期刊文献+

The Study of Active Atoms in High-Voltage Pulsed Coronal Discharge by Optical Diagnostics

The Study of Active Atoms in High-Voltage Pulsed Coronal Discharge by Optical Diagnostics
下载PDF
导出
摘要 In this study, the emission spectra of active atoms O (3p5P → 3s5S20 777.4 nm), Hα (3P → 2S 656.3 nm) and N (3p4P → 3sαS0 742.3 nm, 744.2 nm, 746.8 nm) produced by the positive high-voltage pulsed corona discharge (HVPCD) of N2 and H2O mixture in a needle-plate reactor have successfully been recorded against a severe electromagnetic interference coming from the HVPCD at one atmosphere. The effects of the peak voltage, the repetition rate of pulsed discharge and the flow rate of oxygen on the production of those active atoms are investigated. It is found that when the peak voltage and the repetition rate of the pulsed discharge are increased, the emission intensities of those active atoms rise correspondingly. And the emission intensities of O (3p5P → 3s5S20 777.4 nm), Hα (3P → 2S 656.3 nm) and N (3p4P → 3s4S0 742.3 nm, 744.2 nm, 746.8 nm) increase with the flow rate of oxygen (from 0 to 25 ml/min) and achieve a maximum value at a flow rate of 25 ml/min. When the flow rate of oxygen is increased further, the emission intensities of those atoms visibly decrease correspondingly. The main physicochemical processes of interaction involved between electrons, neutrals and ions are also discussed. In this study, the emission spectra of active atoms O (3p5P → 3s5S20 777.4 nm), Hα (3P → 2S 656.3 nm) and N (3p4P → 3sαS0 742.3 nm, 744.2 nm, 746.8 nm) produced by the positive high-voltage pulsed corona discharge (HVPCD) of N2 and H2O mixture in a needle-plate reactor have successfully been recorded against a severe electromagnetic interference coming from the HVPCD at one atmosphere. The effects of the peak voltage, the repetition rate of pulsed discharge and the flow rate of oxygen on the production of those active atoms are investigated. It is found that when the peak voltage and the repetition rate of the pulsed discharge are increased, the emission intensities of those active atoms rise correspondingly. And the emission intensities of O (3p5P → 3s5S20 777.4 nm), Hα (3P → 2S 656.3 nm) and N (3p4P → 3s4S0 742.3 nm, 744.2 nm, 746.8 nm) increase with the flow rate of oxygen (from 0 to 25 ml/min) and achieve a maximum value at a flow rate of 25 ml/min. When the flow rate of oxygen is increased further, the emission intensities of those atoms visibly decrease correspondingly. The main physicochemical processes of interaction involved between electrons, neutrals and ions are also discussed.
出处 《Plasma Science and Technology》 SCIE EI CAS CSCD 2005年第3期2851-2855,共5页 等离子体科学和技术(英文版)
基金 The project supported by the United Fund of the National Natural Science Foundation of China and the Engineering Physics Institute of China (No. 10276008)the funding of Liaoning Province Natural Science Foundation (No. 20022138)
关键词 active atoms emission spectrum pulsed corona discharge water vapor active atoms, emission spectrum, pulsed corona discharge, water vapor
  • 相关文献

参考文献29

  • 1Mizuno A, Clements J S, Davis R H. IEEE Trans. Ind.Appl. 1986, 22:516.
  • 2HeY J, Dong L M, Yang J X. Plasma Science & Technology, 2004, 6 (2): 2250 - 2254.
  • 3Yan X F, Hu Z. Plasma Science & Technology, 2004,6 (2): 2241 -2246.
  • 4Sun J Z, Stirner T, Wang D Z. Plasma Science & Technology, 2002, 4 (2): 1227 - 1238.
  • 5Zuo L, Hou L A, Yang L S. Plasma Science & Technology, 2003, 5 (5): 1961 - 1964.
  • 6Sugiarto A T, Ito S, Ohshima T, et al. J. Electrostatics, 2003, 58:135 - 145.
  • 7Abou-Ghazala A, Katsuki S, Schoenbach K H, et al.IEEE Trans. Plasma Sci., 2002, 30:1449 - 1453.
  • 8Yamamoto M, Nishioka M, Sadakata M. J. Electrostatics, 2002, 56:173 - 187.
  • 9Oda T. J. Electrostatics, 2003, 57:293 - 311.
  • 10Roland U, Holzer F, Kopinke F D. Catalysis Today,2002, 73:315 - 323.

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部