Defined in File Ifc4.h
IfcHeatExchanger: public Ifc4::IfcEnergyConversionDevice¶
A heat exchanger is a device used to provide heat transfer between non-mixing media such as plate and shell and tube heat exchangers. IfcHeatExchanger is commonly used on water-side distribution systems to recover energy from a liquid to another liquid (typically water-based), whereas IfcAirToAirHeatRecovery is commonly used on air-side distribution systems to recover energy from a gas to a gas (usually air).
HISTORY New entity in IFC2x4
Type Use Definition IfcHeatExchanger defines the occurrence of any heat exchanger; common information about heat exchanger types is handled by IfcHeatExchangerType. The IfcHeatExchangerType (if present) may establish the common type name, usage (predefined type), properties, materials, ports, composition, assignments, and representations. The IfcHeatExchangerType is attached using the IfcRelDefinesByType objectified relationship and is accessible by the IsTypedBy inverse attribute. If the IfcHeatExchangerType has ports or aggregated elements, such objects are reflected at the IfcHeatExchanger 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 IfcHeatExchangerType, defining the common property data for all occurrences of the same type. They are then accessible by the IsTypedBy inverse attribute pointing to IfcHeatExchangerType.HasPropertySets. If both are given, then the properties directly defined at IfcHeatExchanger override the properties defined at IfcHeatExchangerType. 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)
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 IfcHeatExchanger 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 IfcHeatExchangerType, 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 IfcHeatExchanger are defined by IfcDistributionPort and attached by the IfcRelConnectsPortToElement relationship. If the heat exchanger occurrence is defined by IfcHeatExchangerType, then the port occurrences must reflect those defined at the IfcHeatExchangerType using the IfcRelDefinesByObject relationship. Ports are specific to the IfcHeatExchanger PredefinedType as follows indicated by the IfcDistributionPort Name, PredefinedType, and FlowDirection:
HeatingInlet (NOTDEFINED, SINK): Inlet of substance to be heated. HeatingOutlet (NOTDEFINED, SOURCE): Outlet of substance to be heated. CoolingInlet (NOTDEFINED, SINK): Inlet of substance to be cooled. CoolingOutlet (NOTDEFINED, SOURCE): Outlet of substance to be cooled.
Whether the optional attribute PredefinedType is defined for this IfcHeatExchanger.
IfcHeatExchanger(std::string v1_GlobalId, ::Ifc4::IfcOwnerHistory *v2_OwnerHistory, boost::optional<std::string> v3_Name, boost::optional<std::string> v4_Description, boost::optional<std::string> v5_ObjectType, ::Ifc4::IfcObjectPlacement *v6_ObjectPlacement, ::Ifc4::IfcProductRepresentation *v7_Representation, boost::optional<std::string> v8_Tag, boost::optional<::Ifc4::IfcHeatExchangerTypeEnum::Value> v9_PredefinedType)¶