Water is pumped from a lake to a storage tank 30 m above at a rate of 75 L/s while consuming 21.8 kW of electric power, as shown in figure below. Disregarding any frictional losses in the pipes and any changes in kinetic energy, determine the overall efficiency of the pump-motor unit.

Water is pumped from a lake to a storage tank 30 m above at a rate of 75 L/s while consuming 21.8 kW of electric power, as shown in figure below. Disregarding any frictional losses in the pipes and any changes in kinetic energy, determine the overall efficiency of the pump-motor unit.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Water is pumped from a lake to a storage tank 30 m above at a rate of 75 L/s while consuming
21.8 kW of electric power, as shown in figure below. Disregarding any frictional losses in the
pipes and any changes in kinetic energy, determine the overall efficiency of the pump-motor
unit.
30 m
Pump
Storage tank

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