Failed to calculate logFugacityCoefficient

[Chani]

Hello,

I am getting these messages when solving this flowsheet:

- Invalid floating point operation
- error: calculate failed for unit IAT: run failed: Failed to calculate logFugacityCoefficient: CalcSinglePhaseProp failed: Property evaluation using equation of state failed: Total composition is zero

Any solution for this?

[jasper]

The issue is being looked into

[jasper]

To make this run, you added Sulphur to ChemSep's PCD files, correct? Can you provide the PCD file?

[Chani]

Yes, I added Sulfur and Sulfuric acid.

It doesn't allow me to add the extension pcd to this forum. I will send it to your email.

[jasper]

[jasper]

[Chani]

Thank you Jasper and Dr. Ross for the reply.

I have checked and the gas feed is at the bottom and liquid at the top of the column.

Yes, I know I can't modify chemsep databank of compounds so I created my own pcd file and added the rest of the components I need and saved it in another location.

[alrep3011]

Hi, I´m trying to do the same simulation but I can´t add the properties of sulfur, it shows multiple errors and missing data, could you send me the pcd file that you use on your program please?

[jasper]

If you are using TEA - you can just load Sulphur (S8) from Solids.pcd. Hit the Browse button:

Screenshot 2023-05-30 093344.png (41.09 KiB) Viewed 10781 times

[alrep3011]