Pump efficiency means the ratio of the effective power and shaft power of the pump. ETA =pe/p
Pump power usually refers to the input power, that is, the original motivation to the pump shaft power, it is also known as the shaft power, with P said.
The effective power is the product of the pump head and mass flow and gravity acceleration.
Pe= p g QH (W)? Pe= qh/1000 (kw) or gamma Rho: Pump density liquid (kg/m3)
Gamma: pump delivery fluid of the severe? Gamma = P G (n/ m3) g (m/s): acceleration of gravity
The mass flow rate of qm= p q (t/h or kg/s)
Because the pump power of N (KW) = (m) * head flow (m3/s) * 1000 (severe water / 102 (Kg/m3) power conversion coefficient (ETA), the efficiency of the pump, the pump efficiency) can be obtained. If you can measure the current, voltage (can be calculated pump power), by measuring the flow, head, pump efficiency can be obtained, which is the pump efficiency calculation formula.
