Effects of non-thermal plasma on swirled premixed methane/air flames

Abstract

The effects of non-thermal plasma on swirled premixed methane/air flames have been experimentally studied by adopting a dielectric barrier discharge (DBD) technique. Lean extinction limits were extended by the non-thermal plasma-induced streamer. Flame configuration was significantly changed from regime III to regime II applying voltage and frequency. This is because the streamer interacts with positive or negative ions and electron in flame.