Abstract
Nanosecond discharge was initiated by negative or positive polarity pulses 10–15 kV in amplitude in a cable, 25–30 ns FWHM, 3–5 ns rise time, in the regime of a single shot or 3 Hz repetitive frequency. Discharge parameters, namely spatial uniformity of the discharge and timeand space–resolved electric field were measured in N2:O2=4:1 mixture. Possibility to ignite the combustible mixture with the help of a surface nanosecond dielectric barrier discharge (SDBD) has been demonstrated on the example of a stoichiometric C2H6:O2 mixture at ambient initial temperature and at 1 atm pressure. Flame propagation and ignited volume as a function of time were compared experimentally for the two discharge geometries, for SDBD and pin–to–pin configurations at the same shape and amplitude of the incident pulse.
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