Numerical study on the spark ignition characteristics of a methane–air mixture using detailed chemical kinetics: Effect of equivalence ratio, electrode gap distance, and electrode radius on MIE, quenching distance, and ignition delay
作者： Jilin Han , Hiroshi Yamashita , Naoki Hayashi
DOI: 10.1016/J.COMBUSTFLAME.2010.02.021
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摘要: Abstract The minimum ignition energy (MIE) is an important property for designing safety standards and understanding the process of combustible mixtures. Even though formation flame kernels in quiescent methane–air mixtures has been simulated numerically, mechanism never satisfactorily explained. This study investigated spark through a numerical analysis using detailed chemical kinetics consisting 53 species 325 elementary reactions while considering heat loss to electrode. simulation was used investigate quenching distance effects on MIE electrode size, gap distance, duration, equivalence ratio. effect ratio delay time also examined. results showed same trend as previous experimental results.
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