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CalebBell / thermo

Thermodynamics and Phase Equilibrium component of Chemical Engineering Design Library (ChEDL)
MIT License
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water heat capacity should be 4184 J/kg/K, but it gives 1782.29... #74

Closed jtzhangjuul closed 3 years ago

jtzhangjuul commented 3 years ago

Hi, trying to calculate water specific heat, and found this error.

    subt = Chemical('water')
    subt.calculate(T=273+20, P=1e5)
    subt.Cpl
CalebBell commented 3 years ago

Hi Jian, I may need to develop an issue template now to gather basic information from users. Please upgrade your thermo version, try it again, and if it still doesn't work post:

What OS you use, your Python version, and your installed thermo, chemicals, and fluids versions.

jtzhangjuul commented 3 years ago

Hi Caleb, Thank you for getting back to me. Here is the info on this issue.

windows10, python 3.8 with Anaconda3, thermo 0.1.39

I installed it with 'conda install -c conda-forge thermo', but somehow it stuck with 0.1.39 version, and doesn't allow me to update to 0.2.3

Any suggestion to upgrade to the latest version is appriciated!

CalebBell commented 3 years ago

Hi Jian, It is indeed a bug in an old version of thermo. I can't help you with conda - it can be complicated sometimes. I suggest either uninstalling anaconda, and installing it again; or uninstalling thermo and fluids with conda, and installing them with pip.

I am closing the issue as it has since been fixed.

jtzhangjuul commented 3 years ago

Thank you very much! pip install fixed the version issue, and cp value looks correct in 0.2.3 :)