HRSG Thermal Performance — online
Know what your HRSG should be making, what it is making, and what the difference costs.
Yellow cells are inputs; orange cells are choices; blue cells choose the unit. Select or hover over an input to see its help in the box below the toolbar. The sheet is the same as the Excel tool (USD 49) — the Guide, method and references are in the Excel file.
What this hrsg thermal performance calculator does
Heat recovery steam generator performance behind a gas turbine, with or without duct firing: steam at one or two pressure levels, stack temperature, heat balance, pinch and approach checks and the value of lost steam.
- Gas turbine exhaust. From a built-in gas library or your own flue gas analysis; optional supplementary firing.
- One or two pressure levels. HP steam with optional superheat and LP saturated steam, with feedwater, blowdown, pinch and approach for each level.
- Heat balance. Duty of every section, stack temperature, effectiveness and closure shown as a percentage.
- Pinch and approach checks. Each section checked against a typical minimum, with a warning when it falls short.
- Design versus measured. Guarantee against test values, and the yearly value of the steam you are losing.
- What-if. Gain from a lower stack or feedwater temperature, with an acid dew-point warning.
How it was checked
Every result and message cell of the online tool was compared with the Excel workbook recalculated independently, at the default inputs and at four sets of randomly changed inputs, with the displayed text identical. The method and sources are those of the Excel tool and its Guide.
Related
- HRSG Thermal Performance Excel tool — USD 49, keep the workbook, its Guide and the report sheet.
- All online tools
Questions
Is the hrsg thermal performance calculator free?
You can enter and check all your data free. The full results, findings and printable sheet are unlocked with a 3-run pack (USD 9), a monthly subscription to all online tools (USD 15) or a yearly one (USD 99).
Are the results the same as the Excel tool?
Yes. The online tool runs the formulas of the HRSG Thermal Performance Excel workbook and was checked cell by cell against the Excel file.