TRANSFER the input mechanical energy of a motor or of an engine (Kinetic energy) into PRESSURE energy. Centrifugal pump is type of dynamic pressure pump. The efficiency of pump is given as, η = \(\frac{Water~Power}{Shaft~Power}\)where, Water power = ρgQH and Shaft Power = rating of pumpCalculation:Given: \(Q = 0.0125\frac{{{m^3}}}{s}\), Shaft Power = 5 kW = 5000 W, H = 30 m, ρ = 1000 kg/m3∴ \(η = \frac{{ρ \times g \times Q \times H}}{{{P_S}}}\)\(η = \frac{{1000 \times 9.81 \times 0.0125 \times 30}}{{5000}}\)\(η = 0.73575 \approx 0.74\)\(η = 74\%\)TurbinePumpHydraulic efficiency., \({\eta _{hy}} = \frac{{Runner~Power}}{{Water~Power}} = \frac{{\rho Q({V_{w1}}{u_1} + {V_{W2}}{u_2})}}{{\rho QgH}}\)MANOMETRIC efficiency., \({\eta _{mano}} = \frac{{Water~Power}}{{Impeller~power}} = \frac{{\rho Qg{H_m}}}{{\rho Q({V_{w2}} \times {u_2})}}\)Mechanical efficiency., \({\eta _{mech}} = \frac{{Shaft~Power}}{{Runner~Power}} = \frac{{ShaftPower}}{{\rho Q({V_{w1}}{u_1} + {V_{w2}}{u_2})}}\)Mechanical efficiency., \({\eta _{mech}} = \frac{{Impeller~Power}}{{Shaft~Power}} = \frac{{{V_{w2}} \times {u_2}}}{{ShaftPower}}\)Overall efficiency., \({\eta _o} = {\eta _{mano}} \times {\eta _{mech}}\) Overall efficiency., \({\eta _o} = {\eta _{mano}} \times {\eta _{mech}}\)