWallConstruction(model_find_and_add_construction(model,
climate_zone_set,
'ExteriorWall',
data['exterior_wall_standards_construction_type'],
data['exterior_wall_building_category']))
end
# Special condition for attics, where the insulation is actually on the floor and the roof itself is uninsulated
if spc_type == 'Attic'
if data['exterior_roof_standards_construction_type'] && data['exterior_roof_building_category']
exterior_surfaces.setRoofCeilingConstruction(model_add_construction(model, 'Typical Uninsulated Wood Joist Attic Roof'))
end
else
if data['exterior_roof_standards_construction_type'] && data['exterior_roof_building_category']
exterior_surfaces.setRoofCeilingConstruction(model_find_and_add_construction(model,
climate_zone_set,
'ExteriorRoof',
data['exterior_roof_standards_construction_type'],
data['exterior_roof_building_category']))
end
end
# Interior surfaces constructions
interior_surfaces = OpenStudio::Model::DefaultSurfaceConstructions.new(model)
construction_set.setDefaultInteriorSurfaceConstructions(interior_surfaces)
construction_name = data['interior_floors']
# Special condition for attics, where the insulation is actually on the floor and the roof itself is uninsulated
if spc_type == 'Attic'
if data['exterior_roof_standards_construction_type'] && data['exterior_roof_building_category']
interior_surfaces.setFloorConstruction(model_find_and_add_construction(model,
climate_zone_set,
'ExteriorRoof',
data['exterior_roof_standards_construction_type'],
data['exterior_roof_building_category']))
end
else
unless construction_name.nil?
interior_surfaces.setFloorConstruction(model_add_construction(model, construction_name))
end
end
construction_name = data['interior_walls']
unless construction_name.nil?
interior_surfaces.setWallConstruction(model_add_construction(model, construction_name))
end
construction_name = data['interior_ceilings']
unless construction_name.nil?
interior_surfaces.setRoofCeilingConstruction(model_add_construction(model, construction_name))
end
# Ground contact surfaces constructions
ground_surfaces = OpenStudio::Model::DefaultSurfaceConstructions.new(model)
construction_set.setDefaultGroundContactSurfaceConstructions(ground_surfaces)
if data['ground_contact_floor_standards_construction_type'] && data['ground_contact_floor_building_category']
ground_surfaces.setFloorConstruction(model_find_and_add_construction(model,
climate_zone_set,
'GroundContactFloor',
data['ground_contact_floor_standards_construction_type'],
data['ground_contact_floor_building_category']))
end
if data['ground_contact_wall_standards_construction_type'] && data['ground_contact_wall_building_category']
ground_surfaces.setWallConstruction(model_find_and_add_construction(model,
climate_zone_set,
'GroundContactWall',
data['ground_contact_wall_standards_construction_type'],
data['ground_contact_wall_building_category']))
end
if data['ground_contact_ceiling_standards_construction_type'] && data['ground_contact_ceiling_building_category']
ground_surfaces.setRoofCeilingConstruction(model_find_and_add_construction(model,
climate_zone_set,
'GroundContactRoof',
data['ground_contact_ceiling_standards_construction_type'],
data['ground_contact_ceiling_building_category']))
end
# Exterior sub surfaces constructions
exterior_subsurfaces = OpenStudio::Model::DefaultSubSurfaceConstructions.new(model)
construction_set.setDefaultExteriorSubSurfaceConstructions(exterior_subsurfaces)
if data['exterior_fixed_window_standards_construction_type'] && data['exterior_fixed_window_building_category']
exterior_subsurfaces.setFixedWindowConstruction(model_find_and_add_construction(model,
climate_zone_set,
'ExteriorWindow',
data['exterior_fixed_window_standards_construction_type'],
data['exterior_fixed_window_building_category']))
end
if data['exterior_operable_window_standards_construction_type'] && data['exterior_operable_window_building_category']
exterior_subsurfaces.setOperableWindowConstruction(model_find_and_add_construction(model,
climate_zone_set,
'ExteriorWindow',
data['exterior_operable_window_standards_construction_type'],
data['exterior_operable_window_building_category']))
end
if data['exterior_door_standards_construction_type'] && data['exterior_door_building_category']
exterior_subsurfaces.setDoorConstruction(model_find_and_add_construction(model,
climate_zone_set,
'ExteriorDoor',
data['exterior_door_standards_construction_type'],
data['exterior_door_building_category']))
end
if data['exterior_glass_door_standards_construction_type'] && data['exterior_glass_door_building_category']
exterior_subsurfaces.setGlassDoorConstruction(model_find_and_add_construction(model,
climate_zone_set,
'GlassDoor',
data['exterior_glass_door_standards_construction_type'],
data['exterior_glass_door_building_category']))
end
if data['exterior_overhead_door_standards_construction_type'] && data['exterior_overhead_door_building_category']
exterior_subsurfaces.setOverheadDoorConstruction(model_find_and_add_construction(model,
climate_zone_set,
'ExteriorDoor',
data['exterior_overhead_door_standards_construction_type'],
data['exterior_overhead_door_building_category']))
end
if data['exterior_skylight_standards_construction_type'] && data['exterior_skylight_building_category']
exterior_subsurfaces.setSkylightConstruction(model_find_and_add_construction(model,
climate_zone_set,
'Skylight',
data['exterior_skylight_standards_construction_type'],
data['exterior_skylight_building_category']))
end
if (construction_name = data['tubular_daylight_domes'])
exterior_subsurfaces.setTubularDaylightDomeConstruction(model_add_construction(model, construction_name))
end
if (construction_name = data['tubular_daylight_diffusers'])
exterior_subsurfaces.setTubularDaylightDiffuserConstruction(model_add_construction(model, construction_name))
end
# Interior sub surfaces constructions
interior_subsurfaces = OpenStudio::Model::DefaultSubSurfaceConstructions.new(model)
construction_set.setDefaultInteriorSubSurfaceConstructions(interior_subsurfaces)
if (construction_name = data['interior_fixed_windows'])
interior_subsurfaces.setFixedWindowConstruction(model_add_construction(model, construction_name))
end
if (construction_name = data['interior_operable_windows'])
interior_subsurfaces.setOperableWindowConstruction(model_add_construction(model, construction_name))
end
if (construction_name = data['interior_doors'])
interior_subsurfaces.setDoorConstruction(model_add_construction(model, construction_name))
end
# Other constructions
if (construction_name = data['interior_partitions'])
construction_set.setInteriorPartitionConstruction(model_add_construction(model, construction_name))
end
if (construction_name = data['space_shading'])
construction_set.setSpaceShadingConstruction(model_add_construction(model, construction_name))
end
if (construction_name = data['building_shading'])
construction_set.setBuildingShadingConstruction(model_add_construction(model, construction_name))
end
if (construction_name = data['site_shading'])
construction_set.setSiteShadingConstruction(model_add_construction(model, construction_name))
end
# componentize the construction set
# construction_set_component = construction_set.createComponent
# Return the construction set
return OpenStudio::Model::OptionalDefaultConstructionSet.new(construction_set)
end
# Adds a curve from the OpenStudio-Standards dataset to the model based on the curve name.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param curve_name [String] name of the curve
# @return [OpenStudio::Model::Curve] curve object, nil if not found
def model_add_curve(model, curve_name)
# First check model and return curve if it already exists
existing_curves = []
existing_curves += model.getCurveLinears
existing_curves += model.getCurveCubics
existing_curves += model.getCurveQuadratics
existing_curves += model.getCurveBicubics
existing_curves += model.getCurveBiquadratics
existing_curves += model.getCurveQuadLinears
existing_curves += model.getTableMultiVariableLookups
existing_curves += model.getTableLookups
existing_curves.sort.each do |curve|
if curve.name.get.to_s == curve_name
OpenStudio.logFree(OpenStudio::Debug, 'openstudio.standards.Model', "Already added curve: #{curve_name}")
return curve
end
end
# Find curve data
data = model_find_object(standards_data['curves'], 'name' => curve_name)
if data.nil?
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.Model.Model', "Could not find a curve called '#{curve_name}' in the standards.")
return nil
end
# Make the correct type of curve
case data['form']
when 'Linear'
curve = OpenStudio::Model::CurveLinear.new(model)
curve.setName(data['name'])
curve.setCoefficient1Constant(data['coeff_1'])
curve.setCoefficient2x(data['coeff_2'])
curve.setMinimumValueofx(data['minimum_independent_variable_1']) if data['minimum_independent_variable_1']
curve.setMaximumValueofx(data['maximum_independent_variable_1']) if data['maximum_independent_variable_1']
curve.setMinimumCurveOutput(data['minimum_dependent_variable_output']) if data['minimum_dependent_variable_output']
curve.setMaximumCurveOutput(data['maximum_dependent_variable_output']) if data['maximum_dependent_variable_output']
return curve
when 'Cubic'
curve = OpenStudio::Model::CurveCubic.new(model)
curve.setName(data['name'])
curve.setCoefficient1Constant(data['coeff_1'])
curve.setCoefficient2x(data['coeff_2'])
curve.setCoefficient3xPOW2(data['coeff_3'])
curve.setCoefficient4xPOW3(data['coeff_4'])
curve.setMinimumValueofx(data['minimum_independent_variable_1']) if data['minimum_independent_variable_1']
curve.setMaximumValueofx(data['maximum_independent_variable_1']) if data['maximum_independent_variable_1']
curve.setMinimumCurveOutput(data['minimum_dependent_variable_output']) if data['minimum_dependent_variable_output']
curve.setMaximumCurveOutput(data['maximum_dependent_variable_output']) if data['maximum_dependent_variable_output']
return curve
when 'Quadratic'
curve = OpenStudio::Model::CurveQuadratic.new(model)
curve.setName(data['name'])
curve.setCoefficient1Constant(data['coeff_1'])
curve.setCoefficient2x(data['coeff_2'])
curve.setCoefficient3xPOW2(data['coeff_3'])
curve.setMinimumValueofx(data['minimum_independent_variable_1']) if data['minimum_independent_variable_1']
curve.setMaximumValueofx(data['maximum_independent_variable_1']) if data['maximum_independent_variable_1']
curve.setMinimumCurveOutput(data['minimum_dependent_variable_output']) if data['minimum_dependent_variable_output']
curve.setMaximumCurveOutput(data['maximum_dependent_variable_output']) if data['maximum_dependent_variable_output']
return curve
when 'BiCubic'
curve = OpenStudio::Model::CurveBicubic.new(model)
curve.setName(data['name'])
curve.setCoefficient1Constant(data['coeff_1'])
curve.setCoefficient2x(data['coeff_2'])
curve.setCoefficient3xPOW2(data['coeff_3'])
curve.setCoefficient4y(data['coeff_4'])
curve.setCoefficient5yPOW2(data['coeff_5'])
curve.setCoefficient6xTIMESY(data['coeff_6'])
curve.setCoefficient7xPOW3(data['coeff_7'])
curve.setCoefficient8yPOW3(data['coeff_8'])
curve.setCoefficient9xPOW2TIMESY(data['coeff_9'])
curve.setCoefficient10xTIMESYPOW2(data['coeff_10'])
curve.setMinimumValueofx(data['minimum_independent_variable_1']) if data['minimum_independent_variable_1']
curve.setMaximumValueofx(data['maximum_independent_variable_1']) if data['maximum_independent_variable_1']
curve.setMinimumValueofy(data['minimum_independent_variable_2']) if data['minimum_independent_variable_2']
curve.setMaximumValueofy(data['maximum_independent_variable_2']) if data['maximum_independent_variable_2']
curve.setMinimumCurveOutput(data['minimum_dependent_variable_output']) if data['minimum_dependent_variable_output']
curve.setMaximumCurveOutput(data['maximum_dependent_variable_output']) if data['maximum_dependent_variable_output']
return curve
when 'BiQuadratic'
curve = OpenStudio::Model::CurveBiquadratic.new(model)
curve.setName(data['name'])
curve.setCoefficient1Constant(data['coeff_1'])
curve.setCoefficient2x(data['coeff_2'])
curve.setCoefficient3xPOW2(data['coeff_3'])
curve.setCoefficient4y(data['coeff_4'])
curve.setCoefficient5yPOW2(data['coeff_5'])
curve.setCoefficient6xTIMESY(data['coeff_6'])
curve.setMinimumValueofx(data['minimum_independent_variable_1']) if data['minimum_independent_variable_1']
curve.setMaximumValueofx(data['maximum_independent_variable_1']) if data['maximum_independent_variable_1']
curve.setMinimumValueofy(data['minimum_independent_variable_2']) if data['minimum_independent_variable_2']
curve.setMaximumValueofy(data['maximum_independent_variable_2']) if data['maximum_independent_variable_2']
curve.setMinimumCurveOutput(data['minimum_dependent_variable_output']) if data['minimum_dependent_variable_output']
curve.setMaximumCurveOutput(data['maximum_dependent_variable_output']) if data['maximum_dependent_variable_output']
return curve
when 'BiLinear'
curve = OpenStudio::Model::CurveBiquadratic.new(model)
curve.setName(data['name'])
curve.setCoefficient1Constant(data['coeff_1'])
curve.setCoefficient2x(data['coeff_2'])
curve.setCoefficient4y(data['coeff_3'])
curve.setMinimumValueofx(data['minimum_independent_variable_1']) if data['minimum_independent_variable_1']
curve.setMaximumValueofx(data['maximum_independent_variable_1']) if data['maximum_independent_variable_1']
