Hi folks,

I'm learning about simulation software, Aspen Hysys.

I'm currently trying to simulate double-column air separation unit in ASPEN Hysys v8.0 and I'm having trouble with converging the low pressure column since it is stated that I'm having heat/spec error of approximately 0.0099. From what I know, heat/spec error comes from the heat flow imbalance on each tray divided by total average heat flow. I tried to alter the number of trays but not much of help came from there.

Any other suggestion(s) on what I should fix or look at in my column?

Thanks in advance for the advice. Have a nice day!

See More: Heat/spec error in distillation column