Energy input to shortcut Column
Simulate chemical processes using advanced thermodynamic models
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hello, I have created a simulation to fractionate LPG mix into propane, butane, and condensate. The simulation runs and solves OK but the energy inputs to the tower reboiler and condesor seem very high. I had a very similar simulation done months ago on the Mac version of the software and it gives completely different energy requirements. the inlet composition and flowrate are the same, the tower parameters are the same and the output product compositions are the same. The new version done on windows (dwsim 8,71) shows the energy to be nearly 4 times what the Mac simulation stated. I cannot find anything different and both simulation work ok. I have fancied up the Windows version with a heat exchanger and prettier output format but essentilaly both are the same and use the same Peng Robinson EOS. I have attached the two simulations any advise is appreciated
oops seems mac version not attached