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A pump is pumping water at a flow rate of Q = 125 Liter per minute...

A pump is pumping water at a flow rate of Q = 125 Liter per minute against a head of 18 meters. Assuming the mechanical efficiency of 85 %, what is the shaft power of the pump required for the pump in Watts? Assume water density at 1000 kg/m3 and gravitational acceleration g = 9.81 m/s2.

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Answer #1

Given data : Q = 125 lt/min = / 60 sec = 2.0833 *   /sec

                      Head, H = 18m , = 1000 Kg/m3 , g = 9.81 m/sec2

                      Mechanical efficiency = 85%

The Power of the Pump required is given by

=  = 432.787 Watt

Hence, Power P = 432.787 W

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