Promax is by far and away the best simulator on the market.
HYSYS sucks because they are way overpriced and they nickel and dime you every chance they get. Not to mention that their customer service is horrable.
PRO II is good for running oil simulations and thats about it.
Promax is way...
I am trying to design a kettle reboiler for an amine regenerator. What is the best way to calculate the tube side heat transfer coefficient if I have 50psig saturated steam going into the tubes which completely condenses?