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Hello !!!!!
I'm working on a dynamic simulation in hysys (batch distillation) ... I'm having a big problem with a condenser. The flow of vapour is about 250 kg / h. I've set a heat exchanger volume equal to 0.08 m3 . When I start the simulation the mass balances are correct (although with some inaccuracy), but the compositions of the incoming steam and condensate (fraction of steam is zero) don't correct. How do I solve the problem ????.
I tried to fix a volume of 0.001 m3 and balance are correct, but I have problems with the simulation because it becomes highly unstable. I tried to reduce the step size and modify the execution rate of composition and flash calculation, but without results.
how can i do????...i'm desperate...please help me!!!!!
thanks in advance!!!!
p.s. sorry for my bad english
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