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.
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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