Class Ifc4x1::IfcBoiler

Nested Relationships

This class is a nested type of Struct Ifc4x1.

Inheritance Relationships

Base Type

Class Documentation

class Ifc4x1::IfcBoiler : public Ifc4x1::IfcEnergyConversionDevice

A boiler is a closed, pressure-rated vessel in which water or other fluid is heated using an energy source such as natural gas, heating oil, or electricity. The fluid in the vessel is then circulated out of the boiler for use in various processes or heating applications. IfcBoiler is a vessel solely used for heating of water or other fluids. Storage vessels, such as for drinking water storage are considered as tanks and use the IfcTank entity.

HISTORY New entity in IFC2x4

Type Use Definition IfcBoiler defines the occurrence of any boiler; common information about boiler types is handled by IfcBoilerType. The IfcBoilerType (if present) may establish the common type name, usage (predefined type), properties, materials, ports, composition, assignments, and representations. The IfcBoilerType is attached using the IfcRelDefinesByType objectified relationship and is accessible by the IsTypedBy inverse attribute. If the IfcBoilerType has ports or aggregated elements, such objects are reflected at the IfcBoiler occurrence using the IfcRelDefinesByObject relationship. Figure 212 illustrates boiler type use. Figure 212 — Boiler type use

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 IfcBoilerType, defining the common property data for all occurrences of the same type. They are then accessible by the IsTypedBy inverse attribute pointing to IfcBoilerType.HasPropertySets. If both are given, then the properties directly defined at IfcBoiler override the properties defined at IfcBoilerType. 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 IfcBoiler 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 IfcBoilerType, 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 IfcBoiler are defined by IfcDistributionPort and attached by the IfcRelConnectsPortToElement relationship. If the boiler occurrence is defined by IfcBoilerType, then the port occurrences must reflect those defined at the IfcBoilerType using the IfcRelDefinesByObject relationship. Ports are specific to the IfcBoiler PredefinedType as follows indicated by the IfcDistributionPort Name, PredefinedType, and FlowDirection:


Gas (GAS, SINK): Gas inlet for burner. Exhaust (EXHAUST, SOURCE): Exhaust sent to chimney. Condenser (CONDENSERWATER, SOURCE): Water feed such as from condenser. Heating (HEATING, SOURCE): Steam sent to heating coils and space heaters.


Gas (GAS, SINK): Gas inlet for burner. Exhaust (EXHAUST, SOURCE): Exhaust sent to chimney. ColdWater (DOMESTICCOLDWATER, SINK): Cold water to be heated. HotWater (DOMESTICHOTWATER, SOURCE): Hot water heated.

Figure 213 illustrates boiler port use. Figure 213 — Boiler port use

Public Types

typedef IfcTemplatedEntityList<IfcBoiler> list

Public Functions

bool hasPredefinedType() const

Whether the optional attribute PredefinedType is defined for this IfcBoiler.

::Ifc4x1::IfcBoilerTypeEnum::Value PredefinedType() const
void setPredefinedType(::Ifc4x1::IfcBoilerTypeEnum::Value v)
const IfcParse::entity &declaration() const
IfcBoiler(IfcEntityInstanceData *e)
IfcBoiler(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::IfcBoilerTypeEnum::Value> v9_PredefinedType)

Public Static Functions

const IfcParse::entity &Class()