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[Light]

I am designing a condenser to condense ethylene oxide on the shell side of a shell & tube heat exchanger using cooling water on the tube side. The condenser operating pressure is 2 atm and at this pressure, Ethylene Oxide condenses at 30 deg C. No subcooling takes place in the condenser. How should I select the temperature of the chilled water to be used and what should be the allowable temperature rise of the chilled water at the outlet?

[srfish]

If you want to keep this into a single E-type shell-and-tube heat exchanger, the maximum outlet chilled water temperature should be a maximum of 1 to 2 degrees above 30 C. The inlet chilled water temperature depends on the economics of that system.