纳秒脉冲放电等离子体助燃技术研究进展

发布时间：2018-06-18 08:50

本文选题：等离子体辅助燃烧 + 纳秒脉冲放电　；参考：《高电压技术》2017年06期

【摘要】：纳秒脉冲放电等离子体辅助燃烧技术应用前景广阔,既可用于发动机点火和火焰稳定,又可降低废气排放、提高燃烧效率。近十年以来,通过设计各类巧妙的等离子体助燃实验,借助先进的光学诊断技术和数值仿真手段,研究人员在纳秒脉冲等离子体与燃烧相互作用机制、各类参数对助燃的影响以及在发动机燃烧室中的应用等方面都取得了不少重大研究成果。鉴于此,在介绍发展历史和技术需求的基础上,分别从助燃原理、实验与应用研究、诊断与仿真技术这3方面对纳秒脉冲等离子体助燃技术进行了综述。其中,根据最核心参数气体压力的大小进行分类,分别对常低压条件和中高压条件下一些具有代表性的实验研究进行了详细分析;并对包括超贫、低温、无焰燃烧及燃烧不稳定控制在内的一批新兴等离子体助燃技术应用方向进行了评述。最后,从纳秒脉冲等离子体助燃技术实用化角度考虑,指出了研究面临的挑战和未来发展的方向。
[Abstract]:The nanosecond pulse discharge plasma assisted combustion technology has a wide application prospect. It can be used in ignition and flame stabilization of engine, reduce exhaust gas emissions and improve combustion efficiency. In the past decade, by designing various kinds of ingenious plasma combustion support experiments, with the help of advanced optical diagnostic technology and numerical simulation, researchers have worked out the mechanism of interaction between nanosecond pulsed plasma and combustion. The influence of various parameters on combustion support and its application in engine combustor have obtained a lot of important research results. In view of this, on the basis of introducing the development history and technical requirements, this paper summarizes the nanosecond pulse plasma combustion supporting technology from three aspects: combustion principle, experimental and applied research, diagnosis and simulation technology. Among them, according to the magnitude of the most core parameter gas pressure, some representative experimental studies under the condition of constant low pressure and medium and high pressure are analyzed in detail, and the experimental results include super poor, low temperature, high temperature, low temperature and low temperature. The applications of a number of new plasma combustion support technologies, including flame free combustion and combustion instability control, are reviewed. Finally, from the point of view of the practical application of nanosecond pulsed plasma combustion technology, the challenges and future development of the research are pointed out.
【作者单位】：装备学院航天装备系;
【基金】：国家自然科学基金(91441123) 高超声速冲压发动机技术重点实验室开放基金(CG-201405118)~~
【分类号】：O53

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