Question

A shell-and-tube heat exchanger with 2-shell passes and 8-tube passes is used to heat ethyl alcohol (cp = 2670 j/kg · °c) in the tubes from 25°c to 70°c at a rate of 2.1 kg/s. the heating is to be done by water (cp = 4190 j/kg · °c) that enters the shell at 95°c and leaves at 60°c. if the overall heat transfer coefficient is 800 w/m2 · °c, determine the heat transfer surface area of the heat exchanger using effectiveness–ntu method.

Answer 1

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gरसुहोवुह

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