.AixLib.Media.Refrigerants.Validation.RefrigerantsFittedFormulas.RefrigerantsFittedFormulasR410a

Information

This example models checks the implementation of the refrigerant's fitted formulas depending on the independent variables density and temperature. Therefore, the user has first to introduce some information about the refrigerant and afterwards the fitted formulas are calculated. The following refrigerant's information is required:

1. The refrigerant package that shall be tested.
2. The refrigerant's fluid limits that are determined by the fitting procedure.

The following refrigerant's fitted formulas are calculated and checked:

1. Calculation of the saturation properties.
2. Calculation of further state propeties like the density depending on pressure and temperature.

Additionally, the fitted formulas are also calculated with an external media libary (i.e. ExternalMedia).

Limitations

Unfortunately, it is not possible to directly call formulas related to the Helmholtz equation of state for the ExternalMedia library. Thus, these formulas are set to unity and cannot be validated directly in Modelica. Therefore, the parameters are not allowed to change (except for the medium package).

Revisions

• August 13, 2017, by Mirko Engelpracht, Christian Vering:
  First implementation (see issue 408).