How much heat a hot gas or flue gas can give back — as steam or to heat another stream — with fuel saved, CO₂ avoided and payback.
USD 49
| Format | Excel workbook (.xlsx), no macros |
| Version | v1.0 |
| Works in | Excel 2010 or later, Windows and Mac |
| Units | SI, US and British, mixed freely |
| Includes | Guide tab with method and references, calculator, print-ready report |
| Checked against | Flue-gas steam generation and hot-water cases within 0.1 % of an independent reference calculation. |
| Free version | Try the online calculator |
Single-user licence. Team and site licences: see options. Instant download after payment; you also get updates to this major version.
What it does
Steam generation
Heat recovery steam generator with pinch and approach, blowdown, optional superheat and a stack temperature limit.
Or heat a stream
Heat a liquid or gas with minimum temperature differences at both ends; receiver flow calculated or given.
Any hot stream
Flue gas, process gas or liquid from the fluid library, or a gas mixture.
Money and emissions
Fuel saved, cost saved per year, CO₂ avoided and simple payback.
Zone duties
Economiser, evaporator and superheater duties and a temperature–heat diagram.
Print-ready report
Inputs, results, findings and the chart on A4.
Built for engineers
- Visible formulas — nothing hidden, so you can check every step.
- Fully referenced — methods from the standard references, checked against their published worked examples.
- Safe to share — sheets are protected against accidental edits, with an open password so you can still customise.
- Built-in input checks — clear warnings for impossible inputs and values outside typical ranges.
For engineering estimates; verify against site data. Code-based methods are aligned with the publicly documented procedure; they are not a licensed reproduction or a certification.