Ternary Mixtures and Phase Diagrams in Thermopack

[Aliznia]

Dear Vegard,

Thank you so much for providing such a useful, user-friendly, and comprehensive open-source equation of state, Thermopack. It has made my life easier and more efficient!

I have a couple of questions. I wanted to ask how I can add a ternary mixture, specifically a mixture of Ammonia, Nitrogen, and Hydrogen, and use the outputs. Is there any limitation for using ternary mixtures in the provided EOS in Thermopack? I apologize if I missed the guidance on ternary mixtures from the examples in the add-on.

Additionally, I'd like to ask how I can draw a phase diagram for this ternary mixture using Thermopack.

Thank you so much again for your support.

Best regards,

Ali Zamani

[morteham]

Dear Ali,

If you want to draw a ternary diagram for constant temperature and pressure, Thermopack is currently not able to make such plots.

It should however not be a problem to map isopleths or to do temperature-pressure flash calculations. This should be straight forward for your mixture. Define a mixture "NH3,N2,H2" with your EOS of choice and perform the wanted calculations. See the thermopack/addon/pyExamples folder for multiple examples.

Regards,
Morten