In large buildings, hot water in a water tank is circulated through a loop so that the user doesn’t have to wait for all the water in long piping to drain before hot water starts coming out. a certain recirculating loop involves 40-m-long, 1.2-cm-diameter plastic (smooth) pipes with six 90° threaded smooth bends and two fully open gate valves. if the average flow velocity through the loop is 2.5 m/s, determine the required power input for the recirculating pump. take the average water temperature to be 60°c and the efficiency of the pump to be 50 percent.

answer:

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explanation:

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Explanation:

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Explanation:

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Explanation:

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