Module: SmallHotel

Defined in:
lib/openstudio-standards/prototypes/common/buildings/Prototype.SmallHotel.rb

Overview

Custom changes for the SmallHotel prototype. These are changes that are inconsistent with other prototype building types.

Instance Method Summary collapse

Instance Method Details

#add_extra_equip_elevator_coreflr1(model) ⇒ Boolean

add this for elevator lights/fans (elevator lift is implemented through standard lookup)

Parameters:

  • model (OpenStudio::Model::Model) —

    OpenStudio model object

Returns:

  • (Boolean) —

    returns true if successful, false if not



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# File 'lib/openstudio-standards/prototypes/common/buildings/Prototype.SmallHotel.rb', line 74

def add_extra_equip_elevator_coreflr1(model)
  elevator_coreflr1 = model.getSpaceByName('ElevatorCoreFlr1').get
  elec_equip_def = OpenStudio::Model::ElectricEquipmentDefinition.new(model)
  elec_equip_def.setName('Elevator CoreFlr1 Electric Equipment Definition')
  elec_equip_def.setFractionLatent(0)
  elec_equip_def.setFractionRadiant(0.5)
  elec_equip_def.setFractionLost(0.0)
  elec_equip_def.setDesignLevel(125)
  elec_equip = OpenStudio::Model::ElectricEquipment.new(elec_equip_def)
  elec_equip.setName('Elevator Coreflr1 Elevator Lights/Fans Equipment')
  elec_equip.setSpace(elevator_coreflr1)
  case template
    when '90.1-2004', '90.1-2007', '90.1-2010', '90.1-2013', '90.1-2016', '90.1-2019'
      # add elevator lift motor (not found in small hotel)
      elec_equip_def2 = OpenStudio::Model::ElectricEquipmentDefinition.new(model)
      elec_equip_def2.setName('Elevator CoreFlr1 Electric Equipment Definition2')
      elec_equip_def2.setFractionLatent(0)
      elec_equip_def2.setFractionRadiant(0.5)
      elec_equip_def2.setFractionLost(0.0)
      elec_equip_def2.setDesignLevel(32110)
      elec_equip2 = OpenStudio::Model::ElectricEquipment.new(elec_equip_def2)
      elec_equip2.setName('Elevator Coreflr1 Elevator Equipment')
      elec_equip2.setSpace(elevator_coreflr1)
      elec_equip2.setSchedule(model_add_schedule(model, 'HotelSmall BLDG_ELEVATORS'))

      case template
      when '90.1-2004', '90.1-2007'
        elec_equip.setSchedule(model_add_schedule(model, 'HotelSmall ELEV_LIGHT_FAN_SCH_24_7'))
      when '90.1-2010', '90.1-2013', '90.1-2016', '90.1-2019'
        elec_equip.setSchedule(model_add_schedule(model, 'HotelSmall ELEV_LIGHT_FAN_SCH_ADD_DF'))
      end

    when 'DOE Ref Pre-1980', 'DOE Ref 1980-2004'
      elec_equip.setSchedule(model_add_schedule(model, 'HotelSmall ELEV_LIGHT_FAN_SCH_ADD_DF'))
  end
  return true
end

#model_custom_geometry_tweaks(model, building_type, climate_zone, prototype_input) ⇒ Boolean

geometry adjustments specific to the prototype model

Parameters:

  • model (OpenStudio::Model::Model) —

    OpenStudio model object

  • building_type (String the building type) —

    uilding_type [String the building type

  • climate_zone (String) —

    ASHRAE climate zone, e.g. ‘ASHRAE 169-2013-4A’

  • prototype_input (Hash) —

    hash of prototype inputs

Returns:

  • (Boolean) —

    returns true if successful, false if not



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# File 'lib/openstudio-standards/prototypes/common/buildings/Prototype.SmallHotel.rb', line 146

def model_custom_geometry_tweaks(model, building_type, climate_zone, prototype_input)
  # Set original building North axis
  OpenstudioStandards::Geometry.model_set_building_north_axis(model, 90.0)
  return true
end

#model_custom_hvac_tweaks(model, building_type, climate_zone, prototype_input) ⇒ Boolean

hvac adjustments specific to the prototype model

Parameters:

  • model (OpenStudio::Model::Model) —

    OpenStudio model object

  • building_type (String the building type) —

    uilding_type [String the building type

  • climate_zone (String) —

    ASHRAE climate zone, e.g. ‘ASHRAE 169-2013-4A’

  • prototype_input (Hash) —

    hash of prototype inputs

Returns:

  • (Boolean) —

    returns true if successful, false if not



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# File 'lib/openstudio-standards/prototypes/common/buildings/Prototype.SmallHotel.rb', line 11

def model_custom_hvac_tweaks(model, building_type, climate_zone, prototype_input)
  OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', 'Started building type specific adjustments')

