Underground water is to be pumped by a 78 percent efficient S-KW submerged pump to a pool whose free surface is 30 m above the underground water level. The diameter of the pipe is 7 cm on the intake side and 5 cm on the discharge side. Determin (a) the maximum flow rate of water and (b) the pressure difference across the pump. Assume the elevation difference between th pump inlet and the outlet and the effect of the kinetic energy correction factors to be negligible. Pool 30 m

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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5-88 Underground water is to be pumped by a 78 percent efficient 5-kW submerged pump to a pool whose free surface is 30 m
above the underground water level. The diameter of the pipe is 7 cm on the intake side and 5 cm on the discharge side. Determine
(a) the maximum flow rate of water and (b) the pressure difference across the pump. Assume the elevation difference between the
pump inlet and the outlet and the effect of the kinetic energy correction factors to be negligible.
FIGURE P5-88
Pool
30 m
Transcribed Image Text:5-88 Underground water is to be pumped by a 78 percent efficient 5-kW submerged pump to a pool whose free surface is 30 m above the underground water level. The diameter of the pipe is 7 cm on the intake side and 5 cm on the discharge side. Determine (a) the maximum flow rate of water and (b) the pressure difference across the pump. Assume the elevation difference between the pump inlet and the outlet and the effect of the kinetic energy correction factors to be negligible. FIGURE P5-88 Pool 30 m
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