Determining the operating conditions of the chiller.
Air at 1 atm and 80 °C is fed to a chiller. The air contains water vapor at 15 degrees of superheat. The air stream is chilled to condense 50% of the water in the feed.
At what temperature must the chiller operate if the product streams are also at 1 atm total pressure? __________ ± 0.5°C