minimum rigorous stages

Discusses use of COCO, the process simulation and modelling software suite from AmsterCHEM, downloadable from http://www.cocosimulator.org

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minimum rigorous stages

Postby thubelihle » 20 November 2018, 06:12

hi. I decreased the number of stages and monitored the reflux ratio, to note the crazy jump in reflux ratio to determine the minimum number of stages using the rigorous approach. to my surprise there was a jump to a high value on stage 16 (see attachment), and then a drastic fall on stage 15. my question is shouldn't reflux ratio increase indefinitely as we decrease the number of stages till the column does not converge due to stages being specified being less than the minimum. thanks
Attachments
Luyben_minimumstages.fsd
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askreflux.PNG
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thubelihle
 
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