Engine Air/Fuel Ratio
Calculate the air/fuel ratio (AFR) and equivalence ratio for natural gas compressor engines. Determine whether the engine is running lean, rich, or at stoichiometric conditions.
Fuel Configuration
scfm
lbm/scf
-
Cylinder & Engine Data
ft³
RPM
-
Air Manifold Conditions
psig
°F
psia
📚 Learn the Theory
Stoichiometric combustion, equivalence ratio, lean-burn operation, emissions control strategies, and fuel composition effects.