An oil pump is drawing 44 kW of electric power while
Chapter 2, Problem 74P(choose chapter or problem)
An oil pump is drawing \(44 \mathrm{~kW}\) of electric power while pumping oil with \(\rho=860 \mathrm{~kg} / \mathrm{m}^{3}\) at a rate of \(0.1 \mathrm{~m}^{3} / \mathrm{s}\). The inlet and outlet diameters of the pipe are \(8 \mathrm{~cm}\) and \(12 \mathrm{~cm}\), respectively. If the pressure rise of oil in the pump is measured to be \(500 \mathrm{kPa}\) and the motor efficiency is 90 percent, determine the mechanical efficiency of the pump
FIGURE P2–74
Equation Transcription:
Text Transcription:
44 kW
rho=860 kg/m^3
0.1 m3/s
8 cm
12 cm
500 kPa
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