Engineering calculator · Updated 17 September 2026
Steam Turbine Power Calculator — Enthalpy Drop, Efficiency & Generator Output
Calculate ideal fluid power, shaft power and generator output from steam mass flow, inlet/outlet enthalpy, turbine efficiency and generator efficiency.
Inputs
Live results
- Fluid enthalpy power 1,666.6667 kW
- Turbine shaft power 1,333.3333 kW
- Generator output 1,280 kW
- Generator output 1.28 MW
- Combined conversion efficiency 76.8%
Formula
Pgen=ṁ(hi−ho)ηtηg.
Worked example
10 t/h with 600 kJ/kg enthalpy drop, 80% turbine and 96% generator efficiency gives about 1.28 MW.
Assumptions and limits
- Enthalpies must come from validated steam-property data for the actual states.
- Efficiency inputs must match whether outlet enthalpy is actual or isentropic.
FAQs
What does this Steam Turbine Power Calculator calculate?
Calculate ideal fluid power, shaft power and generator output from steam mass flow, inlet/outlet enthalpy, turbine efficiency and generator efficiency.
Is this suitable for final equipment selection?
Use the result for engineering screening and operating diagnostics. Confirm final selections against measured data, OEM curves and applicable codes.
Why are the assumptions explicit?
Plant results depend on reference conditions, pressure basis, efficiencies and measurement locations. Showing assumptions keeps the calculation auditable.