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タイトル :Negative DC Prebreakdown Phenomena and Breakdown-Voltage Characteristics of Pressurized Carbon Dioxide up to Supercritical Conditions
著者 :Kiyan, Tsuyoshi
Uemura, Akihiro
Roy, Bhupesh C.
Namihira, Takao
Hara, Masanori
Sasaki, Mitsuru
Goto, Motonobu
Akiyama, Hidenori
刊行年月日 :2007-6
巻 :35
号 :3
開始ページ :656
終了ページ :662
要約(Abstract) :This paper deals with the experimental results on prebreakdown phenomena and breakdown voltage characteristics of a negative dc point-to-plane gap in-compressed carbon dioxide up to the supercritical pressure as the first step to develop a plasma reactor with supercritical carbon dioxide. The gap length and the curvature radius of the point tip were 200 and around 35 $muhbox{m}$, respectively. The experimental results show the following: 1) corona discharge preceding complete breakdown is observed more clearly in liquid and supercritical fluid than in gas; 2) the estimated discharge onset voltage according to the streamer theory is in fairly good agreement with the measured breakdown voltage in the gas density region of 0.1–30 $hbox{kg}cdot hbox{m}^{-3}$; 3) the breakdown mechanism in liquid can be classified into two categories: bubble-triggered breakdown at lower pressure and non bubble-triggered breakdown at higher pressure; 4) the breakdown mechanism in supercritical fluid is similar to that in higher pressured liquid; and 5) the density and temperature dependences of breakdown voltage in liquid and supercritical fluid are related closely with the breakdown mechanism.
収録種別 :雑誌掲載論文
出版社(者) :Institute of Electrical and Electronics Engineers
権利(Rights) :c2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. IEEE, IEEE TRANSACTIONS ON PLASMA SCIENCE, 35, 3, 2007, 656-662
URI :http://hdl.handle.net/2298/3502
このアイテムの引用には次の識別子を使用してください: http://hdl.handle.net/2298/3502