There are warnings appearing during AspenPlus simulations; please help, experts!
Thread Content
Physical Property System Simulation: Terminal Errors – 0 0 0; Severe Errors – 0 0 0; Errors – 0 0 0; Warnings – 3 0 0. -> Processing input specifications... * WARNING: In the Physical Property System, the Wilson binary parameters for all component pairs are zero; therefore, your results may not be accurate. Please review and provide the appropriate binary parameters. * WARNING: In the Physical Property System, the NRTL binary parameters for all component pairs are zero; your results may not be accurate. Please review and provide the appropriate binary parameters. * WARNING: In the Physical Property System, the UNIQUAC binary parameters for all component pairs are zero; your results may not be accurate. Please review and provide the appropriate binary parameters. Why is it that the messages “Wilson binary parameters for all component pairs are zero”, “NRTL binary parameters for all component pairs are zero”, and “UNIQUAC binary parameters for all component pairs are zero” keep appearing? Where is the problem – was the material property method chosen incorrectly? Can the simulated data still be used?
You say that all the binary interaction coefficients in these equations are 0, so the results should not be reliable
Upload the file to take a look; under normal circumstances not everything will be missing, unless you have very few items, for example only two, and one of them is uncommon
Personal opinion: You can close the software and re-enter it
Your materials do not match the selected property calculation method; it is recommended to upload the file for inspection! Or take a screenshot
It is indicated that the binary interaction parameters between all components in the selected Wilson equation are set to 0; as a result, the simulation outcomes may not be accurate, and it is necessary for you to provide these parameters.