Binary vapor-liquid phase equilibrium data regression
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aspen version: When V8.8 is regressing the vapor-liquid equilibrium data of chlorine and carbon dioxide, the regression fails for some unknown reason. Please give me some advice.
In thermodynamics, a thermodynamic consistency test needs to be done, and the test failed here. Maybe the experimental data is not very good, or the model used does not fit well. You can try another model.
This is not a regression failure, but a thermodynamic consistency failure. The area method is a test of the overall accuracy of the data, and the test result is required to be less than 10. Your result is more than 80, indicating that the data measurement error is large. You can verify it through the point-by-point test method, discard the obviously unreasonable data points, or redo these unreasonable experimental points.