Class: OpenStudio::Model::Model

Inherits:
Object
  • Object
show all
Defined in:
lib/buildingsync/helpers/Model.hvac.rb

Overview

Model class

Instance Method Summary collapse

Instance Method Details

#add_cbecs_hvac_system(standard, system_type, zones) ⇒ Object

Adds the HVAC system as derived from the combinations of CBECS 2012 MAINHT and MAINCL fields. Mapping between combinations and HVAC systems per www.nrel.gov/docs/fy08osti/41956.pdf Table C-31

Parameters:

  • standard (Standard)
  • system_type (String)
  • zones (Array<OpenStudio::Model::ThermalZone>) 


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# File 'lib/buildingsync/helpers/Model.hvac.rb', line 13

def add_cbecs_hvac_system(standard, system_type, zones)
  case system_type
  when 'PTAC with hot water heat'
    standard.model_add_hvac_system(self, 'PTAC', ht = 'NaturalGas', znht = nil, cl = 'Electricity', zones)

  when 'PTAC with gas coil heat'
    standard.model_add_hvac_system(self, 'PTAC', ht = nil, znht = 'NaturalGas', cl = 'Electricity', zones)

  when 'PTAC with electric baseboard heat'
    standard.model_add_hvac_system(self, 'PTAC', ht = nil, znht = nil, cl = 'Electricity', zones)
    standard.model_add_hvac_system(self, 'Baseboards', ht = 'Electricity', znht = nil, cl = nil, zones)

  when 'PTAC with no heat'
    standard.model_add_hvac_system(self, 'PTAC', ht = nil, znht = nil, cl = 'Electricity', zones)

  when 'PTAC with district hot water heat'
    standard.model_add_hvac_system(self, 'PTAC', ht = 'DistrictHeating', znht = nil, cl = 'Electricity', zones)

  when 'PTHP'
    standard.model_add_hvac_system(self, 'PTHP', ht = 'Electricity', znht = nil, cl = 'Electricity', zones)

  when 'PSZ-AC with gas coil heat'
    standard.model_add_hvac_system(self, 'PSZ-AC', ht = 'NaturalGas', znht = nil, cl = 'Electricity', zones)

  when 'PSZ-AC with electric baseboard heat'
    standard.model_add_hvac_system(self, 'PSZ-AC', ht = nil, znht = nil, cl = 'Electricity', zones)
    standard.model_add_hvac_system(self, 'Baseboards', ht = 'Electricity', znht = nil, cl = nil, zones)

  when 'PSZ-AC with no heat'
    standard.model_add_hvac_system(self, 'PSZ-AC', ht = nil, znht = nil, cl = 'Electricity', zones)

  when 'PSZ-AC with district hot water heat'
    standard.model_add_hvac_system(self, 'PSZ-AC', ht = 'DistrictHeating', znht = nil, cl = 'Electricity', zones)

  when 'PSZ-HP'
    standard.model_add_hvac_system(self, 'PSZ-HP', ht = 'Electricity', znht = nil, cl = 'Electricity', zones)

  when 'Fan coil district chilled water with no heat'
    standard.model_add_hvac_system(self, 'Fan Coil', ht = nil, znht = nil, cl = 'DistrictCooling', zones)

  when 'Fan coil district chilled water and boiler'
    standard.model_add_hvac_system(self, 'Fan Coil', ht = 'NaturalGas', znht = nil, cl = 'DistrictCooling', zones)

  when 'Fan coil district chilled water unit heaters'
    standard.model_add_hvac_system(self, 'Fan Coil', ht = nil, znht = nil, cl = 'DistrictCooling', zones)
    standard.model_add_hvac_system(self, 'Unit Heaters', ht = 'NaturalGas', znht = nil, cl = nil, zones)

  when 'Fan coil district chilled water electric baseboard heat'
    standard.model_add_hvac_system(self, 'Fan Coil', ht = nil, znht = nil, cl = 'DistrictCooling', zones)
    standard.model_add_hvac_system(self, 'Baseboards', ht = 'Electricity', znht = nil, cl = nil, zones)

  when 'Fan coil district hot and chilled water'
    standard.model_add_hvac_system(self, 'Fan Coil', ht = 'DistrictHeating', znht = nil, cl = 'DistrictCooling', zones)

  when 'Fan coil district hot water and chiller'
    standard.model_add_hvac_system(self, 'Fan Coil', ht = 'DistrictHeating', znht = nil, cl = 'Electricity', zones)

  when 'Fan coil chiller with no heat'
    standard.model_add_hvac_system(self, 'Fan Coil', ht = nil, znht = nil, cl = 'Electricity', zones)

  when 'Baseboard district hot water heat'
    standard.model_add_hvac_system(self, 'Baseboards', ht = 'DistrictHeating', znht = nil, cl = nil, zones)