curve.setMinimumValueofy(data['minimum_independent_variable_2']) if data['minimum_independent_variable_2']
curve.setMaximumValueofy(data['maximum_independent_variable_2']) if data['maximum_independent_variable_2']
curve.setMinimumCurveOutput(data['minimum_dependent_variable_output']) if data['minimum_dependent_variable_output']
curve.setMaximumCurveOutput(data['maximum_dependent_variable_output']) if data['maximum_dependent_variable_output']
return curve
when 'QuadLinear'
curve = OpenStudio::Model::CurveQuadLinear.new(model)
curve.setName(data['name'])
curve.setCoefficient1Constant(data['coeff_1'])
curve.setCoefficient2w(data['coeff_2'])
curve.setCoefficient3x(data['coeff_3'])
curve.setCoefficient4y(data['coeff_4'])
curve.setCoefficient5z(data['coeff_5'])
curve.setMinimumValueofw(data['minimum_independent_variable_w'])
curve.setMaximumValueofw(data['maximum_independent_variable_w'])
curve.setMinimumValueofx(data['minimum_independent_variable_x'])
curve.setMaximumValueofx(data['maximum_independent_variable_x'])
curve.setMinimumValueofy(data['minimum_independent_variable_y'])
curve.setMaximumValueofy(data['maximum_independent_variable_y'])
curve.setMinimumValueofz(data['minimum_independent_variable_z'])
curve.setMaximumValueofz(data['maximum_independent_variable_z'])
curve.setMinimumCurveOutput(data['minimum_dependent_variable_output'])
curve.setMaximumCurveOutput(data['maximum_dependent_variable_output'])
return curve
when 'TableLookup', 'LookupTable', 'TableMultiVariableLookup', 'MultiVariableLookupTable'
num_ind_var = data['number_independent_variables'].to_i
if model.version < OpenStudio::VersionString.new('3.7.0')
# Use TableMultiVariableLookup object
table = OpenStudio::Model::TableMultiVariableLookup.new(model, num_ind_var)
table.setInterpolationMethod(data['interpolation_method'])
table.setNumberofInterpolationPoints(data['number_of_interpolation_points'])
table.setCurveType(data['curve_type'])
table.setTableDataFormat('SingleLineIndependentVariableWithMatrix')
table.setNormalizationReference(data['normalization_reference'].to_f)
# set table limits
table.setMinimumValueofX1(data['minimum_independent_variable_1'].to_f)
table.setMaximumValueofX1(data['maximum_independent_variable_1'].to_f)
table.setInputUnitTypeforX1(data['input_unit_type_x1'])
if num_ind_var == 2
table.setMinimumValueofX2(data['minimum_independent_variable_2'].to_f)
table.setMaximumValueofX2(data['maximum_independent_variable_2'].to_f)
table.setInputUnitTypeforX2(data['input_unit_type_x2'])
end
# add data points
data_points = data.each.select { |key, value| key.include? 'data_point' }
data_points.each do |key, value|
if num_ind_var == 1
table.addPoint(value.split(',')[0].to_f, value.split(',')[1].to_f)
elsif num_ind_var == 2
table.addPoint(value.split(',')[0].to_f, value.split(',')[1].to_f, value.split(',')[2].to_f)
end
end
else
# Use TableLookup Object
table = OpenStudio::Model::TableLookup.new(model)
table.setNormalizationDivisor(data['normalization_reference'].to_f)
# sorting data in ascending order
data_points = data.each.select { |key, value| key.include? 'data_point' }
data_points = data_points.sort_by { |item| item[1].split(',').map(&:to_f) }
data_points.each do |key, value|
var_dep = value.split(',')[2].to_f
table.addOutputValue(var_dep)
end
num_ind_var.times do |i|
table_indvar = OpenStudio::Model::TableIndependentVariable.new(model)
table_indvar.setName(data['name'] + "_ind_#{i + 1}")
table_indvar.setInterpolationMethod(data['interpolation_method'])
# set table limits
table_indvar.setMinimumValue(data["minimum_independent_variable_#{i + 1}"].to_f)
table_indvar.setMaximumValue(data["maximum_independent_variable_#{i + 1}"].to_f)
table_indvar.setUnitType(data["input_unit_type_x#{i + 1}"].to_s)
# add data points
var_ind_unique = data_points.map { |key, value| value.split(',')[i].to_f }.uniq
var_ind_unique.each { |var_ind| table_indvar.addValue(var_ind) }
table.addIndependentVariable(table_indvar)
end
end
table.setName(data['name'])
table.setOutputUnitType(data['output_unit_type'])
return table
else
OpenStudio.logFree(OpenStudio::Error, 'openstudio.Model.Model', "#{curve_name}' has an invalid form: #{data['form']}', cannot create this curve.")
return nil
end
end
# Find the legacy simulation results from a CSV of previously created results.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param climate_zone [String] ASHRAE climate zone, e.g. 'ASHRAE 169-2013-4A'
# @param building_type [String] the building type
# @param run_type [String] design day is dd-only, otherwise annual run
# @param lkp_template [String] The standards template, e.g.'90.1-2013'
# @return [Hash] a hash of results for each fuel, where the keys are in the form 'End Use|Fuel Type',
# e.g. Heating|Electricity, Exterior Equipment|Water. All end use/fuel type combos are present,
# with values of 0.0 if none of this end use/fuel type combo was used by the simulation.
# Returns nil if the legacy results couldn't be found.
def model_legacy_results_by_end_use_and_fuel_type(model, climate_zone, building_type, run_type, lkp_template: nil)
# Load the legacy idf results CSV file into a ruby hash
top_dir = File.expand_path('../../..', File.dirname(__FILE__))
standards_data_dir = "#{top_dir}/data/standards"
temp = ''
# Run differently depending on whether running from embedded filesystem in OpenStudio CLI or not
if __dir__[0] == ':' # Running from OpenStudio CLI
# load file from embedded files
if run_type == 'dd-only'
temp = load_resource_relative('../../../data/standards/test_performance_expected_dd_results.csv', 'r:UTF-8')
else
temp = load_resource_relative('../../../data/standards/legacy_idf_results.csv', 'r:UTF-8')
end
else
# loaded gem from system path
if run_type == 'dd-only'
temp = File.read("#{standards_data_dir}/test_performance_expected_dd_results.csv")
else
temp = File.read("#{standards_data_dir}/legacy_idf_results.csv")
end
end
legacy_idf_csv = CSV.new(temp, headers: true, converters: :all)
legacy_idf_results = legacy_idf_csv.to_a.map(&:to_hash)
if lkp_template.nil?
lkp_template = template
end
# Get the results for this building
search_criteria = {
'Building Type' => building_type,
'Template' => lkp_template,
'Climate Zone' => climate_zone
}
energy_values = model_find_object(legacy_idf_results, search_criteria)
if energy_values.nil?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Could not find legacy simulation results for #{search_criteria}")
return {}
end
return energy_values
end
# Method to gather prototype simulation results for a specific climate zone, building type, and template
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param climate_zone [String] ASHRAE climate zone, e.g. 'ASHRAE 169-2013-4A'
# @param building_type [String] the building type
# @param lkp_template [String] The standards template, e.g.'90.1-2013'
# @return [Hash] Returns a hash with data presented in various bins.
# Returns nil if no search results
def model_process_results_for_datapoint(model, climate_zone, building_type, lkp_template: nil)
# Hash to store the legacy results by fuel and by end use
legacy_results_hash = {}
legacy_results_hash['total_legacy_energy_val'] = 0
legacy_results_hash['total_legacy_water_val'] = 0
legacy_results_hash['total_energy_by_fuel'] = {}
legacy_results_hash['total_energy_by_end_use'] = {}
# Get the legacy simulation results
legacy_values = model_legacy_results_by_end_use_and_fuel_type(model, climate_zone, building_type, 'annual', lkp_template: lkp_template)
if legacy_values.nil?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Could not find legacy idf results for #{search_criteria}")
return legacy_results_hash
end
# List of all fuel types
fuel_types = ['Electricity', 'Natural Gas', 'Additional Fuel', 'District Cooling', 'District Heating', 'Water']
# List of all end uses
end_uses = ['Heating', 'Cooling', 'Interior Lighting', 'Exterior Lighting', 'Interior Equipment', 'Exterior Equipment', 'Fans', 'Pumps', 'Heat Rejection', 'Humidification', 'Heat Recovery', 'Water Systems', 'Refrigeration', 'Generators']
# Sum the legacy results up by fuel and by end use
fuel_types.each do |fuel_type|
end_uses.each do |end_use|
next if end_use == 'Exterior Equipment'
legacy_val = legacy_values["#{end_use}|#{fuel_type}"]
# Combine the exterior lighting and exterior equipment
if end_use == 'Exterior Lighting'
legacy_exterior_equipment = legacy_values["Exterior Equipment|#{fuel_type}"]
unless legacy_exterior_equipment.nil?
legacy_val += legacy_exterior_equipment
end
end
if legacy_val.nil?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "#{fuel_type} #{end_use} legacy idf value not found")
next
end
# Add the energy to the total
if fuel_type == 'Water'
legacy_results_hash['total_legacy_water_val'] += legacy_val
else
legacy_results_hash['total_legacy_energy_val'] += legacy_val
# add to fuel specific total
if legacy_results_hash['total_energy_by_fuel'][fuel_type]
legacy_results_hash['total_energy_by_fuel'][fuel_type] += legacy_val # add to existing counter
else
legacy_results_hash['total_energy_by_fuel'][fuel_type] = legacy_val # start new counter
end
# add to end use specific total
if legacy_results_hash['total_energy_by_end_use'][end_use]
legacy_results_hash['total_energy_by_end_use'][end_use] += legacy_val # add to existing counter
else
legacy_results_hash['total_energy_by_end_use'][end_use] = legacy_val # start new counter
end
end
end
end
return legacy_results_hash
end
# Keep track of floor area for prototype buildings.
# This is used to calculate EUI's to compare against non prototype buildings
# Areas taken from scorecard Excel Files
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param building_type [String] the building type
# @return [Double] floor area (m^2) of prototype building for building type passed in.
# Returns nil if unexpected building type
def model_find_prototype_floor_area(model, building_type)
case building_type
when 'FullServiceRestaurant' # 5502 ft^2
result = 511
when 'Hospital' # 241,410 ft^2 (including basement)
result = 22_422
when 'LargeHotel' # 122,132 ft^2
result = 11_345
when 'LargeOffice', 'LargeOfficeDetailed' # 498,600 ft^2
result = 46_320
when 'MediumOffice', 'MediumOfficeDetailed' # 53,600 ft^2
result = 4982
when 'MidriseApartment' # 33,700 ft^2
result = 3135
when 'Office'
result = nil
# @todo there shouldn't be a prototype building for this
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', 'Measures calling this should choose between SmallOffice, MediumOffice, and LargeOffice')
when 'Outpatient' # 40.950 ft^2
result = 3804
when 'PrimarySchool' # 73,960 ft^2
result = 6871
when 'QuickServiceRestaurant' # 2500 ft^2
result = 232
when 'Retail' # 24,695 ft^2
result = 2294
when 'SecondarySchool' # 210,900 ft^2
result = 19_592
when 'SmallHotel' # 43,200 ft^2
result = 4014
when 'SmallOffice', 'SmallOfficeDetailed' # 5500 ft^2
result = 511
when 'StripMall' # 22,500 ft^2
result = 2090
when 'SuperMarket' # 45,002 ft2 (from legacy reference idf file)
result = 4181
when 'Warehouse' # 49,495 ft^2 (legacy ref shows 52,045, but I wil calc using 49,495)
result = 4595
when 'SmallDataCenterLowITE', 'SmallDataCenterHighITE' # 600 ft^2
result = 56
when 'LargeDataCenterLowITE', 'LargeDataCenterHighITE' # 6000 ft^2
result = 557
when 'Laboratory' # 90000 ft^2
result = 8361
else
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Didn't find expected building type. As a result can't determine floor prototype floor area")
result = nil
end
return result
end
# This is used by other methods to get the climate zone and building type from a model.
# It has logic to break office into small,
# medium or large based on building area that can be turned off
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param remap_office [Boolean] re-map small office or leave it alone
# @return [Hash] key for climate zone, building type, and standards template. All values are strings.
def model_get_building_properties(model, remap_office = true)
# get climate zone from model
climate_zone = OpenstudioStandards::Weather.model_get_climate_zone(model)
# get building type from model
building_type = ''
if model.getBuilding.standardsBuildingType.is_initialized
building_type = model.getBuilding.standardsBuildingType.get
end
# map office building type to small medium or large
if building_type == 'Office' && remap_office
open_studio_area = model.getBuilding.floorArea
building_type = model_remap_office(model, open_studio_area)
end
# get standards template
if model.getBuilding.standardsTemplate.is_initialized
standards_template = model.getBuilding.standardsTemplate.get
end
results = {}
results['climate_zone'] = climate_zone
results['building_type'] = building_type
results['standards_template'] = standards_template
return results
end
# remap office to one of the prototype buildings
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param floor_area [Double] floor area (m^2)
# @return [String] SmallOffice, MediumOffice, LargeOffice
def model_remap_office(model, floor_area)
# prototype small office approx 500 m^2
# prototype medium office approx 5000 m^2
# prototype large office approx 50,000 m^2
# map office building type to small medium or large
building_type = if floor_area < 2750
'SmallOffice'
elsif floor_area < 25_250
'MediumOffice'
else
'LargeOffice'
