module LargeOffice
Custom changes for the LargeOffice
prototype. These are changes that are inconsistent with other prototype building types.
Public Instance Methods
Type of SAT reset for this building type
@param air_loop_hvac [OpenStudio::Model::AirLoopHVAC] air loop @return [String] Returns type of SAT reset
# File lib/openstudio-standards/prototypes/common/buildings/Prototype.LargeOffice.rb, line 164 def air_loop_hvac_supply_air_temperature_reset_type(air_loop_hvac) return 'oa' end
@!group AirTerminalSingleDuctVAVReheat 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
@param air_terminal_single_duct_vav_reheat [OpenStudio::Model::AirTerminalSingleDuctVAVReheat] the air terminal object @param zone_oa_per_area [Double] the zone outdoor air per area in m^3/s*m^2 @return [Boolean] returns true if successful, false if not
# File lib/openstudio-standards/prototypes/common/buildings/Prototype.LargeOffice.rb, line 151 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
# File lib/openstudio-standards/prototypes/common/buildings/Prototype.LargeOffice.rb, line 115 def model_custom_daylighting_tweaks(building_type, climate_zone, prototype_input, model) return true end
geometry adjustments specific to the prototype model
@param model [OpenStudio::Model::Model] OpenStudio model object @param building_type [String] the building type @param climate_zone [String] ASHRAE climate zone, e.g. ‘ASHRAE 169-2013-4A’ @param prototype_input [Hash] hash of prototype inputs @return [Boolean] returns true if successful, false if not
# File lib/openstudio-standards/prototypes/common/buildings/Prototype.LargeOffice.rb, line 137 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
hvac adjustments specific to the prototype model
@param model [OpenStudio::Model::Model] OpenStudio model object @param building_type [String] the building type @param climate_zone [String] ASHRAE climate zone, e.g. ‘ASHRAE 169-2013-4A’ @param prototype_input [Hash] hash of prototype inputs @return [Boolean] returns true if successful, false if not
# File lib/openstudio-standards/prototypes/common/buildings/Prototype.LargeOffice.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 500 kVA transformer case template when '90.1-2004', '90.1-2007' transformer_efficiency = 0.979 when '90.1-2010', '90.1-2013' transformer_efficiency = 0.987 when '90.1-2016', '90.1-2019' transformer_efficiency = 0.991 else transformer_efficiency = nil end return true if transformer_efficiency.nil? # rename datacenter plug loads sub categories, there should be 2 data center plug load objects in large office model.getElectricEquipments.sort.each do |item| if item.nameString.include? 'Data Center' item.setEndUseSubcategory('DataCenterPlugLoads') end end model_add_transformer(model, wired_lighting_frac: 0.0281, transformer_size: 500000, transformer_efficiency: transformer_efficiency, excluded_interiorequip_meter: 'DataCenterPlugLoads:InteriorEquipment:Electricity') system_to_space_map = define_hvac_system_map(building_type, climate_zone) system_to_space_map.each do |system| # find all zones associated with these spaces thermal_zones = [] system['space_names'].each do |space_name| space = model.getSpaceByName(space_name) if space.empty? OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "No space called #{space_name} was found in the model") return false end space = space.get zone = space.thermalZone if zone.empty? OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "No thermal zone was created for the space called #{space_name}") return false end thermal_zones << zone.get end return_plenum = nil unless system['return_plenum'].nil? return_plenum_space = model.getSpaceByName(system['return_plenum']) if return_plenum_space.empty? OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "No space called #{system['return_plenum']} was found in the model") return false end return_plenum_space = return_plenum_space.get return_plenum = return_plenum_space.thermalZone if return_plenum.empty? OpenStudio.logFree(OpenStudio::Error, 'openstudio.model.Model', "No thermal zone was created for the space called #{system['return_plenum']}") return false end return_plenum = return_plenum.get end end # set infiltration schedule for plenums # @todo remove once infil_sch in Standards.Space pulls from default building infiltration schedule model.getSpaces.each do |space| next unless space.name.get.to_s.include? 'Plenum' # add infiltration if DOE Ref vintage if template == 'DOE Ref 1980-2004' || template == 'DOE Ref Pre-1980' # Create an infiltration rate object for this space infiltration = OpenStudio::Model::SpaceInfiltrationDesignFlowRate.new(space.model) infiltration.setName("#{space.name} Infiltration") all_ext_infil_m3_per_s_per_m2 = OpenStudio.convert(0.2232, 'ft^3/min*ft^2', 'm^3/s*m^2').get infiltration.setFlowperExteriorSurfaceArea(all_ext_infil_m3_per_s_per_m2) infiltration.setSchedule(model_add_schedule(model, 'Large Office Infil Quarter On')) infiltration.setConstantTermCoefficient(1.0) infiltration.setTemperatureTermCoefficient(0.0) infiltration.setVelocityTermCoefficient(0.0) infiltration.setVelocitySquaredTermCoefficient(0.0) infiltration.setSpace(space) else space.spaceInfiltrationDesignFlowRates.each do |infiltration_object| infiltration_object.setSchedule(model_add_schedule(model, 'OfficeLarge INFIL_SCH_PNNL')) end end end hp_loop = model.getPlantLoopByName('Heat Pump Loop') if hp_loop.is_initialized hp_loop = hp_loop.get # set working fluid to ethylene glycol hp_loop.setFluidType('EthyleneGlycol') hp_loop.setGlycolConcentration(40) end return true end
swh adjustments specific to the prototype model
@param model [OpenStudio::Model::Model] OpenStudio model object @param building_type [String] the building type @param climate_zone [String] ASHRAE climate zone, e.g. ‘ASHRAE 169-2013-4A’ @param prototype_input [Hash] hash of prototype inputs @return [Boolean] returns true if successful, false if not
# File lib/openstudio-standards/prototypes/common/buildings/Prototype.LargeOffice.rb, line 126 def model_custom_swh_tweaks(model, building_type, climate_zone, prototype_input) return true end