IFC 4.3.0.1 (IFC4X3) development

6.2.4.21 Pset_OutsideDesignCriteria

6.2.4.21.1 Semantic definition

Outside air conditions used as the basis for calculating thermal loads at peak conditions, as well as the weather data location from which these conditions were obtained. HISTORY: New property set in IFC Release 1.0.

6.2.4.21.2 Applicable entities

6.2.4.21.3 Properties

Name Property Type Data Type Description
HeatingDryBulb IfcPropertySingleValue IfcThermodynamicTemperatureMeasure

Dry bulb temperature for heating design.

At outside.

HeatingWetBulb IfcPropertySingleValue IfcThermodynamicTemperatureMeasure

Outside wet bulb temperature for heating design.

HeatingDesignDay IfcPropertySingleValue IfcDateTime

The month, day and time that has been selected for the heating design calculations.

CoolingDryBulb IfcPropertySingleValue IfcThermodynamicTemperatureMeasure

Dry bulb temperature, usually for for cooling design.

Outside dry bulb temperature

CoolingWetBulb IfcPropertySingleValue IfcThermodynamicTemperatureMeasure

Outside wet bulb temperature for cooling design.

CoolingDesignDay IfcPropertySingleValue IfcDateTime

The month, day and time that has been selected for the cooling design calculations.

WeatherDataStation IfcPropertySingleValue IfcText

The site weather data station description or reference to the data source from which weather data was obtained for use in calculations.

WeatherDataDate IfcPropertySingleValue IfcDateTime

The date for which the weather data was gathered.

BuildingThermalExposure IfcPropertyEnumeratedValue PEnum_BuildingThermalExposure

The thermal exposure expected by the building based on surrounding site conditions.

PrevailingWindDirection IfcPropertySingleValue IfcPlaneAngleMeasure

The prevailing wind angle direction measured from True North (0 degrees) in a clockwise direction.

PrevailingWindVelocity IfcPropertySingleValue IfcLinearVelocityMeasure

The design wind velocity coming from the direction specified by the PrevailingWindDirection attribute.

Table 6.2.4.21.A

Edit on Github


Is this page difficult to understand? Let us know!

6.2.4.21.4 Changelog