end
end
# User needs to pass in template as string.
# The building type and climate zone will come from the model.
# If the building type or ASHRAE climate zone is not set in the model this will return nil
# If the lookup doesn't find matching simulation results this wil return nil
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Double] EUI (MJ/m^2) for target template for given OSM. Returns nil if can't calculate EUI
def model_find_target_eui(model)
building_data = model_get_building_properties(model)
climate_zone = building_data['climate_zone']
building_type = building_data['building_type']
building_template = building_data['standards_template']
# look up results
target_consumption = model_process_results_for_datapoint(model, climate_zone, building_type, lkp_template: building_template)
# lookup target floor area for prototype buildings
target_floor_area = model_find_prototype_floor_area(model, building_type)
if target_consumption['total_legacy_energy_val'] > 0
if target_floor_area > 0
result = target_consumption['total_legacy_energy_val'] / target_floor_area
else
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', 'Cannot find prototype building floor area')
result = nil
end
else
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Cannot find target results for #{climate_zone},#{building_type},#{template}")
result = nil # couldn't calculate EUI consumpiton lookup failed
end
return result
end
# User needs to pass in template as string.
# The building type and climate zone will come from the model.
# If the building type or ASHRAE climate zone is not set in the model this will return nil
# If the lookup doesn't find matching simulation results this wil return nil
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Hash] EUI (MJ/m^2) This will return a hash of end uses. key is end use, value is eui
def model_find_target_eui_by_end_use(model)
building_data = model_get_building_properties(model)
climate_zone = building_data['climate_zone']
building_type = building_data['building_type']
building_template = building_data['standards_template']
# look up results
target_consumption = model_process_results_for_datapoint(model, climate_zone, building_type, lkp_template: building_template)
# lookup target floor area for prototype buildings
target_floor_area = model_find_prototype_floor_area(model, building_type)
if target_consumption['total_legacy_energy_val'] > 0
if target_floor_area > 0
result = {}
target_consumption['total_energy_by_end_use'].each do |end_use, consumption|
result[end_use] = consumption / target_floor_area
end
else
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', 'Cannot find prototype building floor area')
result = nil
end
else
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Cannot find target results for #{climate_zone},#{building_type},#{template}")
result = nil # couldn't calculate EUI consumpiton lookup failed
end
return result
end
# Go through the default construction sets and hard-assigned constructions.
# Clone the existing constructions and set their intended surface type and standards construction type per the PRM.
# For some standards, this will involve making modifications. For others, it will not.
#
# 90.1-2007, 90.1-2010, 90.1-2013
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Boolean] returns true if successful, false if not
def model_apply_prm_construction_types(model)
types_to_modify = []
# Possible boundary conditions are
# Adiabatic
# Surface
# Outdoors
# Ground
# Possible surface types are
# AtticFloor
# AtticWall
# AtticRoof
# DemisingFloor
# DemisingWall
# DemisingRoof
# ExteriorFloor
# ExteriorWall
# ExteriorRoof
# ExteriorWindow
# ExteriorDoor
# GlassDoor
# GroundContactFloor
# GroundContactWall
# GroundContactRoof
# InteriorFloor
# InteriorWall
# InteriorCeiling
# InteriorPartition
# InteriorWindow
# InteriorDoor
# OverheadDoor
# Skylight
# TubularDaylightDome
# TubularDaylightDiffuser
# Possible standards construction types
# Mass
# SteelFramed
# WoodFramed
# IEAD
# View
# Daylight
# Swinging
# NonSwinging
# Heated
# Unheated
# RollUp
# Sliding
# Metal
# Nonmetal framing (all)
# Metal framing (curtainwall/storefront)
# Metal framing (entrance door)
# Metal framing (all other)
# Metal Building
# Attic and Other
# Glass with Curb
# Plastic with Curb
# Without Curb
# Create an array of types
types_to_modify << ['Outdoors', 'ExteriorWall', 'SteelFramed']
types_to_modify << ['Outdoors', 'ExteriorRoof', 'IEAD']
types_to_modify << ['Outdoors', 'ExteriorFloor', 'SteelFramed']
types_to_modify << ['Ground', 'GroundContactFloor', 'Unheated']
types_to_modify << ['Ground', 'GroundContactWall', 'Mass']
# Modify all constructions of each type
types_to_modify.each do |boundary_cond, surf_type, const_type|
constructions = OpenstudioStandards::Constructions.model_get_constructions(model, boundary_cond, surf_type)
constructions.sort.each do |const|
standards_info = const.standardsInformation
standards_info.setIntendedSurfaceType(surf_type)
standards_info.setStandardsConstructionType(const_type)
end
end
return true
end
# Apply the standard construction to each surface in the model, based on the construction type currently assigned.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param climate_zone [String] ASHRAE climate zone, e.g. 'ASHRAE 169-2013-4A'
# @return [Boolean] returns true if successful, false if not
def model_apply_standard_constructions(model, climate_zone, wwr_building_type: nil, wwr_info: {})
types_to_modify = []
# Possible boundary conditions are
# Adiabatic
# Surface
# Outdoors
# Ground
# Possible surface types are
# Floor
# Wall
# RoofCeiling
# FixedWindow
# OperableWindow
# Door
# GlassDoor
# OverheadDoor
# Skylight
# TubularDaylightDome
# TubularDaylightDiffuser
# Create an array of surface types
types_to_modify << ['Outdoors', 'Floor']
types_to_modify << ['Outdoors', 'Wall']
types_to_modify << ['Outdoors', 'RoofCeiling']
types_to_modify << ['Outdoors', 'FixedWindow']
types_to_modify << ['Outdoors', 'OperableWindow']
types_to_modify << ['Outdoors', 'Door']
types_to_modify << ['Outdoors', 'GlassDoor']
types_to_modify << ['Outdoors', 'OverheadDoor']
types_to_modify << ['Outdoors', 'Skylight']
types_to_modify << ['Ground', 'Floor']
types_to_modify << ['Ground', 'Wall']
# Find just those surfaces
surfaces_to_modify = []
surface_category = {}
types_to_modify.each do |boundary_condition, surface_type|
# Surfaces
model.getSurfaces.sort.each do |surf|
next unless surf.outsideBoundaryCondition == boundary_condition
next unless surf.surfaceType == surface_type
if boundary_condition == 'Outdoors'
surface_category[surf] = 'ExteriorSurface'
elsif boundary_condition == 'Ground'
surface_category[surf] = 'GroundSurface'
else
surface_category[surf] = 'NA'
end
surfaces_to_modify << surf
end
# SubSurfaces
model.getSubSurfaces.sort.each do |surf|
next unless surf.outsideBoundaryCondition == boundary_condition
next unless surf.subSurfaceType == surface_type
surface_category[surf] = 'ExteriorSubSurface'
surfaces_to_modify << surf
end
end
# Modify these surfaces
prev_created_consts = {}
surfaces_to_modify.sort.each do |surf|
prev_created_consts = planar_surface_apply_standard_construction(surf, climate_zone, prev_created_consts, wwr_building_type, wwr_info, surface_category[surf])
end
# List the unique array of constructions
if prev_created_consts.empty?
OpenStudio.logFree(OpenStudio::Warn, 'openstudio.standards.Model', 'None of the constructions in your proposed model have both Intended Surface Type and Standards Construction Type')
else
prev_created_consts.each do |surf_type, construction|
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "For #{surf_type.join(' ')}, applied #{construction.name}.")
end
end
return true
end
# Returns standards data for selected construction
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param intended_surface_type [String] the surface type
# @param standards_construction_type [String] the type of construction
# @param building_category [String] the type of building
# @param climate_zone [String] ASHRAE climate zone, e.g. 'ASHRAE 169-2013-4A'
# @return [Hash] hash of construction properties
def model_get_construction_properties(model, intended_surface_type, standards_construction_type, building_category, climate_zone = nil)
# get climate_zone_set
climate_zone = model_get_building_properties(model)['climate_zone'] if climate_zone.nil?
climate_zone_set = model_find_climate_zone_set(model, climate_zone)
# populate search hash
search_criteria = {
'template' => template,
'climate_zone_set' => climate_zone_set,
'intended_surface_type' => intended_surface_type,
'standards_construction_type' => standards_construction_type,
'building_category' => building_category
}
# switch to use this but update test in standards and measures to load this outside of the method
construction_properties = model_find_object(standards_data['construction_properties'], search_criteria)
if !construction_properties
# Search again use climate zone (e.g. 3) instead of sub-climate zone (3A)
search_criteria['climate_zone_set'] = climate_zone_set[0..-2]
construction_properties = model_find_object(standards_data['construction_properties'], search_criteria)
end
return construction_properties
end
# Returns standards data for selected construction set
#
# @param building_type [String] the type of building
# @param space_type [String] space type within the building type. Typically nil.
# @return [Hash] hash of construction set data
def model_get_construction_set(building_type, space_type = nil)
# populate search hash
search_criteria = {
'template' => template,
'building_type' => building_type,
'space_type' => space_type
}
# Search construction sets table for the exterior wall building category and construction type
construction_set_data = model_find_object(standards_data['construction_sets'], search_criteria)
return construction_set_data
end
# Reduces the WWR to the values specified by the PRM.
# WWR reduction will be done by moving vertices inward toward centroid.
# This causes the least impact on the daylighting area calculations and controls placement.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param climate_zone [String] ASHRAE climate zone, e.g. 'ASHRAE 169-2013-4A'
# @return [Boolean] returns true if successful, false if not
# @todo add proper support for 90.1-2013 with all those building type specific values
# @todo support 90.1-2004 requirement that windows be modeled as horizontal bands.
# Currently just using existing window geometry, and shrinking as necessary if WWR is above limit.
# @todo support semiheated spaces as a separate WWR category
# @todo add window frame area to calculation of WWR
def model_apply_prm_baseline_window_to_wall_ratio(model, climate_zone, wwr_building_type: nil)
# Define a Hash that will contain wall and window area for all
# building area types included in the model
# bat = building area type
bat_win_wall_info = {}
# Store the baseline wwr, only used for 90.1-PRM-2019,
# it is necessary for looking up baseline fenestration
# U-factor and SHGC requirements
base_wwr = {}
# Store the space conditioning category for later use
space_cats = {}
model.getSpaces.sort.each do |space|
# Get standards space type and
# catch spaces without space types
#
# Currently, priority is given to the wwr_building_type,
# meaning that only one building area type is used. The
# method can however handle models with multiple building
# area type, if they are specified through each space's
# space type standards building type.
if space.hasAdditionalProperties && space.additionalProperties.hasFeature('building_type_for_wwr')
std_spc_type = space.additionalProperties.getFeatureAsString('building_type_for_wwr').get
else
std_spc_type = 'no_space_type'
if !wwr_building_type.nil?
std_spc_type = wwr_building_type
elsif space.spaceType.is_initialized
std_spc_type = space.spaceType.get.standardsBuildingType.to_s
end
# insert space wwr type as additional properties for later search
space.additionalProperties.setFeature('building_type_for_wwr', std_spc_type)
end
# Initialize intermediate variables if space type hasn't
# been encountered yet
if bat_win_wall_info.key?(std_spc_type)
bat = bat_win_wall_info[std_spc_type]
else
bat_win_wall_info[std_spc_type] = {}
bat = bat_win_wall_info[std_spc_type]
# Loop through all spaces in the model, and
# per the PNNL PRM Reference Manual, find the areas
# of each space conditioning category (res, nonres, semi-heated)
# separately. Include space multipliers.
bat.store('nr_wall_m2', 0.001) # Avoids divide by zero errors later
bat.store('nr_fene_only_wall_m2', 0.001)
bat.store('nr_plenum_wall_m2', 0.001)
bat.store('nr_wind_m2', 0)
bat.store('res_wall_m2', 0.001)
bat.store('res_fene_only_wall_m2', 0.001)
bat.store('res_wind_m2', 0)
bat.store('res_plenum_wall_m2', 0.001)
bat.store('sh_wall_m2', 0.001)
bat.store('sh_fene_only_wall_m2', 0.001)
bat.store('sh_wind_m2', 0)
bat.store('sh_plenum_wall_m2', 0.001)
bat.store('total_wall_m2', 0.001)
bat.store('total_plenum_m2', 0.001)
end
# Loop through all surfaces in this space
wall_area_m2 = 0
wind_area_m2 = 0
# save wall area from walls that have fenestrations (subsurfaces)
wall_only_area_m2 = 0
space.surfaces.sort.each do |surface|
# Skip non-outdoor surfaces
next unless surface.outsideBoundaryCondition == 'Outdoors'
# Skip non-walls
next unless surface.surfaceType.casecmp('wall').zero?
# This wall's gross area (including window area)
wall_area_m2 += surface.grossArea * space.multiplier
unless surface.subSurfaces.empty?
