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Hi Daniel, I’ve attached the simulation we discussed earlier. I’m trying to determine the properties of a mixture at specific temperature and pressure conditions. However, we’re encountering an issue where, at certain (T,P) points as in the image bellow (P= 68bar T=40ºC), there’s a sudden phase change from fvap=1 to fvap=0, and then it reverts back to fvap=1, even when far from the critical point. We would greatly appreciate your help in this case. https://drive.google.com/drive/folders/1fvGiD-rmAF92v7rYkSJyoNvXxmZOmkrT?usp=sharing (attached the file to drive, github wasn't allowing upload |
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this is a very difficult system (CH4, CO2, H2O...), very difficult to calculate the critical point and may also have two liquid phases depending on the P/T conditions.
I recommend using GERG-2008 or PR/SRK with these settings:
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this is a very difficult system (CH4, CO2, H2O...), very difficult to calculate the critical point and may also have two liquid phases depending on the P/T conditions.
I recommend using GERG-2008 or PR/SRK with these settings: