module LargeOfficeDetailed
Custom changes for the LargeOffice
prototype. These are changes that are inconsistent with other prototype building types.
Public Instance Methods
@!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.LargeOfficeDetailed.rb, line 153 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
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.LargeOfficeDetailed.rb, line 139 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.LargeOfficeDetailed.rb, line 11 def model_custom_hvac_tweaks(model, building_type, climate_zone, prototype_input) 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 # replace EvaporativeFluidCoolerSingleSpeed with CoolingTowerTwoSpeed model.getPlantLoops.each do |plant_loop| next unless plant_loop.name.to_s.include? 'Heat Pump Loop' sup_wtr_high_temp_f = 65.0 sup_wtr_low_temp_f = 41.0 sup_wtr_high_temp_c = OpenStudio.convert(sup_wtr_high_temp_f, 'F', 'C').get sup_wtr_low_temp_c = OpenStudio.convert(sup_wtr_low_temp_f, 'F', 'C').get hp_high_temp_sch = OpenstudioStandards::Schedules.create_constant_schedule_ruleset(model, sup_wtr_high_temp_c, name: "#{plant_loop.name} High Temp - #{sup_wtr_high_temp_f.round(0)}F", schedule_type_limit: 'Temperature') hp_low_temp_sch = OpenstudioStandards::Schedules.create_constant_schedule_ruleset(model, sup_wtr_low_temp_c, name: "#{plant_loop.name} Low Temp - #{sup_wtr_low_temp_f.round(0)}F", schedule_type_limit: 'Temperature') # add cooling tower object cooling_tower = OpenStudio::Model::CoolingTowerTwoSpeed.new(model) cooling_tower.setName("#{plant_loop.name} Central Tower") plant_loop.addSupplyBranchForComponent(cooling_tower) #### Add SPM Scheduled Dual Setpoint to outlet of Fluid Cooler so correct Plant Operation Scheme is generated cooling_tower_stpt_manager = OpenStudio::Model::SetpointManagerScheduledDualSetpoint.new(model) cooling_tower_stpt_manager.setName("#{plant_loop.name} Fluid Cooler Scheduled Dual Setpoint") cooling_tower_stpt_manager.setHighSetpointSchedule(hp_high_temp_sch) cooling_tower_stpt_manager.setLowSetpointSchedule(hp_low_temp_sch) cooling_tower_stpt_manager.addToNode(cooling_tower.outletModelObject.get.to_Node.get) # remove EvaporativeFluidCoolerSingleSpeed object model.getEvaporativeFluidCoolerSingleSpeeds.each do |fluid_cooler| if fluid_cooler.plantLoop.get.name.to_s == plant_loop.name.to_s fluid_cooler.remove break end end end remove_basement_infiltration(model) 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.LargeOfficeDetailed.rb, line 127 def model_custom_swh_tweaks(model, building_type, climate_zone, prototype_input) update_waterheater_loss_coefficient(model) return true end
remove basement infiltration
@param model [OpenStudio::Model::Model] OpenStudio model object @return [Boolean] returns true if successful, false if not
# File lib/openstudio-standards/prototypes/common/buildings/Prototype.LargeOfficeDetailed.rb, line 95 def remove_basement_infiltration(model) space_infltrations = model.getSpaceInfiltrationDesignFlowRates space_infltrations.each do |space_inf| if space_inf.name.to_s.include? 'Basement' space_inf = nil end end return true end
update water heater loss coefficient
@param model [OpenStudio::Model::Model] OpenStudio model object @return [Boolean] returns true if successful, false if not
# File lib/openstudio-standards/prototypes/common/buildings/Prototype.LargeOfficeDetailed.rb, line 109 def update_waterheater_loss_coefficient(model) case template when '90.1-2004', '90.1-2007', '90.1-2010', '90.1-2013', '90.1-2016', '90.1-2019', 'NECB2011' model.getWaterHeaterMixeds.sort.each do |water_heater| water_heater.setOffCycleLossCoefficienttoAmbientTemperature(11.25413987) water_heater.setOnCycleLossCoefficienttoAmbientTemperature(11.25413987) end end return true end