# Subsurfaces in this surface
surface.subSurfaces.sort.each do |ss|
next unless ss.subSurfaceType == 'FixedWindow' || ss.subSurfaceType == 'OperableWindow' || ss.subSurfaceType == 'GlassDoor'
# Only add wall surfaces when the wall actually have windows
wind_area_m2 += ss.netArea * space.multiplier
end
end
if wind_area_m2 > 0.0
wall_only_area_m2 += surface.grossArea * space.multiplier
end
end
# Determine the space category
if model_create_prm_baseline_building_requires_proposed_model_sizing_run(model)
# For PRM 90.1-2019 and onward, determine space category
# based on sizing run results
cat = space_conditioning_category(space)
else
# @todo This should really use the heating/cooling loads from the proposed building.
# However, in an attempt to avoid another sizing run just for this purpose,
# conditioned status is based on heating/cooling setpoints.
# If heated-only, will be assumed Semiheated.
# The full-bore method is on the next line in case needed.
# cat = thermal_zone_conditioning_category(space, template, climate_zone)
cooled = OpenstudioStandards::Space.space_cooled?(space)
heated = OpenstudioStandards::Space.space_heated?(space)
cat = 'Unconditioned'
# Unconditioned
if !heated && !cooled
cat = 'Unconditioned'
# Heated-Only
elsif heated && !cooled
cat = 'Semiheated'
# Heated and Cooled
else
res = OpenstudioStandards::Space.space_residential?(space)
cat = if res
'ResConditioned'
else
'NonResConditioned'
end
end
end
space_cats[space] = cat
# Add to the correct category is_space_plenum?
case cat
when 'Unconditioned'
next # Skip unconditioned spaces
when 'NonResConditioned'
space_is_plenum(space) ? bat['nr_plenum_wall_m2'] += wall_area_m2 : bat['nr_plenum_wall_m2'] += 0.0
bat['nr_wall_m2'] += wall_area_m2
bat['nr_fene_only_wall_m2'] += wall_only_area_m2
bat['nr_wind_m2'] += wind_area_m2
when 'ResConditioned'
space_is_plenum(space) ? bat['res_plenum_wall_m2'] += wall_area_m2 : bat['res_plenum_wall_m2'] += 0.0
bat['res_wall_m2'] += wall_area_m2
bat['res_fene_only_wall_m2'] += wall_only_area_m2
bat['res_wind_m2'] += wind_area_m2
when 'Semiheated'
space_is_plenum(space) ? bat['sh_plenum_wall_m2'] += wall_area_m2 : bat['sh_plenum_wall_m2'] += 0.0
bat['sh_wall_m2'] += wall_area_m2
bat['sh_fene_only_wall_m2'] += wall_only_area_m2
bat['sh_wind_m2'] += wind_area_m2
end
end
# Retrieve WWR info for all Building Area Types included in the model
# and perform adjustements if
# bat = building area type
bat_win_wall_info.each do |bat, vals|
# Calculate the WWR of each category
vals.store('wwr_nr', ((vals['nr_wind_m2'] / vals['nr_wall_m2']) * 100.0).round(1))
vals.store('wwr_res', ((vals['res_wind_m2'] / vals['res_wall_m2']) * 100).round(1))
vals.store('wwr_sh', ((vals['sh_wind_m2'] / vals['sh_wall_m2']) * 100).round(1))
# Convert to IP and report
vals.store('nr_wind_ft2', OpenStudio.convert(vals['nr_wind_m2'], 'm^2', 'ft^2').get)
vals.store('nr_wall_ft2', OpenStudio.convert(vals['nr_wall_m2'], 'm^2', 'ft^2').get)
vals.store('res_wind_ft2', OpenStudio.convert(vals['res_wind_m2'], 'm^2', 'ft^2').get)
vals.store('res_wall_ft2', OpenStudio.convert(vals['res_wall_m2'], 'm^2', 'ft^2').get)
vals.store('sh_wind_ft2', OpenStudio.convert(vals['sh_wind_m2'], 'm^2', 'ft^2').get)
vals.store('sh_wall_ft2', OpenStudio.convert(vals['sh_wall_m2'], 'm^2', 'ft^2').get)
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "WWR NonRes = #{vals['wwr_nr'].round}%; window = #{vals['nr_wind_ft2'].round} ft2, wall = #{vals['nr_wall_ft2'].round} ft2.")
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "WWR Res = #{vals['wwr_res'].round}%; window = #{vals['res_wind_ft2'].round} ft2, wall = #{vals['res_wall_ft2'].round} ft2.")
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "WWR Semiheated = #{vals['wwr_sh'].round}%; window = #{vals['sh_wind_ft2'].round} ft2, wall = #{vals['sh_wall_ft2'].round} ft2.")
# WWR limit or target
wwr_lim = model_get_bat_wwr_target(bat, [vals['wwr_nr'], vals['wwr_res'], vals['wwr_sh']])
# Check against WWR limit
vals['red_nr'] = vals['wwr_nr'] > wwr_lim
vals['red_res'] = vals['wwr_res'] > wwr_lim
vals['red_sh'] = vals['wwr_sh'] > wwr_lim
# Stop here unless windows need reducing or increasing
return true, base_wwr unless model_does_require_wwr_adjustment?(wwr_lim, [vals['wwr_nr'], vals['wwr_res'], vals['wwr_sh']])
# Determine the factors by which to reduce the window area
vals['mult_nr_red'] = wwr_lim / vals['wwr_nr']
vals['mult_res_red'] = wwr_lim / vals['wwr_res']
vals['mult_sh_red'] = wwr_lim / vals['wwr_sh']
# Report baseline WWR
vals['wwr_nr'] *= vals['mult_nr_red']
vals['wwr_res'] *= vals['mult_res_red']
vals['wwr_sh'] *= vals['mult_sh_red']
wwrs = [vals['wwr_nr'], vals['wwr_res'], vals['wwr_sh']]
max_wwrs = []
wwrs.each do |w|
max_wwrs << w unless w.nan?
end
base_wwr[bat] = max_wwrs.max
# Reduce the window area if any of the categories necessary
model.getSpaces.sort.each do |space|
# Catch spaces without space types
std_spc_type = space.additionalProperties.getFeatureAsString('building_type_for_wwr').get
# skip process the space unless the space wwr type matched.
next unless bat == std_spc_type
# supply and return plenum is now conditioned space but should be excluded from window adjustment
next if space_is_plenum(space)
# Determine the space category
# from the previously stored values
cat = space_cats[space]
# Get the correct multiplier
case cat
when 'Unconditioned'
next # Skip unconditioned spaces
when 'NonResConditioned'
mult = vals['mult_nr_red']
total_wall_area = vals['nr_wall_m2']
total_wall_with_fene_area = vals['nr_fene_only_wall_m2']
total_plenum_wall_area = vals['nr_plenum_wall_m2']
total_fene_area = vals['nr_wind_m2']
when 'ResConditioned'
mult = vals['mult_res_red']
total_wall_area = vals['res_wall_m2']
total_wall_with_fene_area = vals['res_fene_only_wall_m2']
total_plenum_wall_area = vals['res_plenum_wall_m2']
total_fene_area = vals['res_wind_m2']
when 'Semiheated'
mult = vals['mult_sh_red']
total_wall_area = vals['sh_wall_m2']
total_wall_with_fene_area = vals['sh_fene_only_wall_m2']
total_plenum_wall_area = vals['sh_plenum_wall_m2']
total_fene_area = vals['sh_wind_m2']
end
# used for counting how many window area is left for doors
residual_fene = 0.0
# Loop through all surfaces in this space
space.surfaces.sort.each do |surface|
# Skip non-outdoor surfaces
next unless surface.outsideBoundaryCondition == 'Outdoors'
# Skip non-walls
next unless surface.surfaceType.casecmp('wall').zero?
# Reduce the size of the window
# If a vertical rectangle, raise sill height to avoid
# impacting daylighting areas, otherwise
# reduce toward centroid.
#
# daylighting control isn't modeled
red = surface_get_wwr_reduction_ratio(mult,
surface,
wwr_building_type: bat,
wwr_target: wwr_lim / 100, # divide by 100 to revise it to decimals
total_wall_m2: total_wall_area,
total_wall_with_fene_m2: total_wall_with_fene_area,
total_fene_m2: total_fene_area,
total_plenum_wall_m2: total_plenum_wall_area)
if red < 0.0
# surface with fenestration to its maximum but adjusted by door areas when need to add windows in surfaces no fenestration
# turn negative to positive to get the correct adjustment factor.
red = -red
surface_wwr = OpenstudioStandards::Geometry.surface_get_window_to_wall_ratio(surface)
residual_fene += (0.9 - (red * surface_wwr)) * surface.grossArea
end
surface_adjust_fenestration_in_a_surface(surface, red, model)
end
if residual_fene > 0.0
residual_ratio = residual_fene / (total_wall_area - total_wall_with_fene_area)
model_readjust_surface_wwr(residual_ratio, space, model)
end
end
end
return true, base_wwr
end
# Reduces the SRR to the values specified by the PRM. SRR reduction will be done by shrinking vertices toward the centroid.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Boolean] returns true if successful, false if not
# @todo support semiheated spaces as a separate SRR category
# @todo add skylight frame area to calculation of SRR
def model_apply_prm_baseline_skylight_to_roof_ratio(model)
# Loop through all spaces in the model, and
# per the PNNL PRM Reference Manual, find the areas
# of each space conditioning category (res, nonres, semi-heated)
# separately. Include space multipliers.
nr_wall_m2 = 0.001 # Avoids divide by zero errors later
nr_sky_m2 = 0
res_wall_m2 = 0.001
res_sky_m2 = 0
sh_wall_m2 = 0.001
sh_sky_m2 = 0
total_roof_m2 = 0.001
total_subsurface_m2 = 0
model.getSpaces.sort.each do |space|
# Loop through all surfaces in this space
wall_area_m2 = 0
sky_area_m2 = 0
space.surfaces.sort.each do |surface|
# Skip non-outdoor surfaces
next unless surface.outsideBoundaryCondition == 'Outdoors'
# Skip non-walls
next unless surface.surfaceType == 'RoofCeiling'
# This wall's gross area (including skylight area)
wall_area_m2 += surface.grossArea * space.multiplier
# Subsurfaces in this surface
surface.subSurfaces.sort.each do |ss|
next unless ss.subSurfaceType == 'Skylight'
sky_area_m2 += ss.netArea * space.multiplier
end
end
# Determine the space category
cat = 'NonRes'
if OpenstudioStandards::Space.space_residential?(space)
cat = 'Res'
end
# if space.is_semiheated
# cat = 'Semiheated'
# end
# Add to the correct category
case cat
when 'NonRes'
nr_wall_m2 += wall_area_m2
nr_sky_m2 += sky_area_m2
when 'Res'
res_wall_m2 += wall_area_m2
res_sky_m2 += sky_area_m2
when 'Semiheated'
sh_wall_m2 += wall_area_m2
sh_sky_m2 += sky_area_m2
end
total_roof_m2 += wall_area_m2
total_subsurface_m2 += sky_area_m2
end
# Calculate the SRR of each category
srr_nr = ((nr_sky_m2 / nr_wall_m2) * 100).round(1)
srr_res = ((res_sky_m2 / res_wall_m2) * 100).round(1)
srr_sh = ((sh_sky_m2 / sh_wall_m2) * 100).round(1)
srr = ((total_subsurface_m2 / total_roof_m2) * 100.0).round(1)
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "The skylight to roof ratios (SRRs) are: NonRes: #{srr_nr.round}%, Res: #{srr_res.round}%.")
# SRR limit
srr_lim = model_prm_skylight_to_roof_ratio_limit(model)
# Check against SRR limit
red_nr = srr_nr > srr_lim
red_res = srr_res > srr_lim
red_sh = srr_sh > srr_lim
# Stop here unless skylights need reducing
return true unless red_nr || red_res || red_sh
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Reducing the size of all skylights equally down to the limit of #{srr_lim.round}%.")
