Flow process calculators

Steady-flow energy equation · Turbine

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Inputs
Required fields marked with *.
3 missing
kJ/kg
From steam-table interpolation at state 1.
kJ/kg
From steam-table interpolation at state 2.
kg/s
m/s
Leave blank to assume 0.
m/s
Leave blank to assume 0.
—
Leave blank for ideal turbine.
Schematic
Adiabatic turbine — enthalpy drop → shaft work.
1 2 h₁ = — C₁ = 0 h₂ = — C₂ = 0 CONTROL VOLUME Ẇ₁₂ Q̇₁₂ = 0
Equation
Q̇₁₂ − Ẇ₁₂ = ṁ [(h₂ − h₁) + (C₂² − C₁²)/2 + g(z₂ − z₁)]
For an adiabatic turbine Q̇ = 0 and Δz ≈ 0.