Effect of Magnetic Field on Dynamics of 5% Propane/Air Premixed Gases

Abstract

Abstract Under applying the gradient electromagnetic field of 2100Gs-3300Gs, the explosion pressure and the propagation velocity of the explosion flame of 5% propane/air premixed gases were studied experimentally. The experimental results showed that the gradient electromagnetic field suppressed the explosion overpressure and explosion flame propagation velocity. When applied the gradient electromagnetic field, the peak propane explosion pressure decreased by 26KPa and the explosion flame propagation velocity decreased by 1.54269m/s. In other words, the gradient electromagnetic field suppressed the increase of pressure shock waves and light waves. Through the numerical simulation of propane explosion reaction, it is inferred that electromagnetic field mainly inhibits propane explosion pressure and explosion flame propagation speed by affecting the reactions of • H, • O and • OH radicals.