# Pressure Energy

## Pressure energy in a incompressible fluid

The pressure energy in an incompressible fluid volume, like a pressurized tank with water, can be expressed as

E = dp / ρ                                (1)

where

E = energy (J/kg)

dp = pressure difference (Pa, N/m2)

ρ = density (kg/m3)

### Example - Pressure Energy in a Water Tank

The pressure on a water tank is 10 bar (106 Pa). With density of water 1000 kg/m3 the pressure energy can be calculated as

E = (106 Pa) / (1000 kg/m3)

= 1000 J/kg

## Related Topics

• Fluid Mechanics - The study of fluids - liquids and gases. Involves velocity, pressure, density and temperature as functions of space and time

## Tag Search

• en: pressure energy
• es: energía de presión
• de: Druckenergie

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