I've been struggling for days to modify NRTL interaction parameters. I know that in Configure Property Package tab I can manually input interaction parameters for any pair I want. The problem is that regardless which numbers I input in the table the activity coefficients (calculated based on interaction parameters) of my components remain the same. I already checked using python script that the obtained activity coefficients are incorrect when I use correct interaction parameters. I will appreciate if someone could share how to modify interaction parameters so they affect activity coefficient calculations.
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In DWSIM 8.7.1 (latest) I'm able to change the BIPs normally for NRTL. The binary envelope below was generated with two NRTL Property Packages, the second one has the BIPs set to -250/+250:
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Hello,
I've been struggling for days to modify NRTL interaction parameters. I know that in Configure Property Package tab I can manually input interaction parameters for any pair I want. The problem is that regardless which numbers I input in the table the activity coefficients (calculated based on interaction parameters) of my components remain the same. I already checked using python script that the obtained activity coefficients are incorrect when I use correct interaction parameters. I will appreciate if someone could share how to modify interaction parameters so they affect activity coefficient calculations.
In DWSIM 8.7.1 (latest) I'm able to change the BIPs normally for NRTL. The binary envelope below was generated with two NRTL Property Packages, the second one has the BIPs set to -250/+250:
Hello,
Thanks Daniel for a response.