Comparison of the effect of different external electrodes on discharge plasma-assisted diffusion flame stabilization
作者机构:Space Engineering UniversityBeijing 101416People’s Republic of China
出 版 物:《Plasma Science and Technology》 (等离子体科学和技术(英文版))
年 卷 期:2024年第26卷第10期
页 面:123-132页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金:supported by Beijing Natural Science Foundation(No.3222062) National Natural Science Foundation of China(No.12102482)
主 题:flame stabilization alternating current driven dielectric barrier discharge plasma injector plasma-assisted combustion external electrode
摘 要:To optimize the design of plasma injectors,the influence of different external electrodes on plasma-assisted flame stabilization was assessed by using a nonequilibrium plasma injector flame control *** electrical characteristics of the injector,flame structure parameters,flame intensity,discharge power,and cost-to-effectiveness ratio under different external electrodes(four mesh electrodes and one copper foil electrode)were analyzed using electrical and optical *** results show that reducing the mesh size of the external electrode leads to a decrease in breakdown *** with a ceramic dielectric barrier-based injector,an injector with a quartz dielectric barrier produces a higher breakdown voltage under the same *** the same actuation voltage,the discharge current increases as the mesh size of the external electrode decreases,and combustion is enhanced by the discharge plasma;therefore,it is better to adopt a smaller mesh hole size to realize good flame stabilization under a lower actuation ***,under the studied working conditions,reducing the mesh hole size of the external electrode increases the cost-to-effectiveness ratio of plasma injector-based flame ***,considering the cost-to-effectiveness ratio and the weight of the injector,an external electrode with a larger mesh hole size should be chosen,which contradicts the above rule.