# Determine the factors by which to reduce the skylight area
mult_nr_red = srr_lim / srr_nr
mult_res_red = srr_lim / srr_res
# mult_sh_red = srr_lim / srr_sh
# Reduce the skylight area if any of the categories necessary
model.getSpaces.sort.each do |space|
# Determine the space category
cat = 'NonRes'
if OpenstudioStandards::Space.space_residential?(space)
cat = 'Res'
end
# if space.is_semiheated
# cat = 'Semiheated'
# end
# Skip spaces whose skylights don't need to be reduced
case cat
when 'NonRes'
next unless red_nr
mult = mult_nr_red
when 'Res'
next unless red_res
mult = mult_res_red
when 'Semiheated'
next unless red_sh
# mult = mult_sh_red
end
# Loop through all surfaces in this space
space.surfaces.sort.each do |surface|
# Skip non-outdoor surfaces
next unless surface.outsideBoundaryCondition == 'Outdoors'
# Skip non-walls
next unless surface.surfaceType == 'RoofCeiling'
# Subsurfaces in this surface
surface.subSurfaces.sort.each do |ss|
next unless ss.subSurfaceType == 'Skylight'
# Reduce the size of the skylight
red = 1.0 - mult
OpenstudioStandards::Geometry.sub_surface_reduce_area_by_percent_by_shrinking_toward_centroid(ss, red)
end
end
end
return true
end
# Determines the skylight to roof ratio limit for a given standard
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Double] the skylight to roof ratio, as a percent: 5.0 = 5%. 5% by default.
def model_prm_skylight_to_roof_ratio_limit(model)
srr_lim = 5.0
return srr_lim
end
# Apply baseline values to exterior lights objects
# Only implemented for stable baseline
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
def model_apply_baseline_exterior_lighting(model)
return false
end
# Function to add baseline elevators based on user data
# Only applicable to stable baseline
# @param model [OpenStudio::Model::Model] OpenStudio model object
def model_add_prm_elevators(model)
return false
end
# Remove all HVAC that will be replaced during the performance rating method baseline generation.
# This does not include plant loops that serve WaterUse:Equipment or Fan:ZoneExhaust
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Boolean] returns true if successful, false if not
def model_remove_prm_hvac(model)
# Plant loops
model.getPlantLoops.sort.each do |loop|
# Don't remove service water heating loops
next if plant_loop_swh_loop?(loop)
loop.remove
end
# Air loops
model.getAirLoopHVACs.each do |air_loop|
# Don't remove airloops representing non-mechanically cooled systems
if air_loop.additionalProperties.hasFeature('non_mechanically_cooled')
# Remove heating coil on
air_loop.supplyComponents.each do |supply_comp|
# Remove standalone heating coils
if supply_comp.iddObjectType.valueName.to_s.include?('OS_Coil_Heating')
supply_comp.remove
# Remove heating coils wrapped in a unitary system
elsif supply_comp.iddObjectType.valueName.to_s.include?('OS_AirLoopHVAC_UnitarySystem')
unitary_system = supply_comp.to_AirLoopHVACUnitarySystem.get
htg_coil = unitary_system.heatingCoil
if htg_coil.is_initialized
htg_coil = htg_coil.get
unitary_system.resetCoolingCoil
htg_coil.remove
end
end
end
else
air_loop.remove
end
end
# Zone equipment
model.getThermalZones.sort.each do |zone|
zone.equipment.each do |zone_equipment|
next if zone_equipment.to_FanZoneExhaust.is_initialized
zone_equipment.remove unless zone.additionalProperties.hasFeature('non_mechanically_cooled')
end
end
# Outdoor VRF units (not in zone, not in loops)
model.getAirConditionerVariableRefrigerantFlows.each(&:remove)
# Air loop dedicated outdoor air systems
model.getAirLoopHVACDedicatedOutdoorAirSystems.each(&:remove)
return true
end
# Remove EMS objects that may be orphaned from removing HVAC
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Boolean] returns true if successful, false if not
def model_remove_prm_ems_objects(model)
model.getEnergyManagementSystemActuators.each(&:remove)
model.getEnergyManagementSystemConstructionIndexVariables.each(&:remove)
model.getEnergyManagementSystemCurveOrTableIndexVariables.each(&:remove)
model.getEnergyManagementSystemGlobalVariables.each(&:remove)
model.getEnergyManagementSystemInternalVariables.each(&:remove)
model.getEnergyManagementSystemMeteredOutputVariables.each(&:remove)
model.getEnergyManagementSystemOutputVariables.each(&:remove)
model.getEnergyManagementSystemPrograms.each(&:remove)
model.getEnergyManagementSystemProgramCallingManagers.each(&:remove)
model.getEnergyManagementSystemSensors.each(&:remove)
model.getEnergyManagementSystemSubroutines.each(&:remove)
model.getEnergyManagementSystemTrendVariables.each(&:remove)
return true
end
# Remove external shading devices. Site shading will not be impacted.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Boolean] returns true if successful, false if not
def model_remove_external_shading_devices(model)
shading_surfaces_removed = 0
model.getShadingSurfaceGroups.sort.each do |shade_group|
# Skip Site shading
next if shade_group.shadingSurfaceType == 'Site'
# Space shading surfaces should be removed
shading_surfaces_removed += shade_group.shadingSurfaces.size
shade_group.remove
end
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Removed #{shading_surfaces_removed} external shading devices.")
return true
end
# Changes the sizing parameters to the PRM specifications.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Boolean] returns true if successful, false if not
def model_apply_prm_sizing_parameters(model)
clg = 1.15
htg = 1.25
sizing_params = model.getSizingParameters
sizing_params.setHeatingSizingFactor(htg)
sizing_params.setCoolingSizingFactor(clg)
OpenStudio.logFree(OpenStudio::Info, 'openstudio.prototype.Model', "Set sizing factors to #{htg} for heating and #{clg} for cooling.")
return true
end
# Returns average daily hot water consumption by building type
# recommendations from 2011 ASHRAE Handbook - HVAC Applications Table 7 section 50.14
# Not all building types are included in lookup
# some recommendations have multiple values based on number of units.
# Will return an array of hashes. Many may have one array entry.
# all values other than block size are gallons.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Array] array of hashes. Each array entry based on different capacity
# specific to building type. Array will be empty for some building types.
def model_find_ashrae_hot_water_demand(model)
# @todo for types not in table use standards area normalized swh values
# get building type
building_data = model_get_building_properties(model)
building_type = building_data['building_type']
result = []
case building_type
when 'FullServiceRestaurant'
result << { units: 'meal', block: nil, max_hourly: 1.5, max_daily: 11.0, avg_day_unit: 2.4 }
when 'Hospital', 'Outpatient', 'Retail', 'StripMall', 'SuperMarket', 'Warehouse', 'SmallDataCenterLowITE', 'SmallDataCenterHighITE', 'LargeDataCenterLowITE', 'LargeDataCenterHighITE', 'Laboratory'
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "No SWH rules of thumbs for #{building_type}.")
when 'LargeHotel', 'SmallHotel'
result << { units: 'unit', block: 20, max_hourly: 6.0, max_daily: 35.0, avg_day_unit: 24.0 }
result << { units: 'unit', block: 60, max_hourly: 5.0, max_daily: 25.0, avg_day_unit: 14.0 }
result << { units: 'unit', block: 100, max_hourly: 4.0, max_daily: 15.0, avg_day_unit: 10.0 }
when 'MidriseApartment'
result << { units: 'unit', block: 20, max_hourly: 12.0, max_daily: 80.0, avg_day_unit: 42.0 }
result << { units: 'unit', block: 50, max_hourly: 10.0, max_daily: 73.0, avg_day_unit: 40.0 }
result << { units: 'unit', block: 75, max_hourly: 8.5, max_daily: 66.0, avg_day_unit: 38.0 }
result << { units: 'unit', block: 100, max_hourly: 7.0, max_daily: 60.0, avg_day_unit: 37.0 }
result << { units: 'unit', block: 200, max_hourly: 5.0, max_daily: 50.0, avg_day_unit: 35.0 }
when 'Office', 'LargeOffice', 'MediumOffice', 'SmallOffice', 'LargeOfficeDetailed', 'MediumOfficeDetailed', 'SmallOfficeDetailed'
result << { units: 'person', block: nil, max_hourly: 0.4, max_daily: 2.0, avg_day_unit: 1.0 }
when 'PrimarySchool'
result << { units: 'student', block: nil, max_hourly: 0.6, max_daily: 1.5, avg_day_unit: 0.6 }
when 'QuickServiceRestaurant'
result << { units: 'meal', block: nil, max_hourly: 0.7, max_daily: 6.0, avg_day_unit: 0.7 }
when 'SecondarySchool'
result << { units: 'student', block: nil, max_hourly: 1.0, max_daily: 3.6, avg_day_unit: 1.8 }
else
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Didn't find expected building type. As a result can't determine hot water demand recommendations")
end
return result
end
# Returns average daily hot water consumption for residential buildings
# gal/day from ICC IECC 2015 Residential Standard Reference Design
# from Table R405.5.2(1)
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param units_per_bldg [Double] number of units in the building
# @param bedrooms_per_unit [Double] number of bedrooms per unit
# @return [Double] gal/day
def model_find_icc_iecc_2015_hot_water_demand(model, units_per_bldg, bedrooms_per_unit)
swh_gal_per_day = units_per_bldg * (30.0 + (10.0 * bedrooms_per_unit))
return swh_gal_per_day
end
# Returns average daily internal loads for residential buildings from Table R405.5.2(1)
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param units_per_bldg [Double] number of units in the building
# @param bedrooms_per_unit [Double] number of bedrooms per unit
# @return [Hash] mech_vent_cfm, infiltration_ach, igain_btu_per_day, internal_mass_lbs
def model_find_icc_iecc_2015_internal_loads(model, units_per_bldg, bedrooms_per_unit)
# get total and conditioned floor area
total_floor_area = model.getBuilding.floorArea
if model.getBuilding.conditionedFloorArea.is_initialized
conditioned_floor_area = model.getBuilding.conditionedFloorArea.get
else
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', 'Cannot find conditioned floor area, will use total floor area.')
conditioned_floor_area = total_floor_area
end
# get climate zone value
climate_zone = OpenstudioStandards::Weather.model_get_climate_zone(model)
internal_loads = {}
internal_loads['mech_vent_cfm'] = units_per_bldg * ((0.01 * conditioned_floor_area) + (7.5 * (bedrooms_per_unit + 1.0)))
internal_loads['infiltration_ach'] = if ['1A', '1B', '2A', '2B'].include? climate_zone_value
5.0
else
3.0
end
internal_loads['igain_btu_per_day'] = units_per_bldg * (17_900.0 + (23.8 * conditioned_floor_area) + (4104.0 * bedrooms_per_unit))
internal_loads['internal_mass_lbs'] = total_floor_area * 8.0
return internal_loads
end
# Helper method to make a shortened version of a name that will be readable in a GUI.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param climate_zone [String] ASHRAE climate zone, e.g. 'ASHRAE 169-2013-4A'
# @param building_type [String] the building type
# @param spc_type [String] the space type
# @return [String] string of the model name
def model_make_name(model, climate_zone, building_type, spc_type)
climate_zone = climate_zone.gsub('ClimateZone ', 'CZ')
if climate_zone == 'CZ1-8'
climate_zone = ''
end
case building_type
when 'FullServiceRestaurant'
building_type = 'FullSrvRest'
when 'Hospital'
building_type = 'Hospital'
when 'LargeHotel'
building_type = 'LrgHotel'
when 'LargeOffice'
building_type = 'LrgOffice'
when 'MediumOffice'
building_type = 'MedOffice'
when 'MidriseApartment'
building_type = 'MidApt'
when 'HighriseApartment'
building_type = 'HighApt'
when 'Office'
building_type = 'Office'
when 'Outpatient'
building_type = 'Outpatient'
when 'PrimarySchool'
building_type = 'PriSchl'
when 'QuickServiceRestaurant'
building_type = 'QckSrvRest'
when 'Retail'
building_type = 'Retail'
when 'SecondarySchool'
building_type = 'SecSchl'
when 'SmallHotel'
building_type = 'SmHotel'
when 'SmallOffice'
building_type = 'SmOffice'
when 'StripMall'
building_type = 'StMall'
when 'SuperMarket'
building_type = 'SpMarket'
when 'Warehouse'
building_type = 'Warehouse'
when 'SmallDataCenterLowITE'
building_type = 'SmDCLowITE'
when 'SmallDataCenterHighITE'
building_type = 'SmDCHighITE'
when 'LargeDataCenterLowITE'
building_type = 'LrgDCLowITE'
when 'LargeDataCenterHighITE'
building_type = 'LrgDCHighITE'
when 'Laboratory'
building_type = 'Laboratory'
when 'TallBuilding'
building_type = 'TallBldg'
when 'SuperTallBuilding'
building_type = 'SpTallBldg'
end
parts = [template]
unless building_type.nil?
parts << building_type
end
unless spc_type.nil?
parts << spc_type
end
unless climate_zone.empty?
parts << climate_zone
end
result = parts.join(' - ')
return result
end
# Helper method to find out which climate zone set contains a specific climate zone.
# Returns climate zone set name as String if success, nil if not found.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param climate_zone [String] ASHRAE climate zone, e.g. 'ASHRAE 169-2013-4A'
# @return [String] climate zone set
def model_find_climate_zone_set(model, climate_zone)
result = nil
possible_climate_zone_sets = []
standards_data['climate_zone_sets'].each do |climate_zone_set|
if climate_zone_set['climate_zones'].include?(climate_zone)
possible_climate_zone_sets << climate_zone_set['name']
end
end
# Check the results
if possible_climate_zone_sets.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Cannot find a climate zone set containing #{climate_zone}. Make sure to use ASHRAE standards with ASHRAE climate zones and DEER or CA Title 24 standards with CEC climate zones.")
elsif possible_climate_zone_sets.size > 2
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Found more than 2 climate zone sets containing #{climate_zone}; will return last matching climate zone set.")
end
# Get the climate zone from the possible set
climate_zone_set = model_get_climate_zone_set_from_list(model, possible_climate_zone_sets)
# Check that a climate zone set was found
if climate_zone_set.nil?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Cannot find a climate zone set in standard #{template}")
end
return climate_zone_set
end
# Determine which climate zone to use.
# Defaults to the least specific climate zone set.
# For example, 2A and 2 both contain 2A, so use 2.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param possible_climate_zone_sets [Array] climate zone sets
# @return [String] climate zone ses
def model_get_climate_zone_set_from_list(model, possible_climate_zone_sets)
climate_zone_set = possible_climate_zone_sets.max
return climate_zone_set
end
# This method ensures that all spaces with spacetypes defined contain at least a standardSpaceType appropriate for the template.
