class Standard # @!group CoilCoolingDXTwoSpeed # Prototype CoilCoolingDXTwoSpeed object # Enters in default curves for coil by type of coil # @param air_loop_node [] the coil will be placed on this node of the air loop # @param name [String] the name of the system, or nil in which case it will be defaulted # @param schedule [String] name of the availability schedule, or [] Schedule object, or nil in which case default to always on # @param type [String] the type of two speed DX coil to reference the correct curve set def create_coil_cooling_dx_two_speed(model, air_loop_node: nil, name: '2spd DX Clg Coil', schedule: nil, type: nil) clg_coil = OpenStudio::Model::CoilCoolingDXTwoSpeed.new(model) # add to air loop if specified clg_coil.addToNode(air_loop_node) unless air_loop_node.nil? # set coil name clg_coil.setName(name) # set coil availability schedule if schedule.nil? # default always on coil_availability_schedule = model.alwaysOnDiscreteSchedule elsif schedule.class == String coil_availability_schedule = model_add_schedule(model, schedule) if coil_availability_schedule.nil? && schedule == 'alwaysOffDiscreteSchedule' coil_availability_schedule = model.alwaysOffDiscreteSchedule elsif coil_availability_schedule.nil? coil_availability_schedule = model.alwaysOnDiscreteSchedule end elsif !schedule.to_Schedule.empty? coil_availability_schedule = schedule else coil_availability_schedule = model.alwaysOnDiscreteSchedule end clg_coil.setAvailabilitySchedule(coil_availability_schedule) clg_cap_f_of_temp = nil clg_cap_f_of_flow = nil clg_energy_input_ratio_f_of_temp = nil clg_energy_input_ratio_f_of_flow = nil clg_part_load_ratio = nil clg_cap_f_of_temp_low_spd = nil clg_energy_input_ratio_f_of_temp_low_spd = nil # curve sets if type == 'OS default' # use OS defaults elsif type == 'Residential Minisplit HP' # Performance curves # These coefficients are in SI units cool_cap_ft_coeffs_si = [0.7531983499655835, 0.003618193903031667, 0.0, 0.006574385031351544, -6.87181191015432e-05, 0.0] cool_eir_ft_coeffs_si = [-0.06376924779982301, -0.0013360593470367282, 1.413060577993827e-05, 0.019433076486584752, -4.91395947154321e-05, -4.909341249475308e-05] cool_cap_fflow_coeffs = [1, 0, 0] cool_eir_fflow_coeffs = [1, 0, 0] cool_plf_fplr_coeffs = [0.89, 0.11, 0] # Make the curves clg_cap_f_of_temp = create_curve_biquadratic(model, cool_cap_ft_coeffs_si, 'Cool-Cap-fT', 0, 100, 0, 100, nil, nil) clg_cap_f_of_flow = create_curve_quadratic(model, cool_cap_fflow_coeffs, 'Cool-Cap-fFF', 0, 2, 0, 2, is_dimensionless = true) clg_energy_input_ratio_f_of_temp = create_curve_biquadratic(model, cool_eir_ft_coeffs_si, 'Cool-EIR-fT', 0, 100, 0, 100, nil, nil) clg_energy_input_ratio_f_of_flow = create_curve_quadratic(model, cool_eir_fflow_coeffs, 'Cool-EIR-fFF', 0, 2, 0, 2, is_dimensionless = true) clg_part_load_ratio = create_curve_quadratic(model, cool_plf_fplr_coeffs, 'Cool-PLF-fPLR', 0, 1, 0, 1, is_dimensionless = true) clg_cap_f_of_temp_low_spd = create_curve_biquadratic(model, cool_cap_ft_coeffs_si, 'Cool-Cap-fT', 0, 100, 0, 100, nil, nil) clg_energy_input_ratio_f_of_temp_low_spd = create_curve_biquadratic(model, cool_eir_ft_coeffs_si, 'Cool-EIR-fT', 0, 100, 0, 100, nil, nil) clg_coil.setRatedLowSpeedSensibleHeatRatio(0.73) clg_coil.setCondenserType('AirCooled') else # default curve set, type == 'PSZ-AC' || 'Split AC' || 'PTAC' clg_cap_f_of_temp = OpenStudio::Model::CurveBiquadratic.new(model) clg_cap_f_of_temp.setCoefficient1Constant(0.42415) clg_cap_f_of_temp.setCoefficient2x(0.04426) clg_cap_f_of_temp.setCoefficient3xPOW2(-0.00042) clg_cap_f_of_temp.setCoefficient4y(0.00333) clg_cap_f_of_temp.setCoefficient5yPOW2(-0.00008) clg_cap_f_of_temp.setCoefficient6xTIMESY(-0.00021) clg_cap_f_of_temp.setMinimumValueofx(17.0) clg_cap_f_of_temp.setMaximumValueofx(22.0) clg_cap_f_of_temp.setMinimumValueofy(13.0) clg_cap_f_of_temp.setMaximumValueofy(46.0) clg_cap_f_of_flow = OpenStudio::Model::CurveQuadratic.new(model) clg_cap_f_of_flow.setCoefficient1Constant(0.77136) clg_cap_f_of_flow.setCoefficient2x(0.34053) clg_cap_f_of_flow.setCoefficient3xPOW2(-0.11088) clg_cap_f_of_flow.setMinimumValueofx(0.75918) clg_cap_f_of_flow.setMaximumValueofx(1.13877) clg_energy_input_ratio_f_of_temp = OpenStudio::Model::CurveBiquadratic.new(model) clg_energy_input_ratio_f_of_temp.setCoefficient1Constant(1.23649) clg_energy_input_ratio_f_of_temp.setCoefficient2x(-0.02431) clg_energy_input_ratio_f_of_temp.setCoefficient3xPOW2(0.00057) clg_energy_input_ratio_f_of_temp.setCoefficient4y(-0.01434) clg_energy_input_ratio_f_of_temp.setCoefficient5yPOW2(0.00063) clg_energy_input_ratio_f_of_temp.setCoefficient6xTIMESY(-0.00038) clg_energy_input_ratio_f_of_temp.setMinimumValueofx(17.0) clg_energy_input_ratio_f_of_temp.setMaximumValueofx(22.0) clg_energy_input_ratio_f_of_temp.setMinimumValueofy(13.0) clg_energy_input_ratio_f_of_temp.setMaximumValueofy(46.0) clg_energy_input_ratio_f_of_flow = OpenStudio::Model::CurveQuadratic.new(model) clg_energy_input_ratio_f_of_flow.setCoefficient1Constant(1.20550) clg_energy_input_ratio_f_of_flow.setCoefficient2x(-0.32953) clg_energy_input_ratio_f_of_flow.setCoefficient3xPOW2(0.12308) clg_energy_input_ratio_f_of_flow.setMinimumValueofx(0.75918) clg_energy_input_ratio_f_of_flow.setMaximumValueofx(1.13877) clg_part_load_ratio = OpenStudio::Model::CurveQuadratic.new(model) clg_part_load_ratio.setCoefficient1Constant(0.77100) clg_part_load_ratio.setCoefficient2x(0.22900) clg_part_load_ratio.setCoefficient3xPOW2(0.0) clg_part_load_ratio.setMinimumValueofx(0.0) clg_part_load_ratio.setMaximumValueofx(1.0) clg_cap_f_of_temp_low_spd = OpenStudio::Model::CurveBiquadratic.new(model) clg_cap_f_of_temp_low_spd.setCoefficient1Constant(0.42415) clg_cap_f_of_temp_low_spd.setCoefficient2x(0.04426) clg_cap_f_of_temp_low_spd.setCoefficient3xPOW2(-0.00042) clg_cap_f_of_temp_low_spd.setCoefficient4y(0.00333) clg_cap_f_of_temp_low_spd.setCoefficient5yPOW2(-0.00008) clg_cap_f_of_temp_low_spd.setCoefficient6xTIMESY(-0.00021) clg_cap_f_of_temp_low_spd.setMinimumValueofx(17.0) clg_cap_f_of_temp_low_spd.setMaximumValueofx(22.0) clg_cap_f_of_temp_low_spd.setMinimumValueofy(13.0) clg_cap_f_of_temp_low_spd.setMaximumValueofy(46.0) clg_energy_input_ratio_f_of_temp_low_spd = OpenStudio::Model::CurveBiquadratic.new(model) clg_energy_input_ratio_f_of_temp_low_spd.setCoefficient1Constant(1.23649) clg_energy_input_ratio_f_of_temp_low_spd.setCoefficient2x(-0.02431) clg_energy_input_ratio_f_of_temp_low_spd.setCoefficient3xPOW2(0.00057) clg_energy_input_ratio_f_of_temp_low_spd.setCoefficient4y(-0.01434) clg_energy_input_ratio_f_of_temp_low_spd.setCoefficient5yPOW2(0.00063) clg_energy_input_ratio_f_of_temp_low_spd.setCoefficient6xTIMESY(-0.00038) clg_energy_input_ratio_f_of_temp_low_spd.setMinimumValueofx(17.0) clg_energy_input_ratio_f_of_temp_low_spd.setMaximumValueofx(22.0) clg_energy_input_ratio_f_of_temp_low_spd.setMinimumValueofy(13.0) clg_energy_input_ratio_f_of_temp_low_spd.setMaximumValueofy(46.0) clg_coil.setRatedLowSpeedSensibleHeatRatio(OpenStudio::OptionalDouble.new(0.69)) clg_coil.setBasinHeaterCapacity(10) clg_coil.setBasinHeaterSetpointTemperature(2.0) end clg_coil.setTotalCoolingCapacityFunctionOfTemperatureCurve(clg_cap_f_of_temp) unless clg_cap_f_of_temp.nil? clg_coil.setTotalCoolingCapacityFunctionOfFlowFractionCurve(clg_cap_f_of_flow) unless clg_cap_f_of_flow.nil? clg_coil.setEnergyInputRatioFunctionOfTemperatureCurve(clg_energy_input_ratio_f_of_temp) unless clg_energy_input_ratio_f_of_temp.nil? clg_coil.setEnergyInputRatioFunctionOfFlowFractionCurve(clg_energy_input_ratio_f_of_flow) unless clg_energy_input_ratio_f_of_flow.nil? clg_coil.setPartLoadFractionCorrelationCurve(clg_part_load_ratio) unless clg_part_load_ratio.nil? clg_coil.setLowSpeedTotalCoolingCapacityFunctionOfTemperatureCurve(clg_cap_f_of_temp_low_spd) unless clg_cap_f_of_temp_low_spd.nil? clg_coil.setLowSpeedEnergyInputRatioFunctionOfTemperatureCurve(clg_energy_input_ratio_f_of_temp_low_spd) unless clg_energy_input_ratio_f_of_temp_low_spd.nil? return clg_coil end end