Module: SmallOffice

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

Overview

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

Instance Method Summary collapse

Instance Method Details

#add_attic_infiltration(template, climate_zone, model) ⇒ Object 



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# File 'lib/openstudio-standards/prototypes/common/buildings/Prototype.SmallOffice.rb', line 61

def add_attic_infiltration(template, climate_zone, model)
  # add extra infiltration for attic in m3/s (there is no attic in 'DOE Ref Pre-1980')
  unless template == 'DOE Ref 1980-2004' || template == 'DOE Ref Pre-1980'
    entry_space = model.getSpaceByName('Attic').get
    infiltration_attic = OpenStudio::Model::SpaceInfiltrationDesignFlowRate.new(model)
    infiltration_attic.setName('attic Infiltration')
    infiltration_per_zone_attic = 0.2001
    infiltration_attic.setSchedule(model_add_schedule(model, 'Always On'))
    infiltration_attic.setDesignFlowRate(infiltration_per_zone_attic)
    infiltration_attic.setConstantTermCoefficient(1.0)
    infiltration_attic.setTemperatureTermCoefficient(0.0)
    infiltration_attic.setVelocityTermCoefficient(0.0)
    infiltration_attic.setVelocitySquaredTermCoefficient(0.0)
    infiltration_attic.setSpace(entry_space)
  end
end

#add_door_infiltration(template, climate_zone, model) ⇒ Object 



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# File 'lib/openstudio-standards/prototypes/common/buildings/Prototype.SmallOffice.rb', line 21

def add_door_infiltration(template, climate_zone, model)
  # add extra infiltration for entry door in m3/s (there is no attic in 'DOE Ref Pre-1980')
  unless template == 'DOE Ref 1980-2004' || template == 'DOE Ref Pre-1980'
    entry_space = model.getSpaceByName('Perimeter_ZN_1').get
    infiltration_entrydoor = OpenStudio::Model::SpaceInfiltrationDesignFlowRate.new(model)
    infiltration_entrydoor.setName('entry door Infiltration')
    infiltration_per_zone_entrydoor = 0
    if template == '90.1-2004'
      infiltration_per_zone_entrydoor = 0.129785425
      infiltration_entrydoor.setSchedule(model_add_schedule(model, 'OfficeSmall INFIL_Door_Opening_SCH'))
    elsif template == '90.1-2007' || template == '90.1-2010' || template == '90.1-2013' || template == '90.1-2016' || template == '90.1-2019'
      case climate_zone
      when 'ASHRAE 169-2006-0A',
           'ASHRAE 169-2006-1A',
           'ASHRAE 169-2006-0B',
           'ASHRAE 169-2006-1B',
           'ASHRAE 169-2006-2A',
           'ASHRAE 169-2006-2B',
           'ASHRAE 169-2013-0A',
           'ASHRAE 169-2013-1A',
           'ASHRAE 169-2013-0B',
           'ASHRAE 169-2013-1B',
           'ASHRAE 169-2013-2A',
           'ASHRAE 169-2013-2B'
        infiltration_per_zone_entrydoor = 0.129785425
        infiltration_entrydoor.setSchedule(model_add_schedule(model, 'OfficeSmall INFIL_Door_Opening_SCH'))
      else
        infiltration_per_zone_entrydoor = 0.076455414
        infiltration_entrydoor.setSchedule(model_add_schedule(model, 'OfficeSmall INFIL_Door_Opening_SCH_2013'))
      end
    end
    infiltration_entrydoor.setDesignFlowRate(infiltration_per_zone_entrydoor)
    infiltration_entrydoor.setConstantTermCoefficient(1.0)
    infiltration_entrydoor.setTemperatureTermCoefficient(0.0)
    infiltration_entrydoor.setVelocityTermCoefficient(0.0)
    infiltration_entrydoor.setVelocitySquaredTermCoefficient(0.0)
    infiltration_entrydoor.setSpace(entry_space)
  end
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.SmallOffice.rb', line 78

def model_custom_daylighting_tweaks(building_type, climate_zone, prototype_input, model)
  OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', 'Adjusting daylight sensor positions and fractions')

