Effects of diluents on the ignition of premixed H2/air mixtures

A computational study is performed to investigate the effects of diluents on the ignition of premixed H2/air mixtures. The ignition processes for fuel lean, stoichiometric, and fuel rich H2/air mixed with different diluents (He, Ar, N2, and CO2) are simulated with detailed chemistry and variable thermodynamic and transport properties. The minimum ignition energies (MIE) for different diluents at different dilution ratios are obtained. It is...