thnttt

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Thank you for your fast reply. In my codes above, the compression process has the same entropy, and the parameters “Hha” and “Vha” are used to get the enthalpy and...

I think the problem I encountered in the isentropic compression process may be caused by the strange behavior of the Entropy subroutine in "HumidAirProps". For the dry air at any...

Is there any good news about this problem? I still need to calculate the isentropic compression work, but the strange results yielded by "HumidAirProps" worries me a lot. REFPROP doesn't...

Thank you for your attention! Here are the entropy and enthalpy varying with W. ![1](https://cloud.githubusercontent.com/assets/7394920/3039133/4b0f13c6-e0d8-11e3-8204-bc89a5536fdf.jpg) ![2](https://cloud.githubusercontent.com/assets/7394920/3039134/4b348ef8-e0d8-11e3-95d7-7db9ce7347d7.jpg) When using "Props" for dry air, the two ways to calculate the isentropic compression...

Thanks. Now I know the discontinuity at W=0 is an inherent character of the Entropy model. Here is the performance data of a compressor stage calculated with HAProps : ![1](https://cloud.githubusercontent.com/assets/7394920/3049352/f82ede86-e15c-11e3-9a11-627a64cbd321.jpg)...