Plant optimization calculator · Updated 17 September 2026
Steam Turbine Heat Rate Calculator — Heat Rate, Efficiency & Steam Rate
Benchmark turbine-generator performance from thermal input, electrical output and steam flow. Returns heat rate, thermal efficiency and specific steam consumption.
Inputs
Live results
- Thermal efficiency 33.333333%
- Heat rate 10,800 kJ/kWh
- Specific steam consumption 4 kg/kWh
- Heat rejected / losses 20 MW
Formula
Heat rate=Qin/Pout; η=Pout/Qin; SSC=ṁsteam/Pout.
Worked example
30 MW thermal input and 10 MW electrical output gives 33.3% conversion efficiency.
Assumptions and limits
- Thermal input must use a consistent enthalpy/heating-value basis.
- Use simultaneous stable-period measurements.
FAQs
What does this Steam Turbine Heat Rate Calculator calculate?
Benchmark turbine-generator performance from thermal input, electrical output and steam flow. Returns heat rate, thermal efficiency and specific steam consumption.
Can I use this for a final design?
Use it for screening, diagnostics and opportunity sizing. Validate final design against measured plant data, OEM limits and applicable standards.
Why does the calculator show intermediate results?
Intermediate engineering quantities make bad inputs and unrealistic assumptions easier to spot before a decision is made.