Module: BTAP::Resources::HVAC

Defined in:
lib/openstudio-standards/btap/hvac.rb

Overview

This module contains methods that relate to Materials, Constructions and Construction Sets

Defined Under Namespace

Modules: HVACTemplates, Plant, ZoneEquipment

Class Method Summary collapse

Class Method Details

.clear_all_hvac_from_model(model) ⇒ Object 



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# File 'lib/openstudio-standards/btap/hvac.rb', line 29

def self.clear_all_hvac_from_model(model)
  BTAP::Resources::HVAC::clear_all_zone_equipment_from_model(model)
  BTAP::Resources::HVAC::clear_all_loops(model)
  # Delete outdoor VRF units (not in zone, not in loops)
  model.getAirConditionerVariableRefrigerantFlows.sort.each {|vrf| vrf.remove}
end

.clear_all_loops(model) ⇒ Object 



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# File 'lib/openstudio-standards/btap/hvac.rb', line 12

def self.clear_all_loops(model)
  model.getPlantLoops().each {|loop| loop.remove }
  model.getAirLoopHVACs().each {|loop| loop.remove }
end

.clear_all_zone_equipment_from_model(model) ⇒ Object 



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# File 'lib/openstudio-standards/btap/hvac.rb', line 23

def self.clear_all_zone_equipment_from_model(model)
  model.getThermalZones.sort.each do |thermal_zone|
    BTAP::Resources::HVAC::clear_all_zone_equipment_from_zone(thermal_zone)
  end
end

.clear_all_zone_equipment_from_zone(thermal_zone) ⇒ Object 



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# File 'lib/openstudio-standards/btap/hvac.rb', line 17

def self.clear_all_zone_equipment_from_zone(thermal_zone)
  thermal_zone.equipment().each do |zone_equipment|
    zone_equipment.remove()
  end
end

.enable_demand_control_ventilation(model, is_enabled) ⇒ Object 



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# File 'lib/openstudio-standards/btap/hvac.rb', line 36

def self.enable_demand_control_ventilation(model,is_enabled)
  log = ""
  log << "ControllerMechanicalVentilation_handle,enabled?\n"
  model.getControllerMechanicalVentilations.sort.each do |item|
    item.setDemandControlledVentilation( is_enabled )
    log << "#{item.handle},#{item.demandControlledVentilation.to_s}\n"
  end
  return log
end

.enable_economizer(model, setEconomizerControlType = "FixedDryBulb", setEconomizerControlActionType = "ModulateFlow", setEconomizerMaximumLimitDryBulbTemperature = 28.0, setEconomizerMaximumLimitEnthalpy = 64000, setEconomizerMaximumLimitDewpointTemperature = 0.0, setEconomizerMinimumLimitDryBulbTemperature = -100.0) ⇒ Object 



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# File 'lib/openstudio-standards/btap/hvac.rb', line 93

def self.enable_economizer(
    model,
    setEconomizerControlType = "FixedDryBulb",
    setEconomizerControlActionType = "ModulateFlow",
    setEconomizerMaximumLimitDryBulbTemperature = 28.0,
    setEconomizerMaximumLimitEnthalpy = 64000,
    setEconomizerMaximumLimitDewpointTemperature = 0.0,
    setEconomizerMinimumLimitDryBulbTemperature = -100.0
  )
  log = ""
  log << "air_loop_handle,economizer_control_type,	economizer_control_action_type,	economizer_maximum_limit_dry_bulb_temperature,	economizer_maximum_limit_enthalpy,	economizer_maximum_limit_dewpoint_temperature,	economizer_minimum_limit_dry_bulb_temperature"