  # add elevator for the elevator coreflr1  (the elevator lift already added via standard spreadsheet)
  add_extra_equip_elevator_coreflr1(model)

  # add extra infiltration for corridor1 door
  corridor_space = model.getSpaceByName('CorridorFlr1')
  corridor_space = corridor_space.get
  unless template == 'DOE Ref 1980-2004' || template == 'DOE Ref Pre-1980'
    infiltration_corridor = OpenStudio::Model::SpaceInfiltrationDesignFlowRate.new(model)
    infiltration_corridor.setName('Corridor1 door Infiltration')
    infiltration_per_zone = 0
    infiltration_per_zone = if template == '90.1-2010' || template == '90.1-2007'
                              0.591821538
                            else
                              0.91557718
                            end
    infiltration_corridor.setDesignFlowRate(infiltration_per_zone)
    infiltration_corridor.setSchedule(model_add_schedule(model, 'HotelSmall INFIL_Door_Opening_SCH'))
    infiltration_corridor.setSpace(corridor_space)
  end

  unless template == 'DOE Ref 1980-2004' || template == 'DOE Ref Pre-1980'
    # hardsize corridor1. put in standards in the future
    # @todo
    model.getZoneHVACPackagedTerminalAirConditioners.sort.each do |ptac|
      zone = ptac.thermalZone.get
      if zone.spaces.include?(corridor_space)
        ptac.setSupplyAirFlowRateDuringCoolingOperation(0.13)
        ptac.setSupplyAirFlowRateDuringHeatingOperation(0.13)
        ptac.setSupplyAirFlowRateWhenNoCoolingorHeatingisNeeded(0.13)
        ccoil = ptac.coolingCoil
        if ccoil.to_CoilCoolingDXSingleSpeed.is_initialized
          ccoil.to_CoilCoolingDXSingleSpeed.get.setRatedTotalCoolingCapacity(2638) # Unit: W
          ccoil.to_CoilCoolingDXSingleSpeed.get.setRatedAirFlowRate(0.13)
        end
      end
    end

    # add HotelSmall SAC_Econ_MaxOAFrac_Sch
    oa_controller = model.getControllerOutdoorAirByName('ExerciseCenterFlr1 ZN - EmployeeLoungeFlr1 ZN - RestroomFlr1 ZN SAC OA System Controller').get
    oa_controller.setMaximumFractionofOutdoorAirSchedule(model_add_schedule(model, 'HotelSmall SAC_Econ_MaxOAFrac_Sch'))
  end

  OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', 'Finished building type specific adjustments')

  # Guestroom vacancy controls
  model_add_guestroom_vacancy_controls(model, 'SmallHotel')

  # Guestroom temperature reset schedule delay reduction from 30 min to 20 min
  model_reduce_setback_sch_delay(model, 'SmallHotel')

  # Guestroom ventilation availability schedule setup
  model_add_guestroom_vent_sch(model, 'SmallHotel')

  return true
end

#model_custom_swh_tweaks(model, building_type, climate_zone, prototype_input) ⇒ Boolean

swh adjustments specific to the prototype model

Parameters:

  • model (OpenStudio::Model::Model) —

    OpenStudio model object

  • building_type (String the building type) —

    uilding_type [String the building type

  • climate_zone (String) —

    ASHRAE climate zone, e.g. ‘ASHRAE 169-2013-4A’

  • prototype_input (Hash) —

    hash of prototype inputs

Returns:

  • (Boolean) —

    returns true if successful, false if not



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# File 'lib/openstudio-standards/prototypes/common/buildings/Prototype.SmallHotel.rb', line 134

def model_custom_swh_tweaks(model, building_type, climate_zone, prototype_input)
  update_waterheater_ambient_parameters(model)
  return true
end

#update_waterheater_ambient_parameters(model) ⇒ Boolean

update water heater ambient conditions

Parameters:

  • model (OpenStudio::Model::Model) —

    OpenStudio model object

Returns:

  • (Boolean) —

    returns true if successful, false if not



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# File 'lib/openstudio-standards/prototypes/common/buildings/Prototype.SmallHotel.rb', line 116

def update_waterheater_ambient_parameters(model)
  model.getWaterHeaterMixeds.sort.each do |water_heater|
    if water_heater.name.to_s.include?('200gal')
      water_heater.resetAmbientTemperatureSchedule
      water_heater.setAmbientTemperatureIndicator('ThermalZone')
      water_heater.setAmbientTemperatureThermalZone(model.getThermalZoneByName('LaundryRoomFlr1 ZN').get)
    end
  end
  return true
end