| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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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 |
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Abstract 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.
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Received: 19 July 2024
Revised: 25 September 2024
Accepted manuscript online: 27 September 2024
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PACS:
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52.80.Mg
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(Arcs; sparks; lightning; atmospheric electricity)
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52.80.Tn
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(Other gas discharges)
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52.25.Kn
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(Thermodynamics of plasmas)
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52.77.Fv
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(High-pressure, high-current plasmas)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 51877118 and 52077117). |
Corresponding Authors:
Yutai Li, Zhe Chen
E-mail: liyt@cqu.edu.cn;287195465@qq.com
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Cite this article:
Yutai Li(李雨泰), Qinghao Wen(文清皓), Yangyang Fu(付洋洋), Xiaobing Zou(邹晓兵), Handong Li(黎晗东), Zhigang Liu(刘志刚), Haiyun Luo(罗海云), Dun Qian(钱盾), Zhe Chen(陈喆), and Xinxin Wang(王新新) Differences in the acoustic characteristics of DC bias alternating arcs in argon, helium, and nitrogen 2024 Chin. Phys. B 33 125204
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