The radiofrequency dielectric barrier discharge in oxygen-hydrogen mixture is studied. The developed 1D model simulation shows that the input power is very high in such discharge. It allows heating the gas mixture up to 1000K for tens of microseconds. It is shown that the reactive species production is high enough to influence the ignition process. They reduce the induction period and decrease the ignition temperature. The atomic oxygen produced in the discharge initiates the ignition process. It makes the RF DBD a good candidate for the ignition of air-fuel mixtures under high pressures. It is shown that the ions current is a main part of the total discharge current and that the ions play significant role in the gas heating.
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