Handbook vs general balance?

General balance uses atom stoichiometry and enthalpy iteration — the default path for screening. Handbook restore follows Mei Chi 1979 formulas and digitized curves for verification against the original worked examples.

Is this a CFD or emissions compliance tool?

No. It is a preliminary heat-balance / flue-gas calculator for engineering education and scheme design, not CFD, not GB emission factors, and not a substitute for licensed furnace design.

Fuel Combustion Calculator — Solid/Liquid/Gas Flue Gas & Temperature

Fuel combustion and flue-gas screening

Compute lower heating value, air demand, flue-gas volume and composition, density, and combustion temperature for solid, liquid, or gaseous fuels. The default General stoichiometric balance methodology uses atom balance and enthalpy iteration for screening; Mei Chi 1979 handbook restore reproduces worked examples for verification.

Model assumptions

Handbook mode uses dry air (no humidity) unless you enable moisture in a future revision; examples match the spreadsheet.
SO₂ volume uses coefficient 0.007 per handbook errata, not the misprinted older value.
Solid presets are typical compositions for screening — not standard endorsements.

References (provenance only)

Mei Chi et al., Reference Materials for Heavy Non-ferrous Metallurgical Furnace Design (1979), pp. 1–19 — worked examples only.

This tool does not encode inputs in the URL; share the page link only.

Frequently asked questions

Handbook vs general balance?: General balance uses atom stoichiometry and enthalpy iteration — the default path for screening. Handbook restore follows Mei Chi 1979 formulas and digitized curves for verification against the original worked examples.
Is this a CFD or emissions compliance tool?: No. It is a preliminary heat-balance / flue-gas calculator for engineering education and scheme design, not CFD, not GB emission factors, and not a substitute for licensed furnace design.

Extended copy on this page (headings, assumptions, references, FAQs) may be drafted or localized with AI assistance; engineering judgment and governing codes still apply. Numerical models run locally in your browser as implemented. For contract-critical work, cite primary standards and qualified review.