how can i get the specific heat at constant volume for two phase fluid Water/Steam
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Mario Augl-Buchberger on 25 Nov 2021
Answered: Yifeng Tang on 22 Jul 2022
I need the specific heat at constant volume and constant pressure vor the relation cp/cv.
This Link describes how we can get the specific heat at constant pressure, but how do we get the specifict heat capacity at constant volume?
best regards Mario
Yifeng Tang on 22 Jul 2022
You should be able to calculate Cv from Cp, temperature, thermal expansion coeffcient, density, and bulk modulus. All available from the fluids property tables. See Wikipedia page on specific heat:
I believe the beta_T here is the inverse of the bulk modulus.
Hope this helps.
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