激光与光电子学进展, 2018, 55 (3): 030010, 网络出版: 2018-09-10
激光诱导等离子体点火方法研究进展 下载: 1033次
Advances in Methods of Laser-Induced Plasma Ignition
激光光学 激光诱导等离子体点火 激光烧蚀 预电离 重复频率脉冲激光 laser optics laser-induced plasma ignition laser ablation pre-ionization repetitive frequency pulse laser
摘要
激光诱导等离子体点火(LIPI)具有点火位置可调、点火延迟时间短、无侵入式结构等优点,有取代电火花点火的潜力。从火焰核形成与发展的角度介绍了LIPI的基本物理过程,分析了点火过程中的能量沉积和转化。在现有研究的基础上,对包括激光烧蚀等离子体点火、多点激光等离子体点火、预电离辅助激光等离子体点火和重复频率脉冲激光等离子体点火的性能进行了评价,并分析了每种方法的优缺点。指出了当前激光等离子体点火系统存在的问题,包括点火机理不完善、对非预混燃烧系统的点火特性研究不足、最小点火能量高等,并提出了下一步的研究方向和建议。
Abstract
Laser-induced plasma ignition (LIPI) has the potential to replace the spark plug ignition with the advantages of adjustable ignition position, short ignition delay time, non-invasive structure, and so on. We introduce the basic physical process of LIPI from the perspective of the generation and development of the flame kernel, and analyze the deposition and transformation of energy in ignition process. Based on the existing research, we evaluate the ignition performances of laser ablation plasma ignition, multi-point laser plasma ignition, pre-ionization laser plasma ignition and repetitive frequency pulse laser plasma ignition, and summarize the advantages and disadvantages of each method. The problems of the existing laser plasma ignition system are pointed out, which are imperfect ignition mechanism of the laser plasma ignition, the lack of research on the ignition characteristics of the non-premixed combustion system, and the high energy of the minimum ignition energy. Finally, we propose some suggestions on the future work.
陈梦, 窦志国, 席文雄. 激光诱导等离子体点火方法研究进展[J]. 激光与光电子学进展, 2018, 55(3): 030010. Meng Chen, Zhiguo Dou, Wenxiong Xi. Advances in Methods of Laser-Induced Plasma Ignition[J]. Laser & Optoelectronics Progress, 2018, 55(3): 030010.