Experimental study and theoretical analysis on the effect of electric field on gas explosion and its propagation

• Published in: Journal of coal science & engineering, China Vol. 17; no. 2; pp. 147 - 151
• Main Authors: Ye, Qing, Lin, Bai-quan, Jian, Cong-guang, Jia, Zhen-zhen
• Format: Journal Article
• Language: English
• Published: Heidelberg China Coal Society 01.06.2011
• Subjects: Earth and Environmental Science; Earth Sciences; Geochemistry; Geology; Geophysics/Geodesy; Geotechnical Engineering & Applied Earth Sciences; Mechanical Engineering; 反应过程; 实验; 火焰传播速度; 爆炸压力; 爆炸反应; 爆炸强度; 瓦斯爆炸事故; 电场强度; flame propagation; reaction process; electric field; gas explosion; explosion wave pressure
• ISSN: 1006-9097; 1866-6566
• DOI: 10.1007/s12404-011-0208-z

The effect of the electric field with different intensity on explosion wave pressure and flame propagation velocity of gas explosion was experimentally studied, and the effect of electric field on gas explosion and its propagation was theoretically analyzed from heat transportation, mass transportation, and reaction process of gas explosion. The results show that the electric field can affect gas explosion by enhancing explosion intensity and explosion pressure, thus increasing flame velocity. The electric field can offer energy to the gas explosion reaction; the effect of the electric field on gas explosion increases with the increase of electric field intensity. The electric field can increase mass transfer action, heat transfer action, convection effects, diffusion coefficient, and the reaction system entropy, which make the turbulence of gas explosion in electric field increase; therefore, the electric field can improve flame combustion velocity and flame propagation velocity, release more energy, increase shock wave energy, and then promote the gas explosion and its propagation.