  when 'Baseboard district hot water heat with direct evap coolers'
    standard.model_add_hvac_system(self, 'Baseboards', ht = 'DistrictHeating', znht = nil, cl = nil, zones)
    standard.model_add_hvac_system(self, 'Evaporative Cooler', ht = nil, znht = nil, cl = 'Electricity', zones)

  when 'Baseboard electric heat'
    standard.model_add_hvac_system(self, 'Baseboards', ht = 'Electricity', znht = nil, cl = nil, zones)

  when 'Baseboard electric heat with direct evap coolers'
    standard.model_add_hvac_system(self, 'Baseboards', ht = 'Electricity', znht = nil, cl = nil, zones)
    standard.model_add_hvac_system(self, 'Evaporative Cooler', ht = nil, znht = nil, cl = 'Electricity', zones)

  when 'Baseboard hot water heat'
    standard.model_add_hvac_system(self, 'Baseboards', ht = 'NaturalGas', znht = nil, cl = nil, zones)

  when 'Baseboard hot water heat with direct evap coolers'
    standard.model_add_hvac_system(self, 'Baseboards', ht = 'NaturalGas', znht = nil, cl = nil, zones)
    standard.model_add_hvac_system(self, 'Evaporative Cooler', ht = nil, znht = nil, cl = 'Electricity', zones)

  when 'Window AC with no heat'
    standard.model_add_hvac_system(self, 'Window AC', ht = nil, znht = nil, cl = 'Electricity', zones)

  when 'Window AC with forced air furnace'
    standard.model_add_hvac_system(self, 'Window AC', ht = nil, znht = nil, cl = 'Electricity', zones)
    standard.model_add_hvac_system(self, 'Forced Air Furnace', ht = 'NaturalGas', znht = nil, cl = nil, zones)

  when 'Window AC with district hot water baseboard heat'
    standard.model_add_hvac_system(self, 'Window AC', ht = nil, znht = nil, cl = 'Electricity', zones)
    standard.model_add_hvac_system(self, 'Baseboards', ht = 'DistrictHeating', znht = nil, cl = nil, zones)

  when 'Window AC with hot water baseboard heat'
    standard.model_add_hvac_system(self, 'Window AC', ht = nil, znht = nil, cl = 'Electricity', zones)
    standard.model_add_hvac_system(self, 'Baseboards', ht = 'NaturalGas', znht = nil, cl = nil, zones)

  when 'Window AC with electric baseboard heat'
    standard.model_add_hvac_system(self, 'Window AC', ht = nil, znht = nil, cl = 'Electricity', zones)
    standard.model_add_hvac_system(self, 'Baseboards', ht = 'Electricity', znht = nil, cl = nil, zones)

  when 'Window AC with unit heaters'
    standard.model_add_hvac_system(self, 'Window AC', ht = nil, znht = nil, cl = 'Electricity', zones)
    standard.model_add_hvac_system(self, 'Unit Heaters', ht = 'NaturalGas', znht = nil, cl = nil, zones)

  when 'Direct evap coolers'
    standard.model_add_hvac_system(self, 'Evaporative Cooler', ht = nil, znht = nil, cl = 'Electricity', zones)

  when 'Direct evap coolers with unit heaters'
    standard.model_add_hvac_system(self, 'Evaporative Cooler', ht = nil, znht = nil, cl = 'Electricity', zones)
    standard.model_add_hvac_system(self, 'Unit Heaters', ht = 'NaturalGas', znht = nil, cl = nil, zones)

  when 'Unit heaters'
    standard.model_add_hvac_system(self, 'Unit Heaters', ht = 'NaturalGas', znht = nil, cl = nil, zones)

  when 'Heat pump heat with no cooling'
    standard.model_add_hvac_system(self, 'Residential Air Source Heat Pump', ht = nil, znht = nil, cl = 'Electricity', zones)

  when 'Heat pump heat with direct evap cooler'
    # standard.model_add_hvac_system(self, 'Residential Air Source Heat Pump', ht=nil, znht=nil, cl='Electricity', zones)
    # Using PTHP to represent zone heat pump for this configuration
    # because only one airloop may be connected to each thermal zone.
    standard.model_add_hvac_system(self, 'PTHP', ht = 'Electricity', znht = nil, cl = 'Electricity', zones)
    # disable the cooling coils in all the PTHPs
    getZoneHVACPackagedTerminalHeatPumps.each do |pthp|
      clg_coil = pthp.heatingCoil.to_CoilHeatingDXSingleSpeed.get
      clg_coil.setAvailabilitySchedule(alwaysOffDiscreteSchedule)
    end
    standard.model_add_hvac_system(self, 'Evaporative Cooler', ht = nil, znht = nil, cl = 'Electricity', zones)

  when 'VAV with reheat'
    standard.model_add_hvac_system(self, 'VAV Reheat', ht = 'NaturalGas', znht = 'NaturalGas', cl = 'Electricity', zones)

