general

Specific Work

Computes specific work for a pump or fan as (P1 - P2) / ρ and for a turbine as (P2 - P1) / ρ, where P1 is primary pressure, P2 is secondary pressure, and ρ is fluid density. Results are in Nm/kg (= J/kg).

Inputs

Primary Pressure(N/m²)

Inlet pressure in newtons per square metre (pascals)

Secondary Pressure(N/m²)

Outlet pressure in newtons per square metre (pascals)

Density(kg/m³)

Fluid density in kg/m³ (source labels unit as kg/m² — that is a source bug)

Results

⚠Density must be greater than zero

Specific Work of Pump or Fan—Nm/kgSpecific work input for a pump or fan in newton-metres per kilogram

Specific Work of Turbine—Nm/kgSpecific work output for a turbine in newton-metres per kilogram