中国物理B ›› 2013, Vol. 22 ›› Issue (6): 64701-064701.doi: 10.1088/1674-1056/22/6/064701

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Volt-ampere characteristics of a nitrogen DC plasma arc with anode melting

赵鹏a b, 倪国华a, 孟月东a, 永津雅章b   

  1. a Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China;
    b Graduate School of Science and Technology, Shizuoka University, 3-5-1, Johoku, Nakaku, Hamamatsu, 432-8561, Japan
  • 收稿日期:2012-09-20 修回日期:2012-11-30 出版日期:2013-05-01 发布日期:2013-05-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 21171169) and the Knowledge Innovation Project of the Chinese Academy of Sciences (Grant No. O45CF3A211).

Volt-ampere characteristics of a nitrogen DC plasma arc with anode melting

Zhao Peng (赵鹏)a b, Ni Guo-Hua (倪国华)a, Meng Yue-Dng (孟月东)a, Nagatsu Masaaki (永津雅章)b   

  1. a Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China;
    b Graduate School of Science and Technology, Shizuoka University, 3-5-1, Johoku, Nakaku, Hamamatsu, 432-8561, Japan
  • Received:2012-09-20 Revised:2012-11-30 Online:2013-05-01 Published:2013-05-01
  • Contact: Zhao Peng E-mail:pzhao@ipp.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 21171169) and the Knowledge Innovation Project of the Chinese Academy of Sciences (Grant No. O45CF3A211).

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摘要： The characteristics of nitrogen arc using graphite cathode and melting anode in pilot-scale plasma furnace are investigated. The voltage is examined as a function of current and apparent plasma length. The voltage increases non-linearly with the increase of apparent plasma length, with the current fixed. The experimental data so obtained are compared with the predictions of the Bowman model for the electric arc, and with numerical simulations as well. The level of agreement between the experimental data at the melting anode and the numerical predictions confirms the suitability of the proposed the Bowman model. These characteristics are relevant to the engineering design and evaluation of DC plasma furnace and reactor for the treatment of hazardous fly ash waste.

关键词: volt-ampere, plasma length, melting anode plasma arc, fly ash

Abstract: The characteristics of nitrogen arc using graphite cathode and melting anode in pilot-scale plasma furnace are investigated. The voltage is examined as a function of current and apparent plasma length. The voltage increases non-linearly with the increase of apparent plasma length, with the current fixed. The experimental data so obtained are compared with the predictions of the Bowman model for the electric arc, and with numerical simulations as well. The level of agreement between the experimental data at the melting anode and the numerical predictions confirms the suitability of the proposed the Bowman model. These characteristics are relevant to the engineering design and evaluation of DC plasma furnace and reactor for the treatment of hazardous fly ash waste.

Key words: volt-ampere, plasma length, melting anode plasma arc, fly ash

中图分类号:  (Magnetohydrodynamics and electrohydrodynamics)

  • 47.65.-d
47.75.+f (Relativistic fluid dynamics) 52.25.Dg (Plasma kinetic equations) 52.25.Fi (Transport properties)