Module: SecondarySchool

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

Overview

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

AirTerminalSingleDuctVAVReheat collapse

Instance Method Summary collapse

Instance Method Details

#add_extra_equip_kitchen(model) ⇒ Boolean

add extra equipment for kitchen

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.SecondarySchool.rb', line 79

def add_extra_equip_kitchen(model)
  kitchen_space = model.getSpaceByName('Kitchen_ZN_1_FLR_1')
  kitchen_space = kitchen_space.get
  kitchen_space_type = kitchen_space.spaceType.get
  elec_equip_def1 = OpenStudio::Model::ElectricEquipmentDefinition.new(model)
  elec_equip_def2 = OpenStudio::Model::ElectricEquipmentDefinition.new(model)
  elec_equip_def1.setName('Kitchen Electric Equipment Definition1')
  elec_equip_def2.setName('Kitchen Electric Equipment Definition2')
  case template
    when '90.1-2004', '90.1-2007', '90.1-2010', '90.1-2013', '90.1-2016', '90.1-2019'
      elec_equip_def1.setFractionLatent(0)
      elec_equip_def1.setFractionRadiant(0.25)
      elec_equip_def1.setFractionLost(0)
      elec_equip_def2.setFractionLatent(0)
      elec_equip_def2.setFractionRadiant(0.25)
      elec_equip_def2.setFractionLost(0)
      if template == '90.1-2013' || template == '90.1-2016'
        elec_equip_def1.setDesignLevel(915)
        elec_equip_def2.setDesignLevel(570)
      elsif template == '90.1-2019'
        elec_equip_def1.setDesignLevel(555)
        elec_equip_def2.setDesignLevel(313.3)
      else
        elec_equip_def1.setDesignLevel(1032)
        elec_equip_def2.setDesignLevel(852)
      end
      # Create the electric equipment instance and hook it up to the space type
      elec_equip1 = OpenStudio::Model::ElectricEquipment.new(elec_equip_def1)
      elec_equip2 = OpenStudio::Model::ElectricEquipment.new(elec_equip_def2)
      elec_equip1.setName('Kitchen_Reach-in-Freezer')
      elec_equip2.setName('Kitchen_Reach-in-Refrigerator')
      elec_equip1.setSpaceType(kitchen_space_type)
      elec_equip2.setSpaceType(kitchen_space_type)
      elec_equip1.setSchedule(model_add_schedule(model, 'SchoolSecondary ALWAYS_ON'))
      elec_equip2.setSchedule(model_add_schedule(model, 'SchoolSecondary ALWAYS_ON'))
  end
  return true
end

#air_loop_hvac_supply_air_temperature_reset_type(air_loop_hvac) ⇒ String

Type of SAT reset for this building type

Parameters:

  • air_loop_hvac (OpenStudio::Model::AirLoopHVAC) —

    air loop

Returns:

  • (String) —

    Returns type of SAT reset



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# File 'lib/openstudio-standards/prototypes/common/buildings/Prototype.SecondarySchool.rb', line 184

def air_loop_hvac_supply_air_temperature_reset_type(air_loop_hvac)
  return 'oa'
end

#air_terminal_single_duct_vav_reheat_apply_initial_prototype_damper_position(air_terminal_single_duct_vav_reheat, zone_oa_per_area) ⇒ Boolean

Set the initial minimum damper position based on OA rate of the space and the template. Zones with low OA per area get lower initial guesses. Final position will be adjusted upward as necessary by Standards.AirLoopHVAC.apply_minimum_vav_damper_positions

Parameters:

  • air_terminal_single_duct_vav_reheat (OpenStudio::Model::AirTerminalSingleDuctVAVReheat) —

    the air terminal object

  • zone_oa_per_area (Double) —

    the zone outdoor air per area in m^3/s*m^2

Returns:

  • (Boolean) —

    returns true if successful, false if not



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# File 'lib/openstudio-standards/prototypes/common/buildings/Prototype.SecondarySchool.rb', line 171

def air_terminal_single_duct_vav_reheat_apply_initial_prototype_damper_position(air_terminal_single_duct_vav_reheat, zone_oa_per_area)
  min_damper_position = template == '90.1-2010' || template == '90.1-2013' || template == '90.1-2016' || template == '90.1-2019' ? 0.2 : 0.3

