Aspen binary interaction parameters data regression
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I have a question: when I’m doing the regression calculations for the liquid-liquid phase equilibrium data of ternary systems in the book \"Chemical Engineering Calculations and Software Applications\", I keep encountering this error. What’s going wrong, and how should I fix it?
Carefully check the input data; if there are issues with the examples in the textbook, it’s definitely due to problems with the input
First, check if there are any issues with the experimental data； Is there anything wrong with the selected model? ； Finally, when making the regression, were the model parameters, upper and lower limits, and initial values chosen correctly?