IFC 4.3.2.20250219 (IFC4X3_ADD2) under development

7.5.4.37 Pset_DuctFittingPHistory

7.5.4.37.1 Semantic definition

Duct fitting performance history common attributes.

7.5.4.37.2 Applicable entities

7.5.4.37.3 Properties

Name Property Type Data Type Description
LossCoefficient IfcPropertyReferenceValue IfcTimeSeries

Dimensionless loss coefficient used for calculating fluid resistance representing the ratio of total pressure loss to velocity pressure at a referenced cross-section.
AtmosphericPressure IfcPropertyReferenceValue IfcTimeSeries

Ambient atmospheric pressure.
AirFlowLeakage IfcPropertyReferenceValue IfcTimeSeries

Volumetric leakage flow rate.
Table 7.5.4.37.A

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2 contributor(s):
Last change: Improve definition split (#876) * bring back headers headers were previously removed by mistake, now bringing them back * add new lines and rename the tag add the word 'short' in it * unify newlines make exactly one newline before and two after the tag * resolving typos Because bringing back headers required to go back in time to previous version, I'm now re-resolving the issues: #861, #860, #856 by ArturTomczak on 7/16/2024, 2:07:28 PM

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7.5.4.37.4 Changelog

7.5.4.37.4.1 IFC4