recordEoS_IIR_P1_395_T233_370

Record with fitting coefficients calculated for first implementation

Extends from AixLib.DataBase.Media.Refrigerants.HelmholtzEquationOfStateBaseDateDefinition.

Information

In this record, fitting coefficients are provided for the Helmholtz equation of state (EoS). For detailed information of the EoS as well as the fitting coefficients, please checkout AixLib.DataBase.Media.Refrigerants.HelmholtzEquationOfStateBaseDateDefinition . The fitting coefficients are used in a hybrid refrigerant model provided in AixLib.Media.Refrigerants. For detailed information, please checkout AixLib.Media.Refrigerants.Interfaces.TemplateHybridTwoPhaseMediumRecord.

Assumptions and limitations

The provided coefficients are fitted to external data by Engelpracht and are valid within the following range:

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Parameter

Minimum Value

Maximum Value

Pressure (p) in bar

1

39.5

Temperature (T) in K

233.15

370.15

The reference point is defined as 200 kJ/kg and 1 kJ/kg/K, respectively, for enthalpy and entropy for the saturated liquid at 273.15 K.

References

Engelpracht, Mirko (2017): Development of modular and scalable simulation models for heat pumps and chillers considering various refrigerants. Master Thesis

Revisions

  • June 14, 2017, by Mirko Engelpracht, Christian Vering:
    First implementation (see issue 408).