Review the upper reservoir in the daytime


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Q: The pump-turbine system in Fig draws water from the upper reservoir in the daytime to produce power for a city. At night, it pumps water from lower to upper reservoirs to restore the situation. For a design flow rate of 15,000 gal/ min in either direction, the friction head loss is 17 ft. Estimate the power in kW

(a) extracted by the turbine and

(b) delivered by the pump.

2007_Pump turbine system.jpg

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Mechanical Engineering: Review the upper reservoir in the daytime
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