7.5.4.18 Pset_CoilTypeHydronic
7.5.4.18.1 Semantic definition
Hydronic coil type attributes.
7.5.4.18.2 Applicable entities
7.5.4.18.3 Properties
| Name | Property Type | Data Type | Description | |
|---|---|---|---|---|
| FluidPressureRange | IfcPropertyBoundedValue | IfcPressureMeasure |
Allowable water working pressure range inside the tube. |
|
| CoilCoolant | IfcPropertyEnumeratedValue | PEnum_CoilCoolant |
The fluid used for heating or cooling used by the hydronic coil. |
|
| CoilConnectionDirection | IfcPropertyEnumeratedValue | PEnum_CoilConnectionDirection |
Coil connection direction (facing into the air stream). |
|
| CoilFluidArrangement | IfcPropertyEnumeratedValue | PEnum_CoilFluidArrangement |
Fluid flow arrangement of the coil. CrossCounterFlow: Air and water flow enter in different directions. CrossFlow: Air and water flow are perpendicular. CrossParallelFlow: Air and water flow enter in same directions. |
|
| CoilFaceArea | IfcPropertySingleValue | IfcAreaMeasure |
Coil face area in the direction against air the flow. |
|
| HeatExchangeSurfaceArea | IfcPropertySingleValue | IfcAreaMeasure |
Heat exchange surface area associated with U-value. |
|
| PrimarySurfaceArea | IfcPropertySingleValue | IfcAreaMeasure |
Primary heat transfer surface area of the tubes and headers. |
|
| SecondarySurfaceArea | IfcPropertySingleValue | IfcAreaMeasure |
Secondary heat transfer surface area created by fins. |
|
| TotalUACurves | IfcPropertyTableValue | IfcVolumetricFlowRateMeasure/IfcReal |
Total UA curves, UA - air and water velocities, UA = [(C1 * AirFlowRate\^0.8)\^-1 + (C2 * WaterFlowRate\^0.8)\^-1]\^-1. Note: as two variables are used, DefiningValues and DefinedValues are null, and values are stored in IfcTable in the following order: AirFlowRate,WaterFlowRate,UA. The IfcTable is related to IfcPropertyTableValue using IfcMetric and IfcResourceConstraintRelationship. |
|
| WaterPressureDropCurve | IfcPropertyTableValue | IfcPressureMeasure/IfcVolumetricFlowRateMeasure |
Water pressure drop curve, pressure drop – flow rate curve, WaterPressureDrop = f(WaterflowRate). |
|
| BypassFactor | IfcPropertySingleValue | IfcNormalisedRatioMeasure |
Fraction of air that is bypassed by the coil (0-1). |
|
| SensibleHeatRatio | IfcPropertySingleValue | IfcNormalisedRatioMeasure |
Air-side sensible heat ratio, or fraction of sensible heat transfer to the total heat transfer. |
|
| WetCoilFraction | IfcPropertySingleValue | IfcNormalisedRatioMeasure |
Fraction of coil surface area that is wet (0-1). |