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oemof / tespy

Thermal Engineering Systems in Python (TESPy). This package provides a powerful simulation toolkit for thermal engineering plants such as power plants, district heating systems or heat pumps.
https://tespy.readthedocs.io
MIT License
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Saturation function cannot be called on mixtures. #516

Closed aljubrmj closed 3 weeks ago

aljubrmj commented 1 month ago

I am trying to run this project on geothermal ORC which is highlighted in the tespy documentation. Particularly, I am trying to run the python script parameter_influence.py. I get the following error. Can you please support?

ValueError: Saturation function cannot be called on mixtures.

fwitte commented 1 month ago

Hi @aljubrmj,

what version of tespy are you using? My guess is, that the mentioned repository is on an older version (hence the requirements.txt file with the version of tespy required for that project). If I can find the time, I will update the other repository and let you know, what the issue was.

Best

aljubrmj commented 1 month ago

Hi @fwitte, thank you for the quick response. I am using tespy-0.7.4. The mentioned repo is an older version, indeed, which may be causing the error. I would highly appreciate your support in figuring this out. Looking forward.

fwitte commented 1 month ago

Hi @aljubrmj.

you can try to use the scripts from this fork+ branch: https://github.com/fwitte/ORCSimulator/tree/update-to-tespy-0.7

They are not yet fully operational, there se, em to be some issues with some of the working fluids, which I could not get behind of in the short time. You can try to dig into it, if you like. All the models should now operational with the latest tespy API in principle. Once that has been figured out, I will adjust the scripts and push the changes to the main repository.

Thank you for reporting the bug! :)

fwitte commented 1 month ago

Hi again,

I think I have found the remaining issues with some of the working fluids. It was starting values in the initial simulation, you can check it on the branch I linked before.

Best

Francesco

fwitte commented 3 weeks ago

Closing this issue here, since it has been resolved.

aljubrmj commented 2 weeks ago

Hi Francesco, I just want to say thank you for your efforts. I will let you know if I face any other problems. Cheers