Chemical Engineering > GATE 2010 > Heat Exchangers
Hot oil at 150°C is used to preheat a cold fluid at 30°C in a 1-1 shell and tube heat exchanger. The exit temperature of the hot oil is 110°C. Heat capacities (product of mass flow rate and specific heat capacity) of both the streams are equal. The heat duty is 2 kW.
Under co-current flow conditions, the overall heat transfer resistance (1/UA) is
Under co-current flow conditions, the overall heat transfer resistance (1/UA) is
Correct : b
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