Heat Exchanger Problem
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11.37 Saturated steam at 110 °C is condensed in a shell- and-tube heat exchanger (1 shell pass; 2, 4, · · · tube passes) with a UA value of 2.5 kW/K. Cooling water enters at 40 °C. (a) Using MATLAB, calculate the cooling water flow rate required to maintain a heat rate of 150 kW. (b) Assuming that UA is independent of flow rate, calculate and plot the water flow rate required to provide heat rates over the range from 130 to 160 kW. Comment on the validity of your assumption.
description
Heat exchanger problem.
Transcript of Heat Exchanger Problem
11.37 Saturated steam at 110 C is condensed in a shell-and-tube heat exchanger (1 shell pass; 2, 4, tube passes) with a UA value of 2.5 kW/K. Cooling water enters at 40 C.
(a) Using MATLAB, calculate the cooling water flow rate required to maintain a heat rate of 150 kW.
(b) Assuming that UA is independent of flow rate, calculate and plot the water flow rate required to provide heat rates over the range from 130 to 160 kW. Comment on the validity of your assumption.
