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タイトル :Pulsed and DC discharges in supercritical carbon dioxide
著者 :Kiyan, Tsuyoshi
Tanaka, K.
Uemura, A.
Takade, M.
Roy, B.C.
Namihira, Takao
Sasaki, M.
Akiyama, Hidenori
Goto, M.
Hara, Masanori
刊行年月日 :2007-6
収録雑誌名 :Digest of Technical Papers-IEEE International Pulsed Power Conference
巻 :2007
開始ページ :1528
終了ページ :1531
要約(Abstract) :This paper reports the experimental results on the breakdown voltage and phenomena in carbon dioxide medium at 298, 304 and 373 K and within the pressure range of 0.1 to 12.0/20.0 MPa under the point-to-plane electrode using negative dc and pulsed discharge. From the experimental results of negative dc discharge, corona discharges with preceding as well as complete breakdown are observed more clearly in liquid and in supercritical phase than in gas phase of carbon dioxide. The calculated electric field intensity on the tip of point electrode at the corona onset voltage is about 450 MV/m; it suggests that corona is triggered by the field emission of electron. The breakdown mechanism of liquid phase can be classified into two categories in comparison with critical pressure of medium. On the other hand, in the experimental result of pulse electric discharge, the time delay of pulse forming and the relevance of the medium density were found.
収録種別 :会議発表論文
出版社(者) :Institute of Electrical and Electronics Engineers
権利(Rights) :(c)2007 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.
備考 :16th IEEE International Pulsed Power Conference, Albuquerque, New Mexico, June 17-22, 2007
URI :http://hdl.handle.net/2298/10323
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/2298/10323