  adjustments = [
    { '90.1-2010' => { 'Perimeter_ZN_1' => { 'sensor_1_frac' => 0.02,
                                             'sensor_2_frac' => 0.1,
                                             'sensor_1_xyz' => [3.3236, 1.6002, 0.762],
                                             'sensor_2_xyz' => [8.9611, 1.6002, 0.762] },
                       'Perimeter_ZN_2' => { 'sensor_1_frac' => 0.06,
                                             'sensor_2_frac' => 0.15,
                                             'sensor_1_xyz' => [26.0898, 3.3236, 0.762],
                                             'sensor_2_xyz' => [26.0898, 9.23, 0.762] },
                       'Perimeter_ZN_3' => { 'sensor_1_frac' => 0.1,
                                             'sensor_2_frac' => 0.02,
                                             'sensor_1_xyz' => [13.8684, 16.8598, 0.762],
                                             'sensor_2_xyz' => [24.3664, 16.8598, 0.762] },
                       'Perimeter_ZN_4' => { 'sensor_1_frac' => 0.06,
                                             'sensor_2_frac' => 0.15,
                                             'sensor_1_xyz' => [1.6002, 15.1364, 0.762],
                                             'sensor_2_xyz' => [1.6002, 9.2446, 0.762] } },
      '90.1-2013' => { 'Perimeter_ZN_1' => { 'sensor_1_frac' => 0.2399,
                                             'sensor_2_frac' => 0.0302,
                                             'sensor_1_xyz' => [9.144, 1.6337, 0.762],
                                             'sensor_2_xyz' => [9.144, 3.2675, 0.762] },
                       'Perimeter_ZN_2' => { 'sensor_1_frac' => 0.2399,
                                             'sensor_2_frac' => 0.0302,
                                             'sensor_1_xyz' => [26.0898, 9.144, 0.762],
                                             'sensor_2_xyz' => [24.4561, 9.144, 0.762] },
                       'Perimeter_ZN_3' => { 'sensor_1_frac' => 0.2399,
                                             'sensor_2_frac' => 0.0302,
                                             'sensor_1_xyz' => [18.288, 16.825, 0.762],
                                             'sensor_2_xyz' => [18.288, 15.1925, 0.762] },
                       'Perimeter_ZN_4' => { 'sensor_1_frac' => 0.2399,
                                             'sensor_2_frac' => 0.0302,
                                             'sensor_1_xyz' => [1.6337, 9.144, 0.762],
                                             'sensor_2_xyz' => [3.2675, 9.144, 0.762] } },
      '90.1-2016' => { 'Perimeter_ZN_1' => { 'sensor_1_frac' => 0.2399,
                                             'sensor_2_frac' => 0.0302,
                                             'sensor_1_xyz' => [9.144, 1.6337, 0.762],
                                             'sensor_2_xyz' => [9.144, 3.2675, 0.762] },
                       'Perimeter_ZN_2' => { 'sensor_1_frac' => 0.2399,
                                             'sensor_2_frac' => 0.0302,
                                             'sensor_1_xyz' => [26.0898, 9.144, 0.762],
                                             'sensor_2_xyz' => [24.4561, 9.144, 0.762] },
                       'Perimeter_ZN_3' => { 'sensor_1_frac' => 0.2399,
                                             'sensor_2_frac' => 0.0302,
                                             'sensor_1_xyz' => [18.288, 16.825, 0.762],
                                             'sensor_2_xyz' => [18.288, 15.1925, 0.762] },
                       'Perimeter_ZN_4' => { 'sensor_1_frac' => 0.2399,
                                             'sensor_2_frac' => 0.0302,
                                             'sensor_1_xyz' => [1.6337, 9.144, 0.762],
                                             'sensor_2_xyz' => [3.2675, 9.144, 0.762] } },
      '90.1-2019' => { 'Perimeter_ZN_1' => { 'sensor_1_frac' => 0.2399,
                                             'sensor_2_frac' => 0.0302,
                                             'sensor_1_xyz' => [9.144, 1.6337, 0.762],
                                             'sensor_2_xyz' => [9.144, 3.2675, 0.762] },
                       'Perimeter_ZN_2' => { 'sensor_1_frac' => 0.2399,
                                             'sensor_2_frac' => 0.0302,
                                             'sensor_1_xyz' => [26.0898, 9.144, 0.762],
                                             'sensor_2_xyz' => [24.4561, 9.144, 0.762] },
                       'Perimeter_ZN_3' => { 'sensor_1_frac' => 0.2399,
                                             'sensor_2_frac' => 0.0302,
                                             'sensor_1_xyz' => [18.288, 16.825, 0.762],
                                             'sensor_2_xyz' => [18.288, 15.1925, 0.762] },
                       'Perimeter_ZN_4' => { 'sensor_1_frac' => 0.2399,
                                             'sensor_2_frac' => 0.0302,
                                             'sensor_1_xyz' => [1.6337, 9.144, 0.762],
                                             'sensor_2_xyz' => [3.2675, 9.144, 0.762] } } }
  ]

