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Phase change of refrigerant
Posted Apr 18, 2021, 11:35 a.m. EDT Fluid & Heat, Heat Transfer & Phase Change, Computational Fluid Dynamics (CFD), Heat Transfer, Parameters, Variables, & Functions, Studies & Solvers, Equation-Based Modeling 0 Replies
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Dear all,
We want to simulate the phase change of the refrigerant in condenser(Vapor-Compressure-Refrigeration-System), and the refrigerant will change from the phase of vapor to liquid ( with the temperature from hot to cold).
And we have three goals: 1. The condensing temperature can be fixed by the working pressure. 2. The change of density will be different with the condensing process, like in superheating zone, liquid and gas mixing zone, and supercooling zone. 3. The variety of pressure will be different because the different density.
We currently use “The Heat Transfer in Solids and Fluids Interface” and “Laminar flow” to simulate, but we encounter big problems.
For example, the condensing temperature cannot be fixed by the working pressure, and it can't show the change about the zone of latent heat (the density characteristics of the refrigerant corresponding to the temperature can’t show the correct trend in the superheating zone, liquid and gas mixing zone, and supercooling zone, as well as pressure changes).
Does anyone know the other ways to do the refrigerant simulation? Or how to modify the setting to reach our goals?
Sincerelly thanks a lot
Hello Yiya Liao
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