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

doi:10.1088/1674-1056/22/6/064701

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.

Keywords: volt-ampere plasma length melting anode plasma arc fly ash

Received: 20 September 2012
Revised: 30 November 2012
Accepted manuscript online:

PACS:	47.65.-d	(Magnetohydrodynamics and electrohydrodynamics)
	47.75.+f	(Relativistic fluid dynamics)
	52.25.Dg	(Plasma kinetic equations)
	52.25.Fi	(Transport properties)

Fund: 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).

Corresponding Authors: Zhao Peng
E-mail: pzhao@ipp.ac.cn

Cite this article:

Zhao Peng (赵鹏), Ni Guo-Hua (倪国华), Meng Yue-Dng (孟月东), Nagatsu Masaaki (永津雅章) Volt-ampere characteristics of a nitrogen DC plasma arc with anode melting 2013 Chin. Phys. B 22 064701

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

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