中国物理B ›› 2024, Vol. 33 ›› Issue (12): 125204-125204.doi: 10.1088/1674-1056/ad8070
Differences in the acoustic characteristics of DC bias alternating arcs in argon, helium, and nitrogen
Yutai Li(李雨泰)1,3,†, Qinghao Wen(文清皓)1, Yangyang Fu(付洋洋)3, Xiaobing Zou(邹晓兵)3, Handong Li(黎晗东)4, Zhigang Liu(刘志刚)5, Haiyun Luo(罗海云)3, Dun Qian(钱盾)6, Zhe Chen(陈喆)2,3,‡, and Xinxin Wang(王新新)3
- 1 Xuefeng Mountain Energy Equipment Safety National Observation and Research Station, Chongqing University, Chongqing 400044, China;
2 China Huaneng Group Co., Ltd., Beijing 100031, China;
3 Department of Electrical Engineering, Tsinghua University, Beijing 100084, China;
4 China Three Gorges Renewables (Group) Co., Ltd., Beijing 101199, China;
5 School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
6 Electric Power Research Institute, State Grid Zhejiang Electric Power Co., Ltd., Hangzhou 310014, China
Differences in the acoustic characteristics of DC bias alternating arcs in argon, helium, and nitrogen
Yutai Li(李雨泰)1,3,†, Qinghao Wen(文清皓)1, Yangyang Fu(付洋洋)3, Xiaobing Zou(邹晓兵)3, Handong Li(黎晗东)4, Zhigang Liu(刘志刚)5, Haiyun Luo(罗海云)3, Dun Qian(钱盾)6, Zhe Chen(陈喆)2,3,‡, and Xinxin Wang(王新新)3
- 1 Xuefeng Mountain Energy Equipment Safety National Observation and Research Station, Chongqing University, Chongqing 400044, China;
2 China Huaneng Group Co., Ltd., Beijing 100031, China;
3 Department of Electrical Engineering, Tsinghua University, Beijing 100084, China;
4 China Three Gorges Renewables (Group) Co., Ltd., Beijing 101199, China;
5 School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China;
6 Electric Power Research Institute, State Grid Zhejiang Electric Power Co., Ltd., Hangzhou 310014, China
摘要： The acoustic effects of gas discharge plasma have received much attention. Previous studies have shown that cold plasma and thermal plasma have different principles of sound generation. In this paper, the differences in the acoustic characteristics of DC bias alternating arc plasma (thermal plasma) in different gas environments (argon, helium, and nitrogen) are investigated by combining experiments and simulations. Many processes in industrial machining involve this arc plasma. It was found that the acoustic characteristics of the arcs of these three gases are significantly different. The two key parameters, electrical and thermal conductivity of the gas, determine the acoustic characteristics of the arc by influencing the electric power of the arc and the heat dissipation through the anode. At the same drive current, the nitrogen arc has the largest voltage drop and the helium arc has the highest electroacoustic conversion efficiency. This results in the acoustic pressure amplitude being helium, nitrogen, and argon in descending order. The research contributes to a deeper understanding of the vocalization mechanism of arc plasma and provides theoretical guidance on gas selection for arc acoustic wave applications.
中图分类号: (Arcs; sparks; lightning; atmospheric electricity)
- 52.80.Mg