Distillation simulation
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BEGIN CASE R-1 TIME = 0.20 * WARNING WHILE EXECUTING DRS CASE: “R-1” DATA POINT 1 IN DATA GROUP D-1 USES % STD-DEV FOR A MEASUREMENT VALUE OF 0. THE DEFAULT VALUE OF 1 WILL BE USED. * WARNING WHILE EXECUTING DRS CASE: “R-1” DATA POINT 1 IN DATA GROUP D-1 USES % STD-DEV FOR A MEASUREMENT VALUE OF 0. THE DEFAULT VALUE OF 1 WILL BE USED. STARTING POINT TIME: 0.22 EQUATION OF STATE MODEL ESHOC HAS MISSING PARAMETERS: MUP (DATA SET 1) IS MISSING FOR COMPONENT BMIMDBP ****PROPERTY PARAMETER ERROR ERRORS ENCOUNTERED IN CALCULATION OF VAPOR MIXTURE FUGACITY COEFFICIENTS USING OPTION SET NRTL-HOC FOR PHIMX! Calculations were stopped due to missing property parameters. How can such error messages be corrected?
The error message indicates that two main issues arose during the distillation simulation: 1. Data point 1 used the percentage standard deviation in dataset D-1, but its measured value was 0. Value 1 is used by default. 2. The equation of state model ESHOC lacks parameters: the component BMIMDBP lacks MUP (Dataset 1). To resolve this issue, you need to: - For the first warning, check the input data for data point 1 to ensure that the measurement value is not 0 when using percentage standard deviation. - For the second error, the correct value for the missing MUP parameter in the equation of state model needs to be provided. You may need to search relevant literature or databases to find this parameter, or contact the model’s developer for assistance. .