7.5.4.14 Pset_ChillerTypeCommon
7.5.4.14.1 Semantic definition
Chiller type common attributes.
7.5.4.14.2 Applicable entities
7.5.4.14.3 Properties
| Name | Property Type | Data Type | Description | |
|---|---|---|---|---|
| Reference | IfcPropertySingleValue | IfcIdentifier |
Reference ID for this specified type in this project (e.g. type 'A-1'), Also referred to as "construction type". It should be provided as an alternative to the name of the "object type", if the software does not support object types and no classification reference to a recognized classification system used. |
|
| Status | IfcPropertyEnumeratedValue | PEnum_ElementStatus |
Status of the element, predominately used in renovation or retrofitting projects. The status can be assigned to as "New" - element designed as new addition, "Existing" - element exists and remains, "Demolish" - element existed but is to be demolished, "Temporary" - element will exists only temporary (like a temporary support structure). |
|
| ChillerCapacity | IfcPropertySingleValue | IfcPowerMeasure |
Nominal cooling capacity of chiller at standardized conditions as defined by the agency having jurisdiction. |
|
| NominalEfficiency | IfcPropertySingleValue | IfcPositiveRatioMeasure |
Nominal object efficiency under nominal conditions. |
|
| NominalCondensingTemperature | IfcPropertySingleValue | IfcThermodynamicTemperatureMeasure |
Chiller condensing temperature. |
|
| NominalEvaporatingTemperature | IfcPropertySingleValue | IfcThermodynamicTemperatureMeasure |
Chiller evaporating temperature. |
|
| NominalHeatRejectionRate | IfcPropertySingleValue | IfcPowerMeasure |
Sum of the refrigeration effect and the heat equivalent of the power input to the compressor. |
|
| NominalPowerConsumption | IfcPropertySingleValue | IfcPowerMeasure |
Nominal total power consumption. |
|
| CapacityCurve | IfcPropertyTableValue | IfcPowerMeasure/IfcThermodynamicTemperatureMeasure |
Chiller cooling capacity is a function of condensing temperature and evaporating temperature, data is in table form, Capacity = f (TempCon, TempEvp), capacity = a1+b1*Tei+c1*Tei\^2+d1*Tci+e1*Tci\^2+f1*Tei*Tci. This table uses multiple input variables; to represent, both DefiningValues and DefinedValues lists are null and IfcTable is attached using IfcPropertyConstraintRelationship and IfcMetric. Columns are specified in the following order: 1.IfcPowerMeasure:Capacity 2.IfcThermodynamicTemperatureMeasure:CondensingTemperature 3.IfcThermodynamicTemperatureMeasure:EvaporatingTemperature |
|
| CoefficientOfPerformanceCurve | IfcPropertyTableValue | IfcReal/IfcThermodynamicTemperatureMeasure |
Chiller coefficient of performance (COP) is function of condensing temperature and evaporating temperature, data is in table form, COP= f (TempCon, TempEvp), COP = a2+b2*Tei+c2*Tei\^2+d2*Tci+e2*Tci\^2+f2*Tei*Tci. This table uses multiple input variables; to represent, both DefiningValues and DefinedValues lists are null and IfcTable is attached using IfcPropertyConstraintRelationship and IfcMetric. Columns are specified in the following order: 1.IfcPositiveRatioMeasure:CoefficientOfPerformance 2.IfcThermodynamicTemperatureMeasure:CondensingTemperature 3.IfcThermodynamicTemperatureMeasure:EvaporatingTemperature |
|
| FullLoadRatioCurve | IfcPropertyTableValue | IfcNormalisedRatioMeasure/IfcPositiveRatioMeasure |
Ratio of actual power to full load power as a quadratic function of part load, at certain condensing and evaporating temperature, FracFullLoadPower = f ( PartLoadRatio). |