Discharge Characteristics of DC Arc Water Plasma for Environmental Applications

LI Tianming (李天明); Sooseok CHOI; Takayuki WATANABE

doi:10.1088/1009-0630/14/12/11

Plasma Science and Technology > 2012 > 14(12): 1097-1101. > DOI: 10.1088/1009-0630/14/12/11

LI Tianming (李天明), Sooseok CHOI, Takayuki WATANABE. Discharge Characteristics of DC Arc Water Plasma for Environmental Applications[J]. Plasma Science and Technology, 2012, 14(12): 1097-1101. DOI: 10.1088/1009-0630/14/12/11

Citation:

PDF (4980 KB)

Discharge Characteristics of DC Arc Water Plasma for Environmental Applications

Department of Environmental Chemistry and Engineering, Tokyo Institute of Technology, Yokohama 226-8502, Japan

More Information

Received Date: November 02, 2011

Graphical Abstract

Abstract

Abstract

A water plasma was generated by DC arc discharge with a hafnium embedded rod- type cathode and a nozzle-type anode. The discharge characteristics were examined by changing the operation parameter of the arc current. The dynamic behavior of the arc discharge led to signi¯cant °uctuations in the arc voltage and its frequency. Analyses of the high speed image and the arc voltage waveform showed that the arc discharge was in the restrike mode and its frequency varied within several tens of kilohertz according to the operating conditions. The larger thermal plasma volume was generated by the higher °ow from the forming steam with a higher restrike frequency in the higher arc current conditions. In addition, the characteristics of the water plasma jet were investigated by means of optical emission spectroscopy to identify the abundant radicals required in an e±cient waste treatment process.
- thermal plasma,
- water plasma torch,
- arc movement,
- restrike frequency

FullText(HTML)

References (0)

[1]	Yuan YAO, Yao YANG, Ang TI, Yang SONG, Jiamin ZHANG, Yan WANG, Yao ZHANG, Haiqing LIU, Yinxian JIE. A fringe jump counting method for the phase measurement in the HCN laser interferometer on EAST and its FPGA-based implementation[J]. Plasma Science and Technology, 2024, 26(4): 045601. DOI: 10.1088/2058-6272/ad0dec
[2]	Qinlin TAO, Peng SHI, Li GAO, Lu WANG, Zhongyong CHEN, Zhonghe JIANG, Yinan ZHOU, Chengyu YANG, Yuhan WANG, Zhipeng CHEN, Nengchao WANG, Zhoujun YANG, Yonghua DING, Yuan PAN, the J-TEXT Team. Development of the HCN heterodyne collective scattering system on J-TEXT[J]. Plasma Science and Technology, 2022, 24(6): 064011. DOI: 10.1088/2058-6272/ac5d08
[3]	Bo HONG, Changlin LAN, Xiaodong PAN, Chao XU, Haiqing LIU. Radiation shielding design of the CFETR polarimeter interferometer and CO₂ dispersion interferometer[J]. Plasma Science and Technology, 2022, 24(6): 064010. DOI: 10.1088/2058-6272/ac6651
[4]	Yinhai PAN (潘银海), Bowen ZHENG (郑博文), Wei ZHANG (张伟), Zejie YIN (阴泽杰). Development of the HL-2M digital pulse analysis system[J]. Plasma Science and Technology, 2019, 21(11): 115601. DOI: 10.1088/2058-6272/ab341d
[5]	Xiang ZHOU (周翔), Zihao LIU (刘子豪), Chao CHEN (陈超), Renjie ZHU (朱仁杰), Li ZHAO (赵丽), Lingfeng WEI (魏凌峰), Zejie YIN (阴泽杰). A novel digital neutron flux monitor for international thermonuclear experimental reactor[J]. Plasma Science and Technology, 2018, 20(6): 65603-065603. DOI: 10.1088/2058-6272/aab300
[6]	Chen YUAN (袁晨), Jun WU (吴军), Zejie YIN (阴泽杰). A digital wide range neutron flux measuring system for HL-2A[J]. Plasma Science and Technology, 2017, 19(8): 84004-084004. DOI: 10.1088/2058-6272/aa6bf1
[7]	Gen LI (李根), Xuechao WEI (魏学朝), Haiqing LIU (刘海庆), Junjie SHEN (申俊杰), Yinxian JIE (揭银先), Hui LIAN (连辉), Long ZENG (曾龙), Zhiyong ZOU (邹志勇), Jibo ZHANG (张际波), Shouxin WANG (王守信). Development of an HCN dual laser for the interferometer on EAST[J]. Plasma Science and Technology, 2017, 19(8): 84003-084003. DOI: 10.1088/2058-6272/aa667b
[8]	LIU Yukai (刘煜锴), GAO Li (高丽), LIU Haiqing (刘海庆), YANG Yao (杨曜), GAO Xiang (高翔), J-TEXT Team. Fast Data Processing of a Polarimeter-Interferometer System on J-TEXT[J]. Plasma Science and Technology, 2016, 18(12): 1143-1147. DOI: 10.1088/1009-0630/18/12/01
[9]	SHI Peiwan (施培万), SHI Zhongbing (石中兵), CHEN Wei (陈伟), ZHONG Wulyu (钟武律), YANG Zengchen (杨曾辰), JIANG Min (蒋敏), ZHANG Boyu (张博宇), LI Yonggao (李永高), YU Liming (于利明), LIU Zetian (刘泽田), DING Xuantong (丁玄同). Multichannel Microwave Interferometer for Simultaneous Measurement of Electron Density and its Fluctuation on HL-2A Tokamak[J]. Plasma Science and Technology, 2016, 18(7): 708-713. DOI: 10.1088/1009-0630/18/7/02
[10]	LI Gongshun (李恭顺), YANG Yao (杨曜), LIU Haiqing (刘海庆), JIE Yinxian (揭银先), ZOU Zhiyong (邹志勇), WANG Zhengxing (王正兴), ZENG Long (曾龙), WEI Xuechao (魏学朝), LI Weiming (李维明), LAN Ting (兰婷), ZHU Xiang (朱翔), LIU Yukai (刘煜锴), GAO Xiang (高翔). Bench Test of the Vibration Compensation Interferometer for EAST Tokamak[J]. Plasma Science and Technology, 2016, 18(2): 206-210. DOI: 10.1088/1009-0630/18/2/19