modelWetterAfjei1997
Validate the values described by Wetter, Afjei and Glass
Extends from Modelica.Icons.Example (Icon for runnable examples).
Information
Test model to validate if the equation fit the data in Figure 3 in the paper by Wetter, Afjei and Glass. Also, the option to disable frosting surpression if air is not used is tested.References
Thomas Afjei, Michael Wetter and Andrew Glass.
TRNSYS type: Dual-stage compressor heat pump including frost and cycle losses. Model description and implementation in TRNSYS.
TRNSYS user meeting, November 1997, Stuttgart, Germany.
https://simulationresearch.lbl.gov/wetter/download/type204_hp.pdf
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealOutput | iceFacWat | Icing factor from 0 to 1 to estimate influence of icing | |
| AixLib.Fluid.HeatPumps.ModularReversible.BaseClasses.RefrigerantMachineControlBus | sigBus1 | Bus-connector used in a heat pump | |
| Modelica.Blocks.Interfaces.RealOutput | iceFacAir | Icing factor from 0 to 1 to estimate influence of icing |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| AixLib.Fluid.HeatPumps.ModularReversible.RefrigerantCycle.Frosting.FunctionalIcingFactor | iceFacWatSou | Water source icing factor | |
| Modelica.Blocks.Sources.Constant | const | Values are irrelevant for the function | |
| Modelica.Blocks.Sources.Ramp | ramp | Outdoor air temperature ramp | |
| FunctionalIcingFactor | iceFacAirSou | Air source icing factor |
Revisions
-
April 17, 2025, by Fabian Wuellhorst:
First implementation, see IBPSA #1975