Class Ifc4x2::IfcCoil

Nested Relationships

This class is a nested type of Struct Ifc4x2.

Inheritance Relationships

Base Type

Class Documentation

class Ifc4x2::IfcCoil : public Ifc4x2::IfcEnergyConversionDevice

A coil is a device used to provide heat transfer between non-mixing media. A common example is a cooling coil, which utilizes a finned coil in which circulates chilled water, antifreeze, or refrigerant that is used to remove heat from air moving across the surface of the coil. A coil may be used either for heating or cooling purposes by placing a series of tubes (the coil) carrying a heating or cooling fluid into an airstream. The coil may be constructed from tubes bundled in a serpentine form or from finned tubes that give a extended heat transfer surface. Coils may also be used for non-airflow cases such as embedded in a floor slab.

HISTORY New entity in IFC2x4

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

Qto_CoilBaseQuantities

Material Use Definition The material of the IfcCoil 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 IfcCoilType, 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 IfcCoil are defined by IfcDistributionPort and attached by the IfcRelConnectsPortToElement relationship. If the coil occurrence is defined by IfcCoilType, then the port occurrences must reflect those defined at the IfcCoilType using the IfcRelDefinesByObject relationship. Ports are specific to the IfcCoil PredefinedType as follows indicated by the IfcDistributionPort Name, PredefinedType, and FlowDirection:

DXCOOLINGCOIL

RefrigerantIn (REFRIGERATION, SINK): Refrigerant entering the coil. RefrigerantOut (REFRIGERATION, SOURCE): Refrigerant leaving the coil. AirIn (AIRCONDITIONING, SINK): Air entering the surface of the coil. AirOut (AIRCONDITIONING, SOURCE): Air leaving the surface of the coil.

WATERCOOLINGCOIL

ChilledWaterIn (CHILLEDWATER, SINK): Chilled water entering the coil. ChilledWaterOut (CHILLEDWATER, SOURCE): Chilled water leaving the coil. AirIn (AIRCONDITIONING, SINK): Air entering the surface of the coil. AirOut (AIRCONDITIONING, SOURCE): Air leaving the surface of the coil.

WATERHEATINGCOIL

HeatingIn (HEATING, SINK): Heated water entering the coil. HeatingOut (HEATING, SOURCE): Heated water leaving the coil. AirIn (AIRCONDITIONING, SINK): Air entering the surface of the coil. AirOut (AIRCONDITIONING, SOURCE): Air leaving the surface of the coil.

Figure 216 illustrates coil port use. Figure 216 — Coil port use

Public Types

typedef IfcTemplatedEntityList<IfcCoil> list

Public Functions

bool hasPredefinedType() const

Whether the optional attribute PredefinedType is defined for this IfcCoil.

::Ifc4x2::IfcCoilTypeEnum::Value PredefinedType() const
void setPredefinedType(::Ifc4x2::IfcCoilTypeEnum::Value v)
const IfcParse::entity &declaration() const
IfcCoil(IfcEntityInstanceData *e)
IfcCoil(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::IfcCoilTypeEnum::Value> v9_PredefinedType)

Public Static Functions

const IfcParse::entity &Class()