= 0.027 kW
600 gpm of water is pumped a head of 110 ft. The efficiency ofthe pump i s 60% (0.6) and the specific gravity of water is 1. The pump shaft power can be calculated as
Ph(kW) = (60 gpm) (110 ft) (1) / ((3960) (0.6))
= 27.8 hp
The shaft power - the power required transferred from the motor to the shaft of the pump - depends on the efficiency of the pump and can be calculated as
Ps(kW) = Ph(kW) / η (3)
Ps(kW) = shaft power (kW)
η = pump efficiency
The calculator below can used to calculate the hydraulic and shaft power of a pump:
The calculator below can used to calculate the hydraulic and shaft power of a pump using Imperial units:
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