Contents

class ASHRAE9012010 < ASHRAE901
  # @!group Model

  # 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 90.1-2010.
  def model_create_prm_baseline_building_requires_vlt_sizing_run(model)
    return true # Required for 90.1-2010
  end

  # Determines which system number is used
  # for the baseline system.
  # @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 = 25_000

    # Customization for Xcel EDA.
    # No special retail category
    # for regular 90.1-2010.
    if (custom != 'Xcel Energy CO EDA') && (area_type == 'retail')
      area_type = 'nonresidential'
    end

    case area_type
    when 'residential'
      sys_num = '1_or_2'
    when 'nonresidential'
      # 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
    when 'heatedonly'
      sys_num = '9_or_10'
    when 'retail'
      # Should only be hit by Xcel EDA
      sys_num = '3_or_4'
    end

    return sys_num
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
openstudio-standards-0.7.0	lib/openstudio-standards/standards/ashrae_90_1/ashrae_90_1_2010/ashrae_90_1_2010.Model.rb
openstudio-standards-0.7.0.rc1	lib/openstudio-standards/standards/ashrae_90_1/ashrae_90_1_2010/ashrae_90_1_2010.Model.rb
openstudio-standards-0.6.3	lib/openstudio-standards/standards/ashrae_90_1/ashrae_90_1_2010/ashrae_90_1_2010.Model.rb