HomeCalculatorsEngine - Combustion Air Flow

Engine - Combustion Air Flow

Combustion air mass flow from engine power and excess-air ratio - basis for T/C + intake design.

Combustion airAir flowEngine
Air mass flow
16.92kg/s
Formula, assumptions, and limits

Stoichiometric air-fuel ratio 14.5 (HFO). 2-stroke slow-speed λ ≈ 2.0; 4-stroke λ ≈ 2.5. Tier III NOx (SCR) can run leaner λ ≈ 1.8.

Symbol legend

SymbolMeaningUnitSource
Excess-air ratio - engine type