  # Set the minimum flow fraction
  air_terminal_single_duct_vav_reheat.setConstantMinimumAirFlowFraction(min_damper_position)

  return true
end

#model_custom_daylighting_tweaks(building_type, climate_zone, prototype_input, model) ⇒ Object 



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

def model_custom_daylighting_tweaks(building_type, climate_zone, prototype_input, model)
  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.SecondarySchool.rb', line 157

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, 0.0)
  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.SecondarySchool.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 HVAC adjustments')

  # add transformer
  # efficiency based on a 225 kVA transformer
  case template
  when '90.1-2004', '90.1-2007'
    transformer_efficiency = 0.974
  when '90.1-2010', '90.1-2013'
    transformer_efficiency = 0.985
  when '90.1-2016', '90.1-2019'
    transformer_efficiency = 0.989
  else
    transformer_efficiency = nil
  end
  return true if transformer_efficiency.nil?

  # Change to output variable name in E+ 9.4 (OS 3.1.0)
  excluded_interiorequip_variable = if model.version < OpenStudio::VersionString.new('3.1.0')
                                      'Electric Equipment Electric Energy'
                                    else
                                      'Electric Equipment Electricity Energy'
                                    end

  model_add_transformer(model,
                        wired_lighting_frac: 0.0194,
                        transformer_size: 225000,
                        transformer_efficiency: transformer_efficiency,
                        excluded_interiorequip_key: '2 Elevator Lift Motors',
                        excluded_interiorequip_meter: excluded_interiorequip_variable)

  # add extra equipment for kitchen
  add_extra_equip_kitchen(model)

  model.getSpaces.sort.each do |space|
    if space.name.get.to_s == 'Mech_ZN_1_FLR_1'
      model_add_elevator(model,
                         space,
                         prototype_input['number_of_elevators'],
                         prototype_input['elevator_type'],
                         prototype_input['elevator_schedule'],
                         prototype_input['elevator_fan_schedule'],
                         prototype_input['elevator_fan_schedule'],
                         building_type)
    end
  end

  # change sizing method for zone
  model.getThermalZones.each do |zone|
    air_terminal = zone.airLoopHVACTerminal
    if air_terminal.is_initialized
      air_terminal = air_terminal.get
      if air_terminal.to_AirTerminalSingleDuctVAVReheat.is_initialized
        sizing_zone = zone.sizingZone
        sizing_zone.setCoolingDesignAirFlowMethod('DesignDay')
      end
    end
  end

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

  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.SecondarySchool.rb', line 140

def model_custom_swh_tweaks(model, building_type, climate_zone, prototype_input)
  update_waterheater_ambient_parameters(model)

  return true
end

#model_transfer_air_target_and_source_zones(model) ⇒ Hash

List transfer air target and source zones, and air aflow (cfm) code_sections [90.1-2019_6.5.7.1], [90.1-2016_6.5.7.1]

Parameters:

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

    OpenStudio model object

Returns:

  • (Hash) —

    target zones (key) and source zones (value) and air flow (value)



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# File 'lib/openstudio-standards/prototypes/common/buildings/Prototype.SecondarySchool.rb', line 193

def model_transfer_air_target_and_source_zones(model)
  model_transfer_air_target_and_source_zones_hash = {
    'Bathrooms_ZN_1_FLR_1 ZN' => ['Main_Corridor_ZN_1_FLR_1 ZN', 600.0],
    'Bathrooms_ZN_1_FLR_2 ZN' => ['Main_Corridor_ZN_1_FLR_2 ZN', 600.0]
  }
  return model_transfer_air_target_and_source_zones_hash
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.SecondarySchool.rb', line 122

def update_waterheater_ambient_parameters(model)
  model.getWaterHeaterMixeds.sort.each do |water_heater|
    if water_heater.name.to_s.include?('Booster')
      water_heater.resetAmbientTemperatureSchedule
      water_heater.setAmbientTemperatureIndicator('ThermalZone')
      water_heater.setAmbientTemperatureThermalZone(model.getThermalZoneByName('Kitchen_ZN_1_FLR_1 ZN').get)
    end
  end
  return true
end