Mechanical Efficiency of Pump or Fan Examples, Formula and Calculator

Power Transferred From the Motor to the Shaft (P)
Power Lost in the Transmission (P_l)
Mechanical Efficieny (η_m)

Step by Step
Power Transferred From the Motor to the Shaft (P) =

Power Lost in the Transmission (P_l) =

Formula =

Formula Values =

Mechanical Efficieny (η_m) =

Formula of Mechanical Efficiency of Pump or Fan

ηm = (P – Pl) / P

Where,
ηm = Mechanical Efficiency of Pump or Fan

P = Power Transferred from the Motor to the Shaft
Pl = Power Lost in the Transmission

Example of Mechanical Efficiency of Pump or Fan Examples, Formula and Calculator – Example 1

Power Transferred From the Motor to the Shaft (P) = 24

Power Lost in the Transmission (P_l) = 20

find Mechanical Efficieny (η_m) = ?

Solution :

Mechanical Efficieny (η_m) = (24-20)/24

Mechanical Efficieny (η_m) = 0.1666

Example of Mechanical Efficiency of Pump or Fan Examples, Formula and Calculator – Example 2

Power Transferred From the Motor to the Shaft (P) = 44

Power Lost in the Transmission (P_l) = 40

find Mechanical Efficieny (η_m) = ?

Solution :

Mechanical Efficieny (η_m) = (44-40)/44

Mechanical Efficieny (η_m) = 0.09090