6.2.4.20 Pset_DistributionSystemTypeVentilation
6.2.4.20.1 Semantic definition
This property set is used to define the general characteristics of the duct design parameters within a system. HISTORY: New property set in IFC Release 2.0. Renamed from Pset_DuctDesignCriteria in IFC4.
6.2.4.20.2 Applicable entities
- IfcDistributionSystem/VENTILATION
6.2.4.20.3 Properties
| Name | Property Type | Data Type | Description | |
|---|---|---|---|---|
| DesignName | IfcPropertySingleValue | IfcLabel |
A name for the design values. |
|
| DuctSizingMethod | IfcPropertyEnumeratedValue | PEnum_DuctSizingMethod |
Enumeration that identifies the methodology to be used to size system components. |
|
| PressureClass | IfcPropertySingleValue | IfcPressureMeasure |
Nominal pressure rating of the object. Nominal pressure rating of the system components. |
|
| LeakageClass | IfcPropertySingleValue | IfcPressureMeasure |
Nominal leakage rating for the system components. |
|
| FrictionLoss | IfcPropertySingleValue | IfcReal |
The pressure loss due to friction per unit length. (Data type = PressureMeasure/LengthMeasure) |
|
| ScrapFactor | IfcPropertySingleValue | IfcReal |
Sheet metal scrap factor. |
|
| DuctSealant | IfcPropertyReferenceValue | IfcMaterialDefinition |
Type of sealant used on the duct and fittings. |
|
| MaximumVelocity | IfcPropertySingleValue | IfcLinearVelocityMeasure |
The maximum design velocity of the air in the duct or fitting. |
|
| AspectRatio | IfcPropertySingleValue | IfcReal |
The default aspect ratio. |
|
| MinimumHeight | IfcPropertySingleValue | IfcPositiveLengthMeasure |
The minimum duct height for rectangular, oval or round duct. |
|
| MinimumWidth | IfcPropertySingleValue | IfcPositiveLengthMeasure |
The minimum duct width for oval or rectangular duct. |