Temperature profiles and ionization in a laminar flame front

Chain-thermal explosion and degree of ionization of hydrogen-air flames

“…There are results of massspectrometric measurements of the absolute degree of ionization (ion concentration) in hydrogen-rich flames obtained by [3,[41][42][43][45][46][47][48] and data on the ion concentrations in flames of both rich and lean mixtures measured using electrical probes [3,13]. Results from probe measurements of the degree of ionization in combustion of a 2H 2 + O 2 + 6N 2 + 0.005CH 4 stoichiometric mixture are given in [17]. This has motivated the present investigation of the concentration limits of hydrogen content in air within which there is a marked degree of ionization in hydrogen-air flames.…”