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IfcFluidFlowProperties

Definition from IAI: Common definition to capture basic fluid and flow properties within a flow distribution system.

HISTORY: New entity in IFC R2x.
ISSUES: See issues and change log for changes made in IFC R2x.



EXPRESS specification:

ENTITY IfcFluidFlowProperties
SUBTYPE OF ( IfcPropertySetDefinition);
MaximumFlowRate  :  OPTIONAL IfcVolumetricFlowRateMeasure;
DesignFlowrate  :  OPTIONAL IfcVolumetricFlowRateMeasure;
MinimumFlowrate  :  OPTIONAL IfcVolumetricFlowRateMeasure;
PressureLoss  :  OPTIONAL IfcPressureMeasure;
WorkingPressure  :  OPTIONAL IfcPressureMeasure;
PressureRating  :  OPTIONAL IfcPressureMeasure;
Fluid  :  IfcMaterial;
DesignVelocity  :  OPTIONAL IfcLinearVelocityMeasure;
DesignTemperature  :  OPTIONAL LIST [1:2] OF IfcThermodynamicTemperatureMeasure;
MaximumTemperature  :  OPTIONAL LIST [1:2] OF IfcThermodynamicTemperatureMeasure;
MinimumTemperature  :  OPTIONAL LIST [1:2] OF IfcThermodynamicTemperatureMeasure;
WorkingTemperature  :  OPTIONAL LIST [1:2] OF IfcThermodynamicTemperatureMeasure;
WorkingQuality  :  OPTIONAL IfcRatioMeasure;
END_ENTITY;

Attribute definitions:

MaximumFlowRate  :  Maximum possible flowrate through all inlets.
DesignFlowrate  :  Design or intended flowrate through all inlets.
MinimumFlowrate  :  Minimum flowrate through all the inlets.
PressureLoss  :  Pressure loss at the DesignFlowrate.
WorkingPressure  :  The working pressure, or pressure that is exerted on the inlets.
PressureRating  :  The design pressure rating, or maximum pressure that this device can be subjected to.
Fluid  :  The properties of the fluid.
DesignVelocity  :  Velocity of the fluid at the DesignFlowrate.
DesignTemperature  :  List of design temperature of the fluid; for air the list consists of dry bulb temperature followed by wet bulb temperature.
MaximumTemperature  :  Maximum temperature of the fluid; for air the list consists of dry bulb temperature followed by wet bulb temperature.
MinimumTemperature  :  Minimum temperature of the fluid; for air the list consists of dry bulb temperature followed by wet bulb temperature.
WorkingTemperature  :  Working or actual temperature of the fluid; for air the list consists of dry bulb temperature followed by wet bulb temperature.
WorkingQuality  :  Defines ratio of vapor to liquid.

References (1):

Name Type Referred through Express-G
IfcPropertySetDefinition Entity
Subtype
Diagram 10

Inheritance graph

ENTITY IfcFluidFlowProperties;
ENTITY IfcRoot;
GlobalId  :  IfcGloballyUniqueId;
OwnerHistory  :  IfcOwnerHistory;
Name  :  OPTIONAL IfcLabel;
Description  :  OPTIONAL IfcText;
ENTITY IfcPropertyDefinition;
INVERSE
HasAssociations  :  SET OF IfcRelAssociates FOR RelatedObjects;
ENTITY IfcPropertySetDefinition;
INVERSE
PropertyDefinitionOf  :  SET [0:1] OF IfcRelDefinesByProperties FOR RelatingPropertyDefinition;
DefinesType  :  SET [0:1] OF IfcTypeObject FOR HasPropertySets;
ENTITY IfcFluidFlowProperties;
MaximumFlowRate  :  OPTIONAL IfcVolumetricFlowRateMeasure;
DesignFlowrate  :  OPTIONAL IfcVolumetricFlowRateMeasure;
MinimumFlowrate  :  OPTIONAL IfcVolumetricFlowRateMeasure;
PressureLoss  :  OPTIONAL IfcPressureMeasure;
WorkingPressure  :  OPTIONAL IfcPressureMeasure;
PressureRating  :  OPTIONAL IfcPressureMeasure;
Fluid  :  IfcMaterial;
DesignVelocity  :  OPTIONAL IfcLinearVelocityMeasure;
DesignTemperature  :  OPTIONAL LIST [1:2] OF IfcThermodynamicTemperatureMeasure;
MaximumTemperature  :  OPTIONAL LIST [1:2] OF IfcThermodynamicTemperatureMeasure;
MinimumTemperature  :  OPTIONAL LIST [1:2] OF IfcThermodynamicTemperatureMeasure;
WorkingTemperature  :  OPTIONAL LIST [1:2] OF IfcThermodynamicTemperatureMeasure;
WorkingQuality  :  OPTIONAL IfcRatioMeasure;
END_ENTITY;