Defined in File Ifc4x1.h
IfcCooledBeam: public Ifc4x1::IfcEnergyConversionDevice¶
A cooled beam (or chilled beam) is a device typically used to cool air by circulating a fluid such as chilled water through exposed finned tubes above a space. Typically mounted overhead near or within a ceiling, the cooled beam uses convection to cool the space below it by acting as a heat sink for the naturally rising warm air of the space. Once cooled, the air naturally drops back to the floor where the cycle begins again.
HISTORY New entity in IFC2x4
Type Use Definition IfcCooledBeam defines the occurrence of any cooled beam; common information about cooled beam types is handled by IfcCooledBeamType. The IfcCooledBeamType (if present) may establish the common type name, usage (predefined type), properties, materials, ports, composition, assignments, and representations. The IfcCooledBeamType is attached using the IfcRelDefinesByType objectified relationship and is accessible by the IsTypedBy inverse attribute. If the IfcCooledBeamType has ports or aggregated elements, such objects are reflected at the IfcCooledBeam occurrence using the IfcRelDefinesByObject relationship.
Property Use Definition The property sets relating to this entity are defined by IfcPropertySet and attached by the IfcRelDefinesByProperties relationship. They are accessible by the IsDefinedBy inverse attribute. Property sets may also be specified at the IfcCooledBeamType, defining the common property data for all occurrences of the same type. They are then accessible by the IsTypedBy inverse attribute pointing to IfcCooledBeamType.HasPropertySets. If both are given, then the properties directly defined at IfcCooledBeam override the properties defined at IfcCooledBeamType. Refer to the documentation at the supertype IfcEnergyConversionDevice and ancestors for inherited property set definitions. The following property set definitions are applicable to this entity: (All Types)
Pset_CooledBeamPHistory (PSET_PERFORMANCEDRIVEN) Pset_CooledBeamTypeCommon (PSET_TYPEDRIVENOVERRIDE)
Pset_CooledBeamPHistoryActive (PSET_PERFORMANCEDRIVEN) Pset_CooledBeamTypeActive (PSET_TYPEDRIVENOVERRIDE)
Quantity Use Definition The quantities relating to this entity are defined by IfcElementQuantity and attached by the IfcRelDefinesByProperties relationship. They are accessible by the IsDefinedBy inverse attribute. The following base quantities are defined and shall be exchanged with the IfcElementQuantity.Name = ‘BaseQuantities’. Other quantities, being subjected to local standard of measurement, may be defined with another string value assigned to Name. In this case a valid value for MethodOfMeasurement shall be provided.
Material Use Definition The material of the IfcCooledBeam is defined by IfcMaterialConstituentSet or as a fallback by IfcMaterial, and attached by the RelatingMaterial attribute on the IfcRelAssociatesMaterial relationship. It is accessible by the HasAssociations inverse attribute. Material information can also be given at the IfcCooledBeamType, defining the common attribute data for all occurrences of the same type. The following keywords for IfcMaterialConstituentSet.MaterialConstituents[n].Name shall be used:
Body: The primary material from which the object is constructed.
Port Use Definition The distribution ports relating to the IfcCooledBeam are defined by IfcDistributionPort and attached by the IfcRelConnectsPortToElement relationship. If the cooled beam occurrence is defined by IfcCooledBeamType, then the port occurrences must reflect those defined at the IfcCooledBeamType using the IfcRelDefinesByObject relationship. Ports are specific to the IfcCooledBeam PredefinedType as follows indicated by the IfcDistributionPort Name, PredefinedType, and FlowDirection:
ChilledWaterIn (CHILLEDWATER, SINK): Chilled water entering. ChilledWaterOut (CHILLEDWATER, SOURCE): Chilled water leaving.
Whether the optional attribute PredefinedType is defined for this IfcCooledBeam.
IfcCooledBeam(std::string v1_GlobalId, ::Ifc4x1::IfcOwnerHistory *v2_OwnerHistory, boost::optional<std::string> v3_Name, boost::optional<std::string> v4_Description, boost::optional<std::string> v5_ObjectType, ::Ifc4x1::IfcObjectPlacement *v6_ObjectPlacement, ::Ifc4x1::IfcProductRepresentation *v7_Representation, boost::optional<std::string> v8_Tag, boost::optional<::Ifc4x1::IfcCooledBeamTypeEnum::Value> v9_PredefinedType)¶