IFC 4.3.0.1 (IFC4X3) development

6.2.4.25 Pset_SpaceThermalLoad

6.2.4.25.1 Semantic definition

The space thermal load defines all thermal losses and gains occurring within a space or zone. The thermal load source attribute defines an enumeration of possible sources of the thermal load. The maximum, minimum, time series and app

6.2.4.25.2 Applicable entities

6.2.4.25.3 Properties

Name Property Type Data Type Description
People IfcPropertyBoundedValue IfcPowerMeasure

Heat gains and losses from people.

Lighting IfcPropertyBoundedValue IfcPowerMeasure

Lighting loads.

EquipmentSensible IfcPropertyBoundedValue IfcPowerMeasure

Heat gains and losses from equipment.

VentilationIndoorAir IfcPropertyBoundedValue IfcPowerMeasure

Ventilation loads from indoor air.

VentilationOutdoorAir IfcPropertyBoundedValue IfcPowerMeasure

Ventilation loads from outdoor air.

RecirculatedAir IfcPropertyBoundedValue IfcPowerMeasure

Loads from recirculated air.

ExhaustAir IfcPropertyBoundedValue IfcPowerMeasure

Loads from exhaust air.

AirExchangeRate IfcPropertyBoundedValue IfcPowerMeasure

Loads from the air exchange rate.

DryBulbTemperature IfcPropertyBoundedValue IfcPowerMeasure

Dry bulb temperature of the object.

Loads from the dry bulb temperature.

RelativeHumidity IfcPropertyBoundedValue IfcPowerMeasure

Loads from the relative humidity.

InfiltrationSensible IfcPropertyBoundedValue IfcPowerMeasure

Heat gains and losses from infiltration.

TotalSensibleLoad IfcPropertyBoundedValue IfcPowerMeasure

Total energy added or removed from air that affects its temperature. If a value is less than zero (negative), then the thermal load is lost from the space. If a value is greater than zero (positive), then the thermal load is a gain to the space.

TotalLatentLoad IfcPropertyBoundedValue IfcPowerMeasure

Total energy added or removed from air that affects its humidity or concentration of water vapor. If a value is less than zero (negative), then the thermal load is lost from the space. If a value is greater than zero (positive), then the thermal load is a gain to the space.

TotalRadiantLoad IfcPropertyBoundedValue IfcPowerMeasure

Total electromagnetic energy added or removed by emission or absorption. If a value is less than zero (negative), then the thermal load is lost from the space. If a value is greater than zero (positive), then the thermal load is a gain to the space.

Table 6.2.4.25.A

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6.2.4.25.4 Changelog

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