Calcolatrice Potenza Pompa Gratuita

Calcola la potenza idraulica e all'albero di una pompa.

L/s
m
kg/m^3
%

Required Shaft Power

7.85 kW

Hydraulic Power5.89 kW

Required Shaft Power vs Flow Rate (Q)

Vedi formula →

Formula

## Pump Power Calculation The power a pump must supply depends on the flow rate, the head it must overcome, and pump efficiency. ### Formulas **Hydraulic power = rho g Q H** (useful work on the fluid) **Shaft power = rho g Q H / eta** (actual input from motor) where rho is fluid density, g = 9.81 m/s^2, Q is volumetric flow rate, H is total dynamic head, and eta is pump efficiency.

Esempio Risolto

A pump delivers 20 L/s of water against 30 m total head at 75% efficiency.

  1. 01Q = 20 L/s = 0.020 m^3/s
  2. 02Hydraulic power = 1000 x 9.81 x 0.020 x 30 = 5886 W = 5.89 kW
  3. 03Shaft power = 5.89 / 0.75 = 7.85 kW
  4. 04Select a motor of at least 7.5 kW (next standard size up).