The pump-turbine system in the figure 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. Water at 20°C Pump turtinc Z, = 150 f = Z, 25 f
The pump-turbine system in the figure 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. Water at 20°C Pump turtinc Z, = 150 f = Z, 25 f
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The pump-turbine system in the figure
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.
Water at 20°C
Pump
turtinc
Z, = 150 f
=
Z, 25 f
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