Class Ifc4x2::IfcCoolingTower

Nested Relationships

This class is a nested type of Struct Ifc4x2.

Inheritance Relationships

Base Type

Class Documentation

class Ifc4x2::IfcCoolingTower : public Ifc4x2::IfcEnergyConversionDevice

A cooling tower is a device which rejects heat to ambient air by circulating a fluid such as water through it to reduce its temperature by partial evaporation.

HISTORY New entity in IFC2x4

Type Use Definition IfcCoolingTower defines the occurrence of any cooling tower; common information about cooling tower types is handled by IfcCoolingTowerType. The IfcCoolingTowerType (if present) may establish the common type name, usage (predefined type), properties, materials, ports, composition, assignments, and representations. The IfcCoolingTowerType is attached using the IfcRelDefinesByType objectified relationship and is accessible by the IsTypedBy inverse attribute. If the IfcCoolingTowerType has ports or aggregated elements, such objects are reflected at the IfcCoolingTower 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 IfcCoolingTowerType, defining the common property data for all occurrences of the same type. They are then accessible by the IsTypedBy inverse attribute pointing to IfcCoolingTowerType.HasPropertySets. If both are given, then the properties directly defined at IfcCoolingTower override the properties defined at IfcCoolingTowerType. 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: Pset_CoolingTowerPHistory (PSET_PERFORMANCEDRIVEN) Pset_CoolingTowerTypeCommon (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 IfcCoolingTower 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 IfcCoolingTowerType, 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. Fill: Fill material.

Composition Use Definition The IfcCoolingTower may be aggregated into components using IfcRelAggregates where RelatingObject refers to the enclosing IfcCoolingTower and RelatedObjects contains one or more components. Aggregation use is defined for the following predefined types:


May contain IfcFan components for forcing air into the cooling tower.


May contain IfcFan components for inducing air out of the cooling tower.

Port Use Definition The distribution ports relating to the IfcCoolingTower are defined by IfcDistributionPort and attached by the IfcRelConnectsPortToElement relationship. If the cooling tower occurrence is defined by IfcCoolingTowerType, then the port occurrences must reflect those defined at the IfcCoolingTowerType using the IfcRelDefinesByObject relationship. Ports are specific to the IfcCoolingTower PredefinedType as follows indicated by the IfcDistributionPort Name, PredefinedType, and FlowDirection:

CondenserWaterIn (CONDENSERWATER, SINK): Warmer water entering the cooling tower. CondenserWaterOut (CONDENSERWATER, SOURCE): Cooler water leaving the cooling tower.

Figure 219 illustrates cooling tower port use. Figure 219 — Cooling tower port use

Public Types

typedef IfcTemplatedEntityList<IfcCoolingTower> list

Public Functions

bool hasPredefinedType() const

Whether the optional attribute PredefinedType is defined for this IfcCoolingTower.

::Ifc4x2::IfcCoolingTowerTypeEnum::Value PredefinedType() const
void setPredefinedType(::Ifc4x2::IfcCoolingTowerTypeEnum::Value v)
const IfcParse::entity &declaration() const
IfcCoolingTower(IfcEntityInstanceData *e)
IfcCoolingTower(std::string v1_GlobalId, ::Ifc4x2::IfcOwnerHistory *v2_OwnerHistory, boost::optional<std::string> v3_Name, boost::optional<std::string> v4_Description, boost::optional<std::string> v5_ObjectType, ::Ifc4x2::IfcObjectPlacement *v6_ObjectPlacement, ::Ifc4x2::IfcProductRepresentation *v7_Representation, boost::optional<std::string> v8_Tag, boost::optional<::Ifc4x2::IfcCoolingTowerTypeEnum::Value> v9_PredefinedType)

Public Static Functions

const IfcParse::entity &Class()