Air / fuel ratio calculator for natural gas and hydrogen firing. Computes stoichiometric and excess-air airflow, forecasted stack O₂ (dry basis), and heat input (MMBTU/h) in real time.
Stoichiometric AFR = 9.52 vol/vol
Stoich. Air
—
scfh
Air w/ Excess
—
scfh
Actual AFR
—
vol/vol
O₂ in Flue Gas
—
dry basis (%)
Heat Input
—
MMBTU/h
Air Composition
Read the related post: Independent Fuel Air Ratio Protection in BMS →