Computational simulation of reactive species production by methane-air DBD at high pressure and high temperature

¹ Institute of Fluid Science, Tohoku University - 2-1-1 Katahira, Aoba-ku, Sendai, Japan
² Faculty of Electrical and Computer Engineering, Kanazawa University - Kanazawa, Japan

^a takana@paris.ifs.tohoku.ac.jp

Received: 11 October 2011
Accepted: 29 November 2011

Abstract

Computational simulations of a single streamer in DBD in lean methane-air mixture at pressure of 1 and 3 atm and temperature of 300 and 500 K were conducted for plasma-enhanced chemical reactions in a closed system. The effects of surrounding pressure and temperature are characterized for reactive species production by a DBD discharge. The results show that the production characteristics of reactive species are strongly influenced by the total gas number density and the higher concentration of reactive species are produced at higher pressure and lower gas temperature for a given initial reduced electric field.