Pump Efficiency

Written by Jerry Ratzlaff on . Posted in Pump

Pump efficiency, abbreviated as n, is the ratio of total horsepower output to shaft horsepower input of the pump or power output to power input.

Pump Efficiency formula

\(\large{ n = \frac{ \rho \; G \; Q \; h }{ P } }\)

Where:

\(\large{ n }\) = pump efficiency

\(\large{ \rho }\)  (Greek symbol rho) = fluid density

\(\large{ Q }\) = flow rate

\(\large{ h }\) = head

\(\large{ P }\) = power input

\(\large{ G }\) = universal gravitational constant