Online calculation of centrifugal pump power

 How do you calculate the Hydraulic power, shaft power and motor power of a centrifugal pumps?

Inputs needed:

• Pump flow
• Pump suction lift and discharge head
• Fluid density
• Acceleration due to gravity
• Pump efficiency
• Motor efficiency

Hydraulic power, 

Is also called useful power or water horsepower, is the actual power imparted to the fluid by the pump. It depends on three primary parameters:

• Flow rate (Q) in m³/s

• Total head (H) in meters

• Fluid density (ρ) in kg/m³

• Acceleration due to gravity (g = 9.81 m/s²)

Phyd​=ρ×g×Q×H

Shaft Power: Is calculated as;

Pshaft​=Phyd / ηp (Pump efficiency)​​​

Motor Input Power (Electrical Power Consumption)

Pmotor​=Pshaft / ηm (Motor efficiency)

Read more>>>>Powerplant and calculations​​​

Centrifugal Pump Power Calculator

Flow (Q) in m³/sec Total Head (H) in meter Fluid Density (ρ) in kg/m³ Pump Efficiency (%) Motor Efficiency (%)