Combustion · Excess Air & Flue Gas
What comes out of the stack
Pick a fuel and set the air. See what the flue gas analyzer would read: O₂, CO₂, excess air, the full flue gas make-up, and the flame temperature. Exact combustion stoichiometry, the balance every fired heater and boiler runs on.
Fuel
Combustion air
Flue gas & combustion
Flue O₂ (dry)
–
what the analyzer reads
Excess air
–
air above stoichiometric
Flame temp
–
adiabatic (ideal)
Stoichiometric air–
Air / fuel (mass)–
CO₂ (dry)–
Fuel LHV–
Flue-gas composition (mol %)
| Component | Wet | Dry |
|---|
CO₂ (dry)
O₂ (dry)
your point
Built by Empira
This free tool comes from our operator training simulators. Each is a working model of your own unit that operators run, break and recover.
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