Question: A cross - flow heat exchanger, with unmixed fluid, using water enters the tubes at 1 5 C and exits at 3 5 C .

A cross-flow heat exchanger, with unmixed fluid, using water enters the tubes at 15C and exits at 35C.
Air enters the bank in the perpendicular direction at 210C and 1 atm (atmosphere) with a mass flow rate of 1 kg/s and exits at 150C. Determine a) overall dimensions of the heat exchanger, diameter area and had thickness arrangement b) overall heat coefficient c) heat transferred.

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