.BuildingSystems.Fluid.HeatPumps.ModularReversible.RefrigerantCycle.Frosting.Functions.partialIcingFactor

Information

Base function for calculation of the icing factor iceFac. It represents the reduction of heat exchange as a result of icing of the evaporator.

This function is used in the model BuildingSystems.Fluid.HeatPumps.ModularReversible.RefrigerantCycle.Frosting.FunctionalIcingFactor.

Typically, functions should only require evaporator side data for calculation of the iceFac.

For more information on the iceFac, see the documentation of BuildingSystems.Fluid.HeatPumps.ModularReversible.RefrigerantCycle.BaseClasses.PartialRefrigerantCycle

Interface

partial function partialIcingFactor
  extends Modelica.Icons.Function;
  input Modelica.Units.SI.ThermodynamicTemperature TEvaInMea "Evaporator supply temperature. Should be equal to outdoor air temperature";
  input Modelica.Units.SI.ThermodynamicTemperature TEvaOutMea "Evaporator return temperature";
  input Modelica.Units.SI.MassFlowRate mEva_flow "Mass flow rate at the evaporator";
  output Real iceFac(final unit = "1", min = 0, max = 1) "Icing factor (0: no heat transfer; 1: no effect)";
end partialIcingFactor;

Revisions

• November 26, 2018, by Fabian Wuellhorst:
  First implementation (see issue AixLib #577)