# So, if any space with a space type defined does not have a Stnadard spacetype, or is undefined, an error will stop
# with information that the spacetype needs to be defined.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Boolean] returns true if successful, false if not
def model_validate_standards_spacetypes_in_model(model)
error_string = ''
# populate search hash
model.getSpaces.sort.each do |space|
unless space.spaceType.empty?
if space.spaceType.get.standardsSpaceType.empty? || space.spaceType.get.standardsBuildingType.empty?
error_string << "Space: #{space.name} has SpaceType of #{space.spaceType.get.name} but the standardSpaceType or standardBuildingType is undefined. Please use an appropriate standardSpaceType for #{template}\n"
next
else
search_criteria = {
'template' => template,
'building_type' => space.spaceType.get.standardsBuildingType.get,
'space_type' => space.spaceType.get.standardsSpaceType.get
}
# lookup space type properties
space_type_properties = model_find_object(standards_data['space_types'], search_criteria)
if space_type_properties.nil?
error_string << "Could not find spacetype of criteria : #{search_criteria}. Please ensure you have a valid standardSpaceType and stantdardBuildingType defined.\n"
space_type_properties = {}
end
end
end
end
return true if error_string == ''
# else
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', error_string)
return false
end
# Create sorted hash of stories with data need to determine effective number of stories above and below grade
# the key should be the story object, which would allow other measures the ability to for example loop through spaces of the bottom story
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Hash] hash of space types with data in value necessary to determine effective number of stories above and below grade
def model_create_story_hash(model)
story_hash = {}
# loop through stories
model.getBuildingStorys.sort.each do |story|
# skip of story doesn't have any spaces
next if story.spaces.empty?
story_min_z = nil
story_zone_multipliers = []
story_spaces_part_of_floor_area = []
story_spaces_not_part_of_floor_area = []
story_ext_wall_area = 0.0
story_ground_wall_area = 0.0
# loop through space surfaces to find min z value
story.spaces.each do |space|
# skip of space doesn't have any geometry
next if space.surfaces.empty?
# get space multiplier
story_zone_multipliers << space.multiplier
# space part of floor area check
if space.partofTotalFloorArea
story_spaces_part_of_floor_area << space
else
story_spaces_not_part_of_floor_area << space
end
# update exterior wall area (not sure if this is net or gross)
story_ext_wall_area += space.exteriorWallArea
space_min_z = nil
z_points = []
space.surfaces.each do |surface|
surface.vertices.each do |vertex|
z_points << vertex.z
end
# update count of ground wall areas
next if surface.surfaceType != 'Wall'
next if surface.outsideBoundaryCondition != 'Ground'
# @todo make more flexible for slab/basement model.modeling
story_ground_wall_area += surface.grossArea
end
# skip if surface had no vertices
next if z_points.empty?
# update story min_z
space_min_z = z_points.min + space.zOrigin
if story_min_z.nil? || (story_min_z > space_min_z)
story_min_z = space_min_z
end
end
# update story hash
story_hash[story] = {}
story_hash[story][:min_z] = story_min_z
story_hash[story][:multipliers] = story_zone_multipliers
story_hash[story][:part_of_floor_area] = story_spaces_part_of_floor_area
story_hash[story][:not_part_of_floor_area] = story_spaces_not_part_of_floor_area
story_hash[story][:ext_wall_area] = story_ext_wall_area
story_hash[story][:ground_wall_area] = story_ground_wall_area
end
# sort hash by min_z low to high
story_hash = story_hash.sort_by { |k, v| v[:min_z] }
# reassemble into hash after sorting
hash = {}
story_hash.each do |story, props|
hash[story] = props
end
return hash
end
# populate this method
# Determine the effective number of stories above and below grade
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Hash] hash with effective_num_stories_below_grade and effective_num_stories_above_grade
def model_effective_num_stories(model)
below_grade = 0
above_grade = 0
# call model_create_story_hash(model)
story_hash = model_create_story_hash(model)
story_hash.each do |story, hash|
# skip if no spaces in story are included in the building area
next if hash[:part_of_floor_area].empty?
# only count as below grade if ground wall area is greater than ext wall area and story below is also below grade
if above_grade.zero? && (hash[:ground_wall_area] > hash[:ext_wall_area])
below_grade += 1 * hash[:multipliers].min
else
above_grade += 1 * hash[:multipliers].min
end
end
# populate hash
effective_num_stories = {}
effective_num_stories[:below_grade] = below_grade
effective_num_stories[:above_grade] = above_grade
effective_num_stories[:story_hash] = story_hash
return effective_num_stories
end
# create space_type_hash with info such as effective_num_spaces, num_units, num_meds, num_meals
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param trust_effective_num_spaces [Boolean] defaults to false - set to true if modeled every space as a real rpp, vs. space as collection of rooms
# @return [Hash] hash of space types with misc information
# @todo - add code when determining number of units to makeuse of trust_effective_num_spaces arg
def model_create_space_type_hash(model, trust_effective_num_spaces = false)
# assumed class size to deduct teachers from occupant count for classrooms
typical_class_size = 20.0
space_type_hash = {}
model.getSpaceTypes.sort.each do |space_type|
# get standards info
stds_bldg_type = space_type.standardsBuildingType
stds_space_type = space_type.standardsSpaceType
if stds_bldg_type.is_initialized && stds_space_type.is_initialized && !space_type.spaces.empty?
stds_bldg_type = stds_bldg_type.get
stds_space_type = stds_space_type.get
effective_num_spaces = 0
floor_area = 0.0
num_people = 0.0
num_students = 0.0
num_units = 0.0
num_beds = 0.0
num_people_bldg_total = nil # may need this in future, not same as sumo of people for all space types.
num_meals = nil
# determine num_elevators in another method
# determine num_parking_spots in another method
# loop through spaces to get mis values
space_type.spaces.sort.each do |space|
next unless space.partofTotalFloorArea
effective_num_spaces += space.multiplier
floor_area += space.floorArea * space.multiplier
num_people += space.numberOfPeople * space.multiplier
end
# determine number of units
if stds_bldg_type == 'SmallHotel' && stds_space_type.include?('GuestRoom') # doesn't always == GuestRoom so use include?
avg_unit_size = OpenStudio.convert(354.2, 'ft^2', 'm^2').get # calculated from prototype
num_units = floor_area / avg_unit_size
elsif stds_bldg_type == 'LargeHotel' && stds_space_type.include?('GuestRoom')
avg_unit_size = OpenStudio.convert(279.7, 'ft^2', 'm^2').get # calculated from prototype
num_units = floor_area / avg_unit_size
elsif stds_bldg_type == 'MidriseApartment' && stds_space_type.include?('Apartment')
avg_unit_size = OpenStudio.convert(949.9, 'ft^2', 'm^2').get # calculated from prototype
num_units = floor_area / avg_unit_size
elsif stds_bldg_type == 'HighriseApartment' && stds_space_type.include?('Apartment')
avg_unit_size = OpenStudio.convert(949.9, 'ft^2', 'm^2').get # calculated from prototype
num_units = floor_area / avg_unit_size
elsif stds_bldg_type == 'StripMall'
avg_unit_size = OpenStudio.convert(22_500.0 / 10.0, 'ft^2', 'm^2').get # calculated from prototype
num_units = floor_area / avg_unit_size
elsif stds_bldg_type == 'Htl' && (stds_space_type.include?('GuestRmOcc') || stds_space_type.include?('GuestRmUnOcc'))
avg_unit_size = OpenStudio.convert(354.2, 'ft^2', 'm^2').get # calculated from prototype
num_units = floor_area / avg_unit_size
elsif stds_bldg_type == 'MFm' && (stds_space_type.include?('ResBedroom') || stds_space_type.include?('ResLiving'))
avg_unit_size = OpenStudio.convert(949.9, 'ft^2', 'm^2').get # calculated from prototype
num_units = floor_area / avg_unit_size
elsif stds_bldg_type == 'Mtl' && (stds_space_type.include?('GuestRmOcc') || stds_space_type.include?('GuestRmUnOcc'))
avg_unit_size = OpenStudio.convert(354.2, 'ft^2', 'm^2').get # calculated from prototype
num_units = floor_area / avg_unit_size
elsif stds_bldg_type == 'Nrs' && stds_space_type.include?('PatientRoom')
avg_unit_size = OpenStudio.convert(354.2, 'ft^2', 'm^2').get # calculated from prototype
num_units = floor_area / avg_unit_size
end
# determine number of beds
if ((stds_bldg_type == 'Hospital') && ['PatRoom', 'ICU_PatRm', 'ICU_Open'].include?(stds_space_type)) ||
((stds_bldg_type == 'Hsp') && ['PatientRoom', 'HspSurgOutptLab', 'HspNursing'].include?(stds_space_type))
num_beds = num_people
end
# determine number of students
if ['PrimarySchool', 'SecondarySchool', 'EPr', 'ESe', 'ERC', 'EUn', 'ECC'].include?(stds_bldg_type) &&
(stds_space_type == 'Classroom')
num_students += num_people * ((typical_class_size - 1.0) / typical_class_size)
end
space_type_hash[space_type] = {}
space_type_hash[space_type][:stds_bldg_type] = stds_bldg_type
space_type_hash[space_type][:stds_space_type] = stds_space_type
space_type_hash[space_type][:effective_num_spaces] = effective_num_spaces
space_type_hash[space_type][:floor_area] = floor_area
space_type_hash[space_type][:num_people] = num_people
space_type_hash[space_type][:num_students] = num_students
space_type_hash[space_type][:num_units] = num_units
space_type_hash[space_type][:num_beds] = num_beds
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "For #{space_type.name}, floor area = #{OpenStudio.convert(floor_area, 'm^2', 'ft^2').get.round} ft^2.") unless floor_area == 0.0
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "For #{space_type.name}, number of spaces = #{effective_num_spaces}.") unless effective_num_spaces == 0.0
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "For #{space_type.name}, number of units = #{num_units}.") unless num_units == 0.0
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "For #{space_type.name}, number of people = #{num_people.round}.") unless num_people == 0.0
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "For #{space_type.name}, number of students = #{num_students}.") unless num_students == 0.0
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "For #{space_type.name}, number of beds = #{num_beds}.") unless num_beds == 0.0
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "For #{space_type.name}, number of meals = #{num_meals}.") unless num_meals.nil?
else
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Cannot identify standards building type and space type for #{space_type.name}, it won't be added to space_type_hash.")
end
end
return space_type_hash.sort.to_h
end
# This method will limit the subsurface of a given surface_type ("Wall" or "RoofCeiling") to the ratio for the building.
# This method only reduces subsurface sizes at most.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param ratio [Double] ratio
# @param surface_type [String] surface type
# @return [Boolean] returns true if successful, false if not
def apply_limit_to_subsurface_ratio(model, ratio, surface_type = 'Wall')
fdwr = get_outdoor_subsurface_ratio(model, surface_type)
if fdwr <= ratio
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Building FDWR of #{fdwr} is already lower than limit of #{ratio.round}%.")
return true
end
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "Reducing the size of all windows (by shrinking to centroid) to reduce window area down to the limit of #{ratio.round}%.")
# Determine the factors by which to reduce the window / door area
mult = ratio / fdwr
# Reduce the window area if any of the categories necessary
model.getSpaces.sort.each do |space|
# Loop through all surfaces in this space
space.surfaces.sort.each do |surface|
# Skip non-outdoor surfaces
next unless surface.outsideBoundaryCondition == 'Outdoors'
# Skip non-walls
next unless surface.surfaceType == surface_type
# Subsurfaces in this surface
surface.subSurfaces.sort.each do |ss|
# Reduce the size of the window
red = 1.0 - mult
OpenstudioStandards::Geometry.sub_surface_reduce_area_by_percent_by_shrinking_toward_centroid(ss, red)
end
end
end
return true
end
# This method return the building ratio of subsurface_area / surface_type_area
# where surface_type can be "Wall" or "RoofCeiling"
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param surface_type [String] surface type
# @return [Double] surface ratio
def get_outdoor_subsurface_ratio(model, surface_type = 'Wall')
surface_area = 0.0
sub_surface_area = 0
all_surfaces = []
all_sub_surfaces = []
model.getSpaces.sort.each do |space|
zone = space.thermalZone
zone_multiplier = nil
next if zone.empty?
zone_multiplier = zone.get.multiplier
space.surfaces.sort.each do |surface|
if (surface.outsideBoundaryCondition == 'Outdoors') && (surface.surfaceType == surface_type)
surface_area += surface.grossArea * zone_multiplier
surface.subSurfaces.sort.each do |sub_surface|
sub_surface_area += sub_surface.grossArea * sub_surface.multiplier * zone_multiplier
end
end
end
end
return fdwr = (sub_surface_area / surface_area)
end
# Loads a osm as a starting point.
#
# @param osm_file [String] path to the .osm file, relative to the /data folder
# @return [Boolean] returns true if successful, false if not
def load_initial_osm(osm_file)
# Load the geometry .osm
unless File.exist?(osm_file)
raise("The initial osm path: #{osm_file} does not exist.")
end
osm_model_path = OpenStudio::Path.new(osm_file.to_s)
# Upgrade version if required.
version_translator = OpenStudio::OSVersion::VersionTranslator.new
model = version_translator.loadModel(osm_model_path).get
validate_initial_model(model)
return model
end
# validate that model contains objects
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Boolean] returns true if valid, false if not
def validate_initial_model(model)
is_valid = true
if model.getBuildingStorys.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', 'Please assign Spaces to BuildingStorys the geometry model.')
is_valid = false
end
if model.getThermalZones.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', 'Please assign Spaces to ThermalZones the geometry model.')
is_valid = false
end
if model.getBuilding.standardsNumberOfStories.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', 'Please define Building.standardsNumberOfStories the geometry model.')
is_valid = false
end
if model.getBuilding.standardsNumberOfAboveGroundStories.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', 'Please define Building.standardsNumberOfAboveStories in the geometry model.')
is_valid = false
end
if @space_type_map.nil? || @space_type_map.empty?
