module MediumOffice
Custom changes for the MediumOffice
prototype. These are changes that are inconsistent with other prototype building types.
Public Instance Methods
add door infiltration
@param climate_zone [String] ASHRAE climate zone, e.g. ‘ASHRAE 169-2013-4A’ @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.MediumOffice.rb, line 94 def add_door_infiltration(climate_zone, model) # add extra infiltration for entry door in m3/s (there is no attic in 'DOE Ref Pre-1980') return false if template == 'DOE Ref 1980-2004' || template == 'DOE Ref Pre-1980' entry_space = model.getSpaceByName('Perimeter_bot_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 = 1.04300287 infiltration_entrydoor.setSchedule(model_add_schedule(model, 'OfficeMedium 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 = 1.04300287 infiltration_entrydoor.setSchedule(model_add_schedule(model, 'OfficeMedium INFIL_Door_Opening_SCH')) else infiltration_per_zone_entrydoor = 0.678659786 infiltration_entrydoor.setSchedule(model_add_schedule(model, 'OfficeMedium INFIL_Door_Opening_SCH')) end end infiltration_entrydoor.setDesignFlowRate(infiltration_per_zone_entrydoor) infiltration_entrydoor.setSpace(entry_space) return true end
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.MediumOffice.rb, line 180 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.MediumOffice.rb, line 167 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.MediumOffice.rb, line 131 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.MediumOffice.rb, line 153 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.MediumOffice.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 45 kVA transformer case template when '90.1-2004', '90.1-2007' transformer_efficiency = 0.961 when '90.1-2010', '90.1-2013' transformer_efficiency = 0.977 when '90.1-2016', '90.1-2019' transformer_efficiency = 0.984 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: 0.0281, transformer_size: 45000, transformer_efficiency: transformer_efficiency, excluded_interiorequip_key: '2 Elevator Lift Motors', excluded_interiorequip_meter: excluded_interiorequip_variable) model.getSpaces.sort.each do |space| if space.name.get.to_s == 'Core_bottom' 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 OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', 'Finished building type specific adjustments') # add extra infiltration for entry door add_door_infiltration(climate_zone, model) OpenStudio.logFree(OpenStudio::Info, 'openstudio.model.Model', 'Added door infiltration') # 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, 'Medium 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, 'OfficeMedium INFIL_SCH_PNNL')) end end 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.MediumOffice.rb, line 142 def model_custom_swh_tweaks(model, building_type, climate_zone, prototype_input) return true end