) 山东大学 能源与动力工程学院, 济南 250061
收稿日期:2021-01-23出版日期:2022-01-28发布日期:2022-01-21通讯作者:程勇E-mail:cysgd@sdu.edu.cn作者简介:刘静远(1997-),男,河南省鹤壁市人,硕士生,研究方向为内燃机性能测试研究.基金资助:国家自然科学基金(51976107);北京理工大学高效低排放内燃机技术工业和信息化部重点实验室科研基地科技支撑专项计划资助项目(2017CX02015)Effect of Nanosecond Pulse Discharge Parameters on Ignition Performance
LIU Jingyuan, WANG Ning, ZHAO Qingwu, XIONG Yong, CHENG Yong() School of Energy and Power Engineering, Shandong University, Jinan 250061, China
Received:2021-01-23Online:2022-01-28Published:2022-01-21Contact:CHENG Yong E-mail:cysgd@sdu.edu.cn摘要/Abstract
摘要： 基于定容燃烧弹探究纳秒脉冲放电在不同脉冲电压、不同脉冲间隔下的放电特性,比较不同放电参数对甲烷/空气混合气点火成功率和着火延迟的影响.研究结果表明,减小脉冲间隔,可以合理利用脉冲之间的耦合作用,提高放电能量利用率;增大脉冲电压、脉冲数量和减小脉冲间隔可以扩大甲烷/空气混合气的着火界限;增大脉冲电压和减小脉冲间隔均可以有效降低着火延迟.
关键词: 纳秒脉冲放电, 脉冲电压, 脉冲间隔, 点火成功率, 着火延迟
Abstract: The discharge characteristics of nanosecond pulse discharge at different pulse voltages and different pulse intervals are investigated based on constant volume bomb. The effects of different discharge parameters on the flame success rate and ignition delay of methane/air mixture are compared. The results show that the coupling between pulses can be reasonably utilized and the utilization rate of discharge energy can be improved by decreasing the pulse interval.The ignition limit of methane/air mixture can be enlarged by increasing the pulse voltage, the pulse number, and decreasing the pulse interval. The ignition delay can be reduced by increasing the pulse voltage and decreasing the pulse interval.
Key words: nanosecond pulse discharge, pulse voltage, pulse interval, flame success rate, ignition delay
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