@space_type_map = get_space_type_maps_from_model(model)
if @space_type_map.nil? || @space_type_map.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "Please assign SpaceTypes in the geometry model or in standards database #{@space_type_map}.")
is_valid = false
else
@space_type_map = @space_type_map.sort.to_h
OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', 'Loaded space type map from model')
end
end
# ensure that model is intersected correctly.
model.getSpaces.each { |space1| model.getSpaces.each { |space2| space1.intersectSurfaces(space2) } }
# Get multipliers from TZ in model. Need this for HVAC contruction.
@space_multiplier_map = {}
model.getSpaces.sort.each do |space|
@space_multiplier_map[space.name.get] = space.multiplier if space.multiplier > 1
end
OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', 'Finished adding geometry')
unless @space_multiplier_map.empty?
OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', "Found multipliers for space #{@space_multiplier_map}")
end
return is_valid
end
# Determines how ventilation for the standard is specified.
# When 'Sum', all min OA flow rates are added up. Commonly used by 90.1.
# When 'Maximum', only the biggest OA flow rate. Used by T24.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [String] the ventilation method, either Sum or Maximum
def model_ventilation_method(model)
building_data = model_get_building_properties(model)
building_type = building_data['building_type']
if building_type == 'Laboratory'
# Laboratory has multiple criteria on ventilation, pick the greatest
ventilation_method = 'Maximum'
else
ventilation_method = 'Sum'
end
return ventilation_method
end
# Removes all of the unused ResourceObjects
# (Curves, ScheduleDay, Material, etc.) from the model.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Boolean] returns true if successful, false if not
def model_remove_unused_resource_objects(model)
start_size = model.objects.size
model.getResourceObjects.sort.each do |obj|
if obj.directUseCount.zero?
OpenStudio.logFree(OpenStudio::Debug, 'openstudio.standards.Model', "#{obj.name} is unused; it will be removed.")
model.removeObject(obj.handle)
end
end
end_size = model.objects.size
OpenStudio.logFree(OpenStudio::Info, 'openstudio.standards.Model', "The model started with #{start_size} objects and finished with #{end_size} objects after removing unused resource objects.")
return true
end
private
def model_apply_userdata_outdoor_air(model)
return true
end
# This function checks whether it is required to adjust the window to wall ratio based on the model WWR and wwr limit.
# @param wwr_limit [Double] window to wall ratio limit
# @param wwr_list [Array] list of wwr of zone conditioning category in a building area type category - residential, nonresidential and semiheated
# @return [Boolean] True, require adjustment, false not require adjustment.
def model_does_require_wwr_adjustment?(wwr_limit, wwr_list)
require_adjustment = false
wwr_list.each do |wwr|
require_adjustment = true if wwr > wwr_limit
end
return require_adjustment
end
# The function is used for codes that requires to adjusted wwr based on building categories for all other types
#
# @param bat [String] building area type category
# @param wwr_list [Array] list of wwr of zone conditioning category in a building area type category - residential, nonresidential and semiheated
# @return [Double] return adjusted wwr_limit
def model_get_bat_wwr_target(bat, wwr_list)
return 40.0
end
# Readjusted the WWR for surfaces previously has no windows to meet the
# overall WWR requirement.
# This function shall only be called if the maximum WWR value for surfaces with fenestration is lower than 90% due to
# accommodating the total door surface areas
#
# @param residual_ratio [Double] the ratio of residual surfaces among the total wall surface area with no fenestrations
# @param space [OpenStudio::Model:Space] a space
# @param model [OpenStudio::Model::Model] openstudio model
# @return [Boolean] returns true if successful, false if not
def model_readjust_surface_wwr(residual_ratio, space, model)
return true
end
# Helper method to fill in hourly values
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param day_sch [OpenStudio::Model::ScheduleDay] schedule day object
# @param sch_type [String] Constant or Hourly
# @param values [Array<Double>]
# @return [Boolean] returns true if successful, false if not
def model_add_vals_to_sch(model, day_sch, sch_type, values)
if sch_type == 'Constant'
day_sch.addValue(OpenStudio::Time.new(0, 24, 0, 0), values[0])
elsif sch_type == 'Hourly'
(0..23).each do |i|
next if values[i] == values[i + 1]
day_sch.addValue(OpenStudio::Time.new(0, i + 1, 0, 0), values[i])
end
else
OpenStudio.logFree(OpenStudio::Error, 'openstudio.standards.Model', "Schedule type: #{sch_type} is not recognized. Valid choices are 'Constant' and 'Hourly'.")
end
end
# Modify the existing service water heating loops to match the baseline required heating type.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param building_type [String] the building type
# @return [Boolean] returns true if successful, false if not
# @author Julien Marrec
def model_apply_baseline_swh_loops(model, building_type)
model.getPlantLoops.sort.each do |plant_loop|
# Skip non service water heating loops
next unless plant_loop_swh_loop?(plant_loop)
# Rename the loop to avoid accidentally hooking up the HVAC systems to this loop later.
plant_loop.setName('Service Water Heating Loop')
htg_fuels, combination_system, storage_capacity, total_heating_capacity = plant_loop_swh_system_type(plant_loop)
# htg_fuels.size == 0 shoudln't happen
electric = true
if htg_fuels.include?('NaturalGas') ||
htg_fuels.include?('Propane') ||
htg_fuels.include?('PropaneGas') ||
htg_fuels.include?('FuelOilNo1') ||
htg_fuels.include?('FuelOilNo2') ||
htg_fuels.include?('Coal') ||
htg_fuels.include?('Diesel') ||
htg_fuels.include?('Gasoline')
electric = false
end
# Per Table G3.1 11.e, if the baseline system was a combination of heating and service water heating,
# delete all heating equipment and recreate a WaterHeater:Mixed.
if combination_system
plant_loop.supplyComponents.each do |component|
# Get the object type
obj_type = component.iddObjectType.valueName.to_s
next if ['OS_Node', 'OS_Pump_ConstantSpeed', 'OS_Pump_VariableSpeed', 'OS_Connector_Splitter', 'OS_Connector_Mixer', 'OS_Pipe_Adiabatic'].include?(obj_type)
component.remove
end
water_heater = OpenStudio::Model::WaterHeaterMixed.new(model)
water_heater.setName('Baseline Water Heater')
water_heater.setHeaterMaximumCapacity(total_heating_capacity)
water_heater.setTankVolume(storage_capacity)
plant_loop.addSupplyBranchForComponent(water_heater)
if electric
# G3.1.11.b: If electric, WaterHeater:Mixed with electric resistance
water_heater.setHeaterFuelType('Electricity')
water_heater.setHeaterThermalEfficiency(1.0)
else
# @todo for now, just get the first fuel that isn't Electricity
# A better way would be to count the capacities associated
# with each fuel type and use the preponderant one
fuels = htg_fuels - ['Electricity']
fossil_fuel_type = fuels[0]
water_heater.setHeaterFuelType(fossil_fuel_type)
water_heater.setHeaterThermalEfficiency(0.8)
end
# If it's not a combination heating and service water heating system
# just change the fuel type of all water heaters on the system
# to electric resistance if it's electric
else
if electric
plant_loop.supplyComponents.each do |component|
next unless component.to_WaterHeaterMixed.is_initialized
water_heater = component.to_WaterHeaterMixed.get
# G3.1.11.b: If electric, WaterHeater:Mixed with electric resistance
water_heater.setHeaterFuelType('Electricity')
water_heater.setHeaterThermalEfficiency(1.0)
end
end
end
end
# Set the water heater fuel types if it's 90.1-2013
model.getWaterHeaterMixeds.sort.each do |water_heater|
water_heater_mixed_apply_prm_baseline_fuel_type(water_heater, building_type)
end
return true
end
# This method goes through certain types of EnergyManagementSystem variables and replaces UIDs with object names.
# This should be done by the forward translator, and this code should be removed after this bug is fixed:
# https://github.com/NREL/OpenStudio/issues/2598
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Boolean] returns true if successful, false if not
# @todo remove this method after OpenStudio issue #2598 is fixed.
def model_temp_fix_ems_references(model)
# Internal Variables
model.getEnergyManagementSystemInternalVariables.sort.each do |var|
# Get the reference field value
ref = var.internalDataIndexKeyName
# Convert to UUID
uid = OpenStudio.toUUID(ref)
# Get the model object with this UID
obj = model.getModelObject(uid)
# If it exists, replace the UID with the object name
if obj.is_initialized
var.setInternalDataIndexKeyName(obj.get.name.get)
end
end
return true
end
# This method is a catch-all run at the end of create-baseline to make final adjustements to HVAC capacities
# to account for recent model changes
# @author Doug Maddox, PNNL
# @param model
def model_refine_size_dependent_values(model, sizing_run_dir)
return true
end
# This method rotates the building model from its original position
#
# @param model [OpenStudio::Model::Model] OpenStudio Model object
# @param degs [Integer] Degress of rotation from original position
#
# @return [OpenStudio::Model::Model] OpenStudio Model object
def model_rotate(model, degs)
building = model.getBuilding
org_north_axis = building.northAxis
building.setNorthAxis(org_north_axis + degs)
OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', "The model was rotated of #{degs} degrees from its original position.")
return model
end
# Loads a geometry osm as a starting point.
#
# @param osm_model_path [String] path to the .osm file, relative to the /data folder
# @return [OpenStudio::Model::Model] model object
def load_user_geometry_osm(osm_model_path:)
version_translator = OpenStudio::OSVersion::VersionTranslator.new
model = version_translator.loadModel(osm_model_path)
# Check that the model loaded successfully
if model.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "Version translation failed for #{osm_model_path}")
return false
end
model = model.get
# Check for expected characteristics of geometry model
if model.getBuildingStorys.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "Please assign Spaces to BuildingStorys in the geometry model: #{osm_model_path}.")
end
if model.getThermalZones.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "Please assign Spaces to ThermalZones in the geometry model: #{osm_model_path}.")
end
if model.getBuilding.standardsNumberOfStories.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "Please define Building.standardsNumberOfStories in the geometry model #{osm_model_path}.")
end
if model.getBuilding.standardsNumberOfAboveGroundStories.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "Please define Building.standardsNumberOfAboveStories in the geometry model#{osm_model_path}.")
end
if @space_type_map.nil? || @space_type_map.empty?
@space_type_map = get_space_type_maps_from_model(model)
if @space_type_map.nil? || @space_type_map.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "Please assign SpaceTypes in the geometry model: #{osm_model_path} or in standards database #{@space_type_map}.")
else
@space_type_map = @space_type_map.sort.to_h
OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', "Loaded space type map from osm file: #{osm_model_path}")
end
end
return model
end
# Loads a osm as a starting point.
#
# @param osm_file [String] path to the .osm file, relative to the /data folder
# @return [OpenStudio::Model::Model] model object, false if not
def load_geometry_osm(osm_file)
# Load the geometry .osm from relative to the data folder
osm_model_path = "../../../data/#{osm_file}"
# Load the .osm depending on whether running from normal gem location
# or from the embedded location in the OpenStudio CLI
if File.dirname(__FILE__)[0] == ':'
# running from embedded location in OpenStudio CLI
geom_model_string = load_resource_relative(osm_model_path)
version_translator = OpenStudio::OSVersion::VersionTranslator.new
model = version_translator.loadModelFromString(geom_model_string)
else
abs_path = File.join(File.dirname(__FILE__), osm_model_path)
version_translator = OpenStudio::OSVersion::VersionTranslator.new
model = version_translator.loadModel(abs_path)
end
# Check that the model loaded successfully
if model.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "Version translation failed for #{osm_model_path}")
return false
end
model = model.get
# Check for expected characteristics of geometry model
if model.getBuildingStorys.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "Please assign Spaces to BuildingStorys in the geometry model: #{osm_model_path}.")
end
if model.getThermalZones.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "Please assign Spaces to ThermalZones in the geometry model: #{osm_model_path}.")
end
if model.getBuilding.standardsNumberOfStories.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "Please define Building.standardsNumberOfStories in the geometry model #{osm_model_path}.")
end
if model.getBuilding.standardsNumberOfAboveGroundStories.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "Please define Building.standardsNumberOfAboveStories in the geometry model#{osm_model_path}.")
end
if @space_type_map.nil? || @space_type_map.empty?
