| Name | Description |
|---|---|
| HydraulicConductance | |
| HydraulicResistance | |
| LiquidDensity | start value for liquids |
| GasDensity | start value for gases/vapours |
| AbsoluteTemperature | Absolute temperature |
| AbsolutePressure | generic pressure |
| SpecificThermalResistance | Unit for fouling factors |