An oil pump is drawing 18 kW of electric power while pumping oil with density 860 kg/m³ at a rate of 0.1m³/s. The inlet and outlet diameters of the pipe are 8 cm and 11 cm, respectively. If the pressure rise of oilin the pump is measured to be 250 kPa and the motor efficiency is 95 percent, determine the mechanicalefficiency of the pump. Take the kinetic energy correction factor as 1.05.Pump8 cmD.cmΔΡ = 250 kPa18 kWMotorOil0.1 m³/sThe mechanical efficiency of the pump is%.

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awing 18 kW of electric power while pu nd outlet diameters of the pipe are 8 c easured to be 250 kPa and the motor pump. Take the kinetic energy correcti cm - 250 kPa 18 kW کے کر Motor efficiency of the pump is %.

awing 18 kW of electric power while pu nd outlet diameters of the pipe are 8 c easured to be 250 kPa and the motor pump. Take the kinetic energy correcti cm - 250 kPa 18 kW کے کر Motor efficiency of the pump is %.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

An oil pump is drawing 18 kW of electric power while pumping oil with density 860 kg/m³ at a rate of 0.1
m³/s. The inlet and outlet diameters of the pipe are 8 cm and 11 cm, respectively. If the pressure rise of oil
in the pump is measured to be 250 kPa and the motor efficiency is 95 percent, determine the mechanical
efficiency of the pump. Take the kinetic energy correction factor as 1.05.
Pump
8 cm
D.cm
ΔΡ = 250 kPa
18 kW
Motor
Oil
0.1 m³/s
The mechanical efficiency of the pump is
%.

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