Power Gained by Fluid from Pump or Fan

Calculate the power gained by fluid from a pump or fan using mass flow rate and specific work, or alternatively using density, volume flow rate, gravitational acceleration, and head. Multiple formulas are provided for different input scenarios.

Calculator

Inputs

Calculation Method

Mass Flow Rate (m) (kg/s)

Specific Work (w) (J/kg)

Density (ρ) (kg/m³)

Volume Flow Rate (Q) (m³/s)

Gravitational Acceleration (g) (m/s²)

Head (h) (m)

Specific Weight (γ) (N/m³)

Inlet Pressure (p₁) (Pa)

Outlet Pressure (p₂) (Pa)

Results

Power Gained by Fluid-- W

Power Gained by Fluid (kW)-- kW

Formulas Used

Method 1: P = m·w

P = power (W)
m = mass flow rate (kg/s)
w = specific work (J/kg)

Method 2: P = ρ·Q·g·h

ρ = density (kg/m³)
Q = volume flow rate (m³/s)
g = gravitational acceleration (9.81 m/s²)
h = head (m)

Method 3: P = γ·Q·h

γ = specific weight (N/m³)
Q = volume flow rate (m³/s)
h = head (m)

Method 4: P = Q·(p₂ - p₁)

Q = volume flow rate (m³/s)
p₂ = outlet pressure (Pa)
p₁ = inlet pressure (Pa)

Power Gained by Fluid from Pump or Fan | MEPKit Engineering Tools | MEPKit