内燃机工程2025，Vol.46Issue(3)：48-54,68,8.DOI:10.13949/j.cnki.nrjgc.2025.03.006
纳秒脉冲等离子体电源设计及氨气点燃试验
Design of a Nanosecond Pulsed Plasma Power Supply and Ammonia Ignition Experiment
摘要
Abstract
To address the challenges of narrow ignition limits and slow laminar flame propagation speed in ammonia combustion,a high-voltage nanosecond pulsed plasma power supply was developed to achieve sustained discharge and ammonia ignition under high-pressure conditions.A dielectric barrier discharge(DBD)spark plug directly applicable to engine cylinders was designed and fabricated herein.Experimental results show that the power supply successfully achieves ammonia ignition in a 0.7 MPa environment.Comparative studies with conventional spark plugs reveal that the DBD spark plug significantly reduces ignition delay time and peak pressure arrival time,while achieving a higher peak combustion pressure.At an initial pressure of 0.7 MPa and an equivalence ratio of 0.9,the time to reach peak combustion pressure is shortened by 19.7%,and the peak combustion pressure is increased by 12.18%.关键词
氨气/纳秒脉冲放电/动力机械工程/等离子体Key words
ammonia/nanosecond pulse discharge/power mechanical engineering/plasma分类
能源与动力引用本文复制引用
荣伟新,胡勇,于文斌,赵霏阳..纳秒脉冲等离子体电源设计及氨气点燃试验[J].内燃机工程,2025,46(3):48-54,68,8.基金项目
国家自然科学基金项目(52406145) （52406145）
山东省自然科学青年基金项目(ZR2022QE268)National Natural Science Foundation of China(52406145) （ZR2022QE268）
Shandong Province Natural Science Youth Fund(ZR2022QE268) （ZR2022QE268）