@space_type_map = get_space_type_maps_from_model(model)
if @space_type_map.nil? || @space_type_map.empty?
OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "Please assign SpaceTypes in the geometry model: #{osm_model_path} or in standards database #{@space_type_map}.")
else
@space_type_map = @space_type_map.sort.to_h
OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', "Loaded space type map from osm file: #{osm_model_path}")
end
end
return model
end
# Retrieves the lowest story in a model
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [OpenStudio::Model::BuildingStory] Lowest story included in the model
def find_lowest_story(model)
min_z_story = 1E+10
lowest_story = nil
model.getSpaces.sort.each do |space|
story = space.buildingStory.get
lowest_story = story if lowest_story.nil?
space_min_z = OpenstudioStandards::Geometry.building_story_get_minimum_height(story)
if space_min_z < min_z_story
min_z_story = space_min_z
lowest_story = story
end
end
return lowest_story
end
# Identifies non mechanically cooled ("nmc") systems, if applicable
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Hash] Zone to nmc system type mapping
def model_identify_non_mechanically_cooled_systems(model)
return true
end
# Indicate if fan power breakdown (supply, return, and relief)
# are needed
#
# @return [Boolean] true if necessary, false otherwise
def model_get_fan_power_breakdown
return false
end
# Determine the surface range of a baseline model.
# The method calculates the window to wall ratio (assuming all spaces are conditioned)
# and select the range based on the calculated window to wall ratio
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param wwr_parameter [Hash] parameters to choose min and max percent of surfaces,
# could be different set in different standard
# @return [Hash] Hash of minimum_percent_of_surface and maximum_percent_of_surface
def model_get_percent_of_surface_range(model, wwr_parameter = {})
return { 'minimum_percent_of_surface' => nil, 'maximum_percent_of_surface' => nil }
end
# Default SAT reset type
#
# @param air_loop_hvac [OpenStudio::Model::AirLoopHVAC] air loop
# @return [String] Returns type of SAT reset
def air_loop_hvac_supply_air_temperature_reset_type(air_loop_hvac)
return 'warmest_zone'
end
# Calculate the window to wall ratio reduction factor
#
# @param multiplier [Double] multiplier of the wwr
# @param surface [OpenStudio::Model:Surface] OpenStudio Surface object
# @param wwr_target [Double] target window to wall ratio
# @param total_wall_m2 [Double] total wall area of the category in m2.
# @param total_wall_with_fene_m2 [Double] total wall area of the category with fenestrations in m2.
# @param total_fene_m2 [Double] total fenestration area
# @param total_plenum_wall_m2 [Double] total sqaure meter of a plenum
# @return [Double] reduction factor
def surface_get_wwr_reduction_ratio(multiplier,
surface,
wwr_building_type: 'All others',
wwr_target: 0.0,
total_wall_m2: 0.0,
total_wall_with_fene_m2: 0.0,
total_fene_m2: 0.0,
total_plenum_wall_m2: 0.0)
return 1.0 - multiplier
end
# A template method that handles the loading of user input data from multiple sources
# include data source from:
# 1. user data csv files
# 2. data from measure and OpenStudio interface
# @param [OpenStudio:model:Model] model
# @param [String] climate_zone
# @param [String] sizing_run_dir
# @param [String] default_hvac_building_type
# @param [String] default_wwr_building_type
# @param [String] default_swh_building_type
# @param [Hash] bldg_type_hvac_zone_hash A hash maps building type for hvac to a list of thermal zones
# @return [Boolean] returns true
def handle_user_input_data(model, climate_zone, sizing_run_dir, default_hvac_building_type, default_wwr_building_type, default_swh_building_type, bldg_type_hvac_zone_hash)
return true
end
# Template method for adding a setpoint manager for a coil control logic to a heating coil.
# ASHRAE 90.1-2019 Appendix G.
#
# @param model [OpenStudio::Model::Model] OpenStudio model
# @param thermal_zones [Array<OpenStudio::Model::ThermalZone>] thermal zone array
# @param coil [OpenStudio::Model::StraightComponent] heating coil
# @return [Boolean] returns true if successful, false if not
def model_set_central_preheat_coil_spm(model, thermal_zones, coil)
return true
end
# Template method for evaluate DCV requirements in the user model
#
# @param model [OpenStudio::Model::Model] OpenStudio model
# @return [Boolean] returns true if successful, false if not
def model_evaluate_dcv_requirements(model)
return true
end
# Check whether the baseline model generation needs to run all four orientations
# The default shall be true
#
# @param run_all_orients [Boolean] user inputs to indicate whether it is required to run all orientations
# @param user_model [OpenStudio::Model::Model] OpenStudio model
# @return [Boolean] return True if all orientation need to be run, False if not
def run_all_orientations(run_all_orients, user_model)
return run_all_orients
end
# Template method for setting DCV in baseline HVAC system if required
#
# @author Xuechen (Jerry) Lei, PNNL
# @param model [OpenStudio::Model::Model] OpenStudio model
# @return [Boolean] returns true if successful, false if not
def model_set_baseline_demand_control_ventilation(model, climate_zone)
return true
end
# Identify the return air type associated with each thermal zone
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @return [Boolean] returns true if successful, false if not
def model_identify_return_air_type(model)
# air-loop based system
model.getThermalZones.each do |zone|
# Conditioning category won't include indirectly conditioned thermal zones
cond_cat = thermal_zone_conditioning_category(zone, OpenstudioStandards::Weather.model_get_climate_zone(model))
# Initialize the return air type
return_air_type = nil
# The thermal zone is conditioned by zonal system
if (cond_cat != 'Unconditioned') && zone.airLoopHVACs.empty?
return_air_type = 'ducted_return_or_direct_to_unit'
end
# Assume that the primary heating and cooling (PHC) system
# is last in the heating and cooling order (ignore DOAS)
#
# Get the heating and cooling PHC components
heating_equipment = zone.equipmentInHeatingOrder[-1]
cooling_equipment = zone.equipmentInCoolingOrder[-1]
if heating_equipment.nil? && cooling_equipment.nil?
next
end
unless heating_equipment.nil?
if heating_equipment.to_ZoneHVACComponent.is_initialized
heating_equipment_type = 'ZoneHVACComponent'
elsif heating_equipment.to_StraightComponent.is_initialized
heating_equipment_type = 'StraightComponent'
end
end
unless cooling_equipment.nil?
if cooling_equipment.to_ZoneHVACComponent.is_initialized
cooling_equipment_type = 'ZoneHVACComponent'
elsif cooling_equipment.to_StraightComponent.is_initialized
cooling_equipment_type = 'StraightComponent'
end
end
# Determine return configuration
if (heating_equipment_type == 'ZoneHVACComponent') && (cooling_equipment_type == 'ZoneHVACComponent')
return_air_type = 'ducted_return_or_direct_to_unit'
else
# Check heating air loop first
if !heating_equipment.nil? && heating_equipment.to_StraightComponent.is_initialized
air_loop = heating_equipment.to_StraightComponent.get.airLoopHVAC.get
return_plenum = air_loop_hvac_return_air_plenum(air_loop)
return_air_type = return_plenum.nil? ? 'ducted_return_or_direct_to_unit' : 'return_plenum'
return_plenum = return_plenum.nil? ? nil : return_plenum.name.to_s
end
# Check cooling air loop second; Assume that return air plenum is the dominant case
if !cooling_equipment.nil? &&
(return_air_type != 'return_plenum') &&
cooling_equipment.to_StraightComponent.is_initialized
air_loop = cooling_equipment.to_StraightComponent.get.airLoopHVAC.get
return_plenum = air_loop_hvac_return_air_plenum(air_loop)
return_air_type = return_plenum.nil? ? 'ducted_return_or_direct_to_unit' : 'return_plenum'
return_plenum = return_plenum.nil? ? nil : return_plenum.name.to_s
end
end
# Catch all
if return_air_type.nil?
return_air_type = 'ducted_return_or_direct_to_unit'
end
# error if zone design air flow rate is not available
if zone.model.version < OpenStudio::VersionString.new('3.6.0')
OpenStudio.logFree(OpenStudio::Error, 'openstudio.Standards.Model', 'Required ThermalZone method .autosizedDesignAirFlowRate is not available in pre-OpenStudio 3.6.0 versions. Use a more recent version of OpenStudio.')
end
zone.additionalProperties.setFeature('return_air_type', return_air_type)
zone.additionalProperties.setFeature('plenum', return_plenum) unless return_plenum.nil?
zone.additionalProperties.setFeature('proposed_model_zone_design_air_flow', zone.autosizedDesignAirFlowRate.to_f)
end
return true
end
# Determine the baseline return air type associated with each zone
#
# @param model [OpenStudio::Model::model] OpenStudio model object
# @param baseline_system_type [String] Baseline system type name
# @param zones [Array] List of zone associated with a system
# @return [Array] Array of length 2, the first item is the name
# of the plenum zone and the second the return air type
def model_determine_baseline_return_air_type(model, baseline_system_type, zones)
return ['', 'ducted_return_or_direct_to_unit'] unless ['PSZ_AC', 'PSZ_HP', 'PVAV_Reheat', 'PVAV_PFP_Boxes', 'VAV_Reheat', 'VAV_PFP_Boxes', 'SZ_VAV', 'SZ_CV'].include?(baseline_system_type)
zone_return_air_type = {}
zones.each do |zone|
if zone.additionalProperties.hasFeature('proposed_model_zone_design_air_flow')
zone_design_air_flow = zone.additionalProperties.getFeatureAsDouble('proposed_model_zone_design_air_flow').get
if zone.additionalProperties.hasFeature('return_air_type')
return_air_type = zone.additionalProperties.getFeatureAsString('return_air_type').get
if zone_return_air_type.keys.include?(return_air_type)
zone_return_air_type[return_air_type] += zone_design_air_flow
else
zone_return_air_type[return_air_type] = zone_design_air_flow
end
if zone.additionalProperties.hasFeature('plenum')
plenum = zone.additionalProperties.getFeatureAsString('plenum').get
if zone_return_air_type.keys.include?('plenum')
if zone_return_air_type['plenum'].keys.include?(plenum)
zone_return_air_type['plenum'][plenum] += zone_design_air_flow
end
else
zone_return_air_type['plenum'] = { plenum => zone_design_air_flow }
end
end
end
end
end
# Find dominant zone return air type and plenum zone
# if the return air type is return air plenum
return_air_types = zone_return_air_type.keys - ['plenum']
return_air_types_score = 0
return_air_type = nil
plenum_score = 0
plenum = nil
return_air_types.each do |return_type|
if zone_return_air_type[return_type] > return_air_types_score
return_air_type = return_type
return_air_types_score = zone_return_air_type[return_type]
end
if return_air_type == 'return_plenum'
zone_return_air_type['plenum'].each_key do |p|
if zone_return_air_type['plenum'][p] > plenum_score
plenum = p
plenum_score = zone_return_air_type['plenum'][p]
end
end
end
end
return plenum, return_air_type
end
# Add reporting tolerances. Default values are based on the suggestions from the PRM-RM.
#
# @param model [OpenStudio::Model::Model] OpenStudio Model
# @param heating_tolerance_deg_f [Double] Tolerance for time heating setpoint not met in degree F
# @param cooling_tolerance_deg_f [Double] Tolerance for time cooling setpoint not met in degree F
# @return [Boolean] returns true if successful, false if not
def model_add_reporting_tolerances(model, heating_tolerance_deg_f: 1.0, cooling_tolerance_deg_f: 1.0)
reporting_tolerances = model.getOutputControlReportingTolerances
heating_tolerance_deg_c = OpenStudio.convert(heating_tolerance_deg_f, 'R', 'K').get
cooling_tolerance_deg_c = OpenStudio.convert(cooling_tolerance_deg_f, 'R', 'K').get
reporting_tolerances.setToleranceforTimeHeatingSetpointNotMet(heating_tolerance_deg_c)
reporting_tolerances.setToleranceforTimeCoolingSetpointNotMet(cooling_tolerance_deg_c)
return true
end
# Apply the standard construction to each surface in the model, based on the construction type currently assigned.
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param climate_zone [String] ASHRAE climate zone, e.g. 'ASHRAE 169-2013-4A'
# @return [Boolean] returns true if successful, false if not
def model_apply_constructions(model, climate_zone, wwr_building_type, wwr_info)
model_apply_standard_constructions(model, climate_zone, wwr_building_type: nil, wwr_info: {})
return true
end
# Generate baseline log to a specific file directory
# @param file_directory [String] file directory
# @return [Boolean] returns true if successful, false if not
def generate_baseline_log(file_directory)
return true
end
# Update ground temperature profile based on the weather file specified in the model
#
# @param model [OpenStudio::Model::Model] OpenStudio model object
# @param climate_zone [String] ASHRAE climate zone, e.g. 'ASHRAE 169-2013-4A'
# @return [Boolean] returns true if successful, false if not
def model_update_ground_temperature_profile(model, climate_zone)
return true
end
end