  # Adjust daylight sensors in each space
  model.getSpaces.each do |space|
    if adjustments[0].keys.include?(template)
      if adjustments[0][template].keys.include?(space.name.to_s)
        adj = adjustments[0][template][space.name.to_s]
        next if space.thermalZone.empty?

        zone = space.thermalZone.get
        next if space.spaceType.empty?

        spc_type = space.spaceType.get
        next if spc_type.standardsSpaceType.empty?

        stds_spc_type = spc_type.standardsSpaceType.get
        # Adjust the primary sensor
        if adj['sensor_1_frac'] && zone.primaryDaylightingControl.is_initialized
          OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', "For #{zone.name}: Adjusting primary daylight sensor to control #{adj['sensor_1_frac']} of the lighting.")
          zone.setFractionofZoneControlledbyPrimaryDaylightingControl(adj['sensor_1_frac'])
          pri_ctrl = zone.primaryDaylightingControl.get
          if adj['sensor_1_xyz']
            x = adj['sensor_1_xyz'][0]
            y = adj['sensor_1_xyz'][1]
            z = adj['sensor_1_xyz'][2]
            OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', "For #{zone.name}: Adjusting primary daylight sensor position to [#{x}, #{y}, #{z}].")
            pri_ctrl.setPositionXCoordinate(x)
            pri_ctrl.setPositionYCoordinate(y)
            pri_ctrl.setPositionZCoordinate(z)
          end
        end
        # Adjust the secondary sensor
        if adj['sensor_2_frac'] && zone.secondaryDaylightingControl.is_initialized
          OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', "For #{zone.name}: Adjusting secondary daylight sensor to control #{adj['sensor_2_frac']} of the lighting.")
          zone.setFractionofZoneControlledbySecondaryDaylightingControl(adj['sensor_2_frac'])
          sec_ctrl = zone.secondaryDaylightingControl.get
          if adj['sensor_2_xyz']
            x = adj['sensor_2_xyz'][0]
            y = adj['sensor_2_xyz'][1]
            z = adj['sensor_2_xyz'][2]
            OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', "For #{zone.name}: Adjusting secondary daylight sensor position to [#{x}, #{y}, #{z}].")
            sec_ctrl.setPositionXCoordinate(x)
            sec_ctrl.setPositionYCoordinate(y)
            sec_ctrl.setPositionZCoordinate(z)
          end
        end
      end
    end
  end

  return true
end

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



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# File 'lib/openstudio-standards/prototypes/common/buildings/Prototype.SmallOffice.rb', line 203

def model_custom_geometry_tweaks(building_type, climate_zone, prototype_input, model)
  # Set original building North axis
  model_set_building_north_axis(model, 0.0)

  return true
end

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



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# File 'lib/openstudio-standards/prototypes/common/buildings/Prototype.SmallOffice.rb', line 5

def model_custom_hvac_tweaks(building_type, climate_zone, prototype_input, model)
  # add extra infiltration for entry door
  add_door_infiltration(template, climate_zone, model)
  OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', 'Added door infiltration')

  # add extra infiltration for attic
  add_attic_infiltration(template, climate_zone, model)
  OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', 'Added attic infiltration')

  # reset defrost time fraction
  # TODO: set this to a reasonable defrost time fraction based on research and implement in Prototype.CoilHeatingDXSingleSpeed
  model.getCoilHeatingDXSingleSpeeds.each(&:resetDefrostTimePeriodFraction)

  return true
end

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



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# File 'lib/openstudio-standards/prototypes/common/buildings/Prototype.SmallOffice.rb', line 199

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