My name is Edu and I'm writting my master's thesis about an ORC cycle.
Have you ever modelled R245fa in Ansys CFX? First, I want to try it considering it to behave like an ideal gas, because the pressures of my expantion are very low! I would like to know if the Peng Robinson refrigerant option is a good one? and if it's the case, wet or dry?
I also calculated a Cp of 1156 J/kgK!
Only you can answer that question as what you are doing with the fluid and the accuracy you require will determine which fluid model is required.
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