  when 'VAV with PFP boxes'
    standard.model_add_hvac_system(self, 'VAV PFP Boxes', ht = 'NaturalGas', znht = 'NaturalGas', cl = 'Electricity', zones)

  when 'VAV with gas reheat'
    standard.model_add_hvac_system(self, 'VAV Gas Reheat', ht = 'NaturalGas', ht = 'NaturalGas', cl = 'Electricity', zones)

  when 'VAV with zone unit heaters'
    standard.model_add_hvac_system(self, 'VAV No Reheat', ht = 'NaturalGas', znht = nil, cl = 'Electricity', zones)
    standard.model_add_hvac_system(self, 'Unit Heaters', ht = 'NaturalGas', znht = nil, cl = nil, zones)

  when 'VAV with electric baseboard heat'
    standard.model_add_hvac_system(self, 'VAV No Reheat', ht = 'NaturalGas', znht = nil, cl = 'Electricity', zones)
    standard.model_add_hvac_system(self, 'Baseboards', ht = 'Electricity', znht = nil, cl = nil, zones)

  when 'VAV cool with zone heat pump heat'
    standard.model_add_hvac_system(self, 'VAV No Reheat', ht = 'NaturalGas', znht = nil, cl = 'Electricity', zones)
    # standard.model_add_hvac_system(self, 'Residential Air Source Heat Pump', ht=nil, znht=nil, cl='Electricity', zones)
    # Using PTHP to represent zone heat pump for this configuration
    # because only one airloop may be connected to each thermal zone.
    standard.model_add_hvac_system(self, 'PTHP', ht = 'Electricity', znht = nil, cl = 'Electricity', zones)
    # disable the cooling coils in all the PTHPs
    getZoneHVACPackagedTerminalHeatPumps.each do |pthp|
      clg_coil = pthp.heatingCoil.to_CoilHeatingDXSingleSpeed.get
      clg_coil.setAvailabilitySchedule(alwaysOffDiscreteSchedule)
    end

  when 'PVAV with reheat', 'Packaged VAV Air Loop with Boiler' # second enumeration for backwards compatibility with Tenant Star project
    standard.model_add_hvac_system(self, 'PVAV Reheat', ht = 'NaturalGas', znht = 'NaturalGas', cl = 'Electricity', zones)

  when 'PVAV with PFP boxes'
    standard.model_add_hvac_system(self, 'PVAV PFP Boxes', ht = 'Electricity', znht = 'Electricity', cl = 'Electricity', zones)

  when 'Residential forced air'
    standard.model_add_hvac_system(self, 'Unit Heaters', ht = 'NaturalGas', znht = nil, cl = nil, zones)

  when 'Residential forced air cooling hot water baseboard heat'
    standard.model_add_hvac_system(self, 'Residential AC', ht = nil, znht = nil, cl = 'Electricity', zones)
    standard.model_add_hvac_system(self, 'Baseboards', ht = 'NaturalGas', znht = nil, cl = nil, zones)

  when 'Residential forced air with district hot water'
    standard.model_add_hvac_system(self, 'Residential AC', ht = nil, znht = nil, cl = 'Electricity', zones)

  when 'Residential heat pump'
    standard.model_add_hvac_system(self, 'Residential Air Source Heat Pump', ht = 'Electricity', znht = nil, cl = 'Electricity', zones)

  when 'Forced air furnace'
    standard.model_add_hvac_system(self, 'Forced Air Furnace', ht = 'NaturalGas', znht = nil, cl = nil, zones)

  when 'Forced air furnace district chilled water fan coil'
    standard.model_add_hvac_system(self, 'Forced Air Furnace', ht = 'NaturalGas', znht = nil, cl = nil, zones)
    standard.model_add_hvac_system(self, 'Fan Coil', ht = nil, znht = nil, cl = 'DistrictCooling', zones)

  when 'Forced air furnace direct evap cooler'
    # standard.model_add_hvac_system(self, 'Forced Air Furnace', ht='NaturalGas', znht=nil, cl=nil, zones)
    # Using unit heater to represent forced air furnace for this configuration
    # because only one airloop may be connected to each thermal zone.
    standard.model_add_hvac_system(self, 'Unit Heaters', ht = 'NaturalGas', znht = nil, cl = nil, zones)
    standard.model_add_hvac_system(self, 'Evaporative Cooler', ht = nil, znht = nil, cl = 'Electricity', zones)

  when 'Residential AC with no heat'
    standard.model_add_hvac_system(self, 'Residential AC', ht = nil, znht = nil, cl = 'Electricity', zones)

  when 'Residential AC with electric baseboard heat'
    standard.model_add_hvac_system(self, 'Residential AC', ht = nil, znht = nil, cl = 'Electricity', zones)
    standard.model_add_hvac_system(self, 'Baseboards', ht = 'Electricity', znht = nil, cl = nil, zones)

  else
    puts "HVAC system type '#{system_type}' not recognized"

  end
end