Transient plasma ignition of quiescent and flowing air/fuel mixtures
Transient plasma ignition of quiescent and flowing air/fuel mixtures
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DOI：
10.1109/tps.2005.845251
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发表时间：
2004-07
影响因子：
1.5
通讯作者：
Fei Wang;Jian-bang Liu;J. Sinibaldi;C. Brophy;A. Kuthi;Chunqi Jiang;P. Ronney;Martin A. Gundersen
中科院分区：
文献类型：
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作者：
Fei Wang;Jian-bang Liu;J. Sinibaldi;C. Brophy;A. Kuthi;Chunqi Jiang;P. Ronney;Martin A. Gundersen
本文研究了大气压脉冲点火放电形成阶段的瞬态等离子体对静止和流动的燃料-空气混合物的点火。在脉冲爆震发动机（PDE）中研究了甲烷-空气混合气的静态点火和流动点火。瞬态等离子体主要由流光，这存在于约50 ns之前形成一个平衡的电子能量分布。点火延迟和点火压力上升时间的显着减少的结果，获得与传统的火花点火方法（100-800 mJ）大致相当的能量成本。在静态混合物中，点火延迟通常减少3倍，在流动PDE（0.35 kg/s）中减少>4倍，并且获得了性能的其他增强。这些结果，沿着与伪火花为基础的脉冲发生器，是为这些应用开发的讨论，将被提交。
Transient plasmas that exist during the formative phase of a pulse-ignited atmospheric pressure discharge were studied for application to ignition of quiescent and flowing fuel-air mixtures. Quiescent methane-air mixture ignition was studied as a function of equivalence ratio, and flowing ethane-air mixture was studied in a pulse detonation engine (PDE). The transient plasma was primarily comprised of streamers, which exist during approximately 50 ns prior to the formation of an equilibrated electron energy distribution. Results of significant reduction in delay to ignition and ignition pressure rise time were obtained with energy costs roughly comparable to traditional spark ignition methods (100-800 mJ). Reduction in delay to ignition by factors of typically 3 in quiescent mixes to >4 in a flowing PDE (0.35 kg/s), and other enhancements in performance were obtained. These results, along with a discussion of a pseudospark-based pulse generator that was developed for these applications, will be presented.