Engineering, 13.02.2020 23:26 bludragonfly33
Air flowing through a duct is heated through contact with a heat exchanger through which steam is flowing. Dry air enters one inlet of the heat exchanger at 70 F and 13.7 psia with a volume flow rate of 2000ft^3 /min. Saturated steam at 15 psig enters the other heat exchanger inlet and exits with 15% quality.
a. Determine the heat transfer rate (Btu/hr) and mass flow rate of steam (lbm/hr) necessary to provide an air outlet temperature of 140 F.
Answers: 2
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