Plasma Discharge Process in a Pulsed Diaphragm Discharge System

DUAN Jianjin (段剑金); HU Jue (胡觉); ZHANG Chao (张超); WEN Yuanbin (温元斌); MENG Yuedong (孟月东); ZHANG Chengxu (张呈旭)

doi:10.1088/1009-0630/16/12/05

Plasma Science and Technology > 2014 > 16(12): 1106-1110. > DOI: 10.1088/1009-0630/16/12/05

DUAN Jianjin (段剑金), HU Jue (胡觉), ZHANG Chao (张超), WEN Yuanbin (温元斌), MENG Yuedong (孟月东), ZHANG Chengxu (张呈旭). Plasma Discharge Process in a Pulsed Diaphragm Discharge System[J]. Plasma Science and Technology, 2014, 16(12): 1106-1110. DOI: 10.1088/1009-0630/16/12/05

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Plasma Discharge Process in a Pulsed Diaphragm Discharge System

1 School of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China 2 Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China

Funds: supported by National Natural Science Foundation of China (Nos. 11205202, 21203204 and 11175214) and Natural Science Foun- dation of Anhui Province, China (No. 1308085QA09)

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Received Date: April 15, 2014

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Abstract

Abstract

As one of the most important steps in wastewater treatment, limited study on plasma discharge process is a key challenge in the development of plasma applications. In this study, we focus on the plasma discharge process of a pulsed diaphragm discharge system. According to the analysis, the pulsed diaphragm discharge proceeds in seven stages: (1) Joule heating and heat exchange stage; (2) nucleated site formation; (3) plasma generation (initiation of the breakdown stage); (4) avalanche growth and plasma expansion; (5) plasma contraction; (6) termination of the plasma discharge; and (7) heat exchange stage. From this analysis, a critical voltage criterion for breakdown is obtained. We anticipate this finding will provide guidance for a better application of plasma discharges, especially diaphragm plasma discharges.
- pulsed diaphragm discharge system,
- plasma discharge process,
- breakdown voltage,
- resistance,
- bubble mechanism

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References (19)

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