  model.getAirLoopHVACs().each do |air_loop|
    controller_oa = BTAP::Resources::HVAC::Plant::add_economizer(
      model,
      air_loop,
      setEconomizerControlType,
      setEconomizerControlActionType,
      setEconomizerMaximumLimitDryBulbTemperature,
      setEconomizerMaximumLimitEnthalpy,
      setEconomizerMaximumLimitDewpointTemperature,
      setEconomizerMinimumLimitDryBulbTemperature
    )
    if !!controller_oa == controller_oa  and controller_oa == false
      log << "no controller present and not adding any."
    else
      log << "#{air_loop.handle},#{controller_oa.getEconomizerControlType}, #{controller_oa.getEconomizerControlActionType},#{controller_oa.getEconomizerMaximumLimitDryBulbTemperature},#{controller_oa.getEconomizerMaximumLimitEnthalpy},#{controller_oa.getEconomizerMaximumLimitDewpointTemperature},#{controller_oa.getEconomizerMinimumLimitDryBulbTemperature}\n"
    end
  end
  return log
end

.enable_erv(model, autosizeNominalSupplyAirFlowRate = true, setNominalSupplyAirFlowRate = nil, setHeatExchangerType = 'Plate', setSensibleEffectivenessat100CoolingAirFlow = 0.76, setSensibleEffectivenessat75CoolingAirFlow = 0.81, setLatentEffectiveness100Cooling = 0.68, setLatentEffectiveness75Cooling = 0.73, setSensibleEffectiveness100Heating = 0.76, setSensibleEffectiveness75Heating = 0.81, setLatentEffectiveness100Heating = 0.68, setLatentEffectiveness75Heating = 0.73, setSupplyAirOutletTemperatureControl = true, setFrostControlType = 'None', setThresholdTemperature = 1.7, setInitialDefrostTimeFraction = 0, nominal_electric_power = nil, setEconomizerLockout = true) ⇒ Object 



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# File 'lib/openstudio-standards/btap/hvac.rb', line 46

def self.enable_erv(
    model,
    autosizeNominalSupplyAirFlowRate = true,
    setNominalSupplyAirFlowRate = nil,
    setHeatExchangerType = 'Plate', # 'Rotary' or 'Plate'
    setSensibleEffectivenessat100CoolingAirFlow = 0.76,
    setSensibleEffectivenessat75CoolingAirFlow  = 0.81,
    setLatentEffectiveness100Cooling = 0.68,
    setLatentEffectiveness75Cooling = 0.73,
    setSensibleEffectiveness100Heating = 0.76,
    setSensibleEffectiveness75Heating = 0.81,
    setLatentEffectiveness100Heating = 0.68,
    setLatentEffectiveness75Heating = 0.73,
    setSupplyAirOutletTemperatureControl = true,
    setFrostControlType = 'None', # 'None', 'ExhaustAirRecirculation','ExhaustOnly','MinimumExhaustTemperature'
    setThresholdTemperature  = 1.7,
    setInitialDefrostTimeFraction = 0,
    nominal_electric_power = nil,
    setEconomizerLockout = true
  )
  erv_array = Array.new()
  erv_array << model.getAirLoopHVACs().each do |air_loop|
    BTAP::Resources::HVAC::Plant::add_erv(
      model,
      air_loop,
      autosizeNominalSupplyAirFlowRate,
      setNominalSupplyAirFlowRate,
      setHeatExchangerType, # 'Rotary' or 'Plate'
      setSensibleEffectivenessat100CoolingAirFlow,
      setSensibleEffectivenessat75CoolingAirFlow,
      setLatentEffectiveness100Cooling,
      setLatentEffectiveness75Cooling,
      setSensibleEffectiveness100Heating,
      setSensibleEffectiveness75Heating,
      setLatentEffectiveness100Heating,
      setLatentEffectiveness75Heating,
      setSupplyAirOutletTemperatureControl,
      setFrostControlType, # 'None', 'ExhaustAirRecirculation','ExhaustOnly','MinimumExhaustTemperature'
      setThresholdTemperature,
      setInitialDefrostTimeFraction,
      nominal_electric_power,
      setEconomizerLockout)
  end
  return erv_array
end