Ignition of CH_4:O_2:Ar and n-C_4H_(10):O_2:Ar(N_2) mixtures with initial temperatures between 650-950 K by a surface pulsed discharge

摘要

Numerical study of the parameters of plasma-assisted ignition has been performed for methane/oxygen stoichiometric mixture diluted by 76 % of Ar at P=15 bar and T=400-960 K. The dependence of the induction time vs discharge deposited energy per molecule was calculated and appeared very sharp. The energy necessary for significant decrease of the induction time was found relatively low. That demonstrates the advantage for ignition application of the discharge with spatially distributed and relatively low deposited energy per molecule before the discharge with high energy per molecule but released in the point.