Aspen simulation error, seeking help
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I encountered an error while simulating the flashing of glycerol oleate, water, and methanol -> Processing input specifications... * WARNING in the physical property system: Parameter DGFORM/ELEMENT 1 (DATA SET 1) – the upper bound has been violated for the triolein component; the value is 0.17230E+11, while the upper bound is 0.50000E+10. Flowsheet analysis: Calculation order for the flowsheet: B1 -> Calculations have begun... *** SEVERE ERROR in the physical property system: The Watson vaporization heat model lacks necessary parameters – DHVLWT/1ST ELEMENT (DATA SET 1) is missing for the triolein component, and DHVLWT/2ND ELEMENT (DATA SET 1) is also missing for triolein. **** Property parameter errors were encountered during the calculation of the molar enthalpy of the liquid mixture, using the UNIQUAC option set. Calculations were stopped due to missing property parameters. Where exactly is the error?
Your parameters exceed the limits set by the physical properties; it’s likely due to an error in the units. Please check carefully!
I encountered a similar problem: WARNING IN PHYSICAL PROPERTY SYSTEM PARAMETER DGFORM/ELEMENT 1 (DATA SET 1) UPPER BOUND VIOLATED FOR COMPONENT MC VALUE = 0.62174E+10, UPPER BOUND = 0.50000E+10
Reply to 6# zb713258: Has this problem been solved? I’ve encountered it as well and I can’t figure it out on my own