印加磁界環境下でのCO2アークとSF6アークの比較
印加磁界環境下でのCO2アークとSF6アークの比較
カテゴリ: 論文誌(論文単位)
グループ名: 【B】電力・エネルギー部門
発行日: 2013/11/01
タイトル(英語): Comparison between CO2 and SF6 Arc Plasmas under Externally Applied Magnetic Field
著者名: 平山 智士(筑波大学大学院システム情報工学研究科),木内 健人(筑波大学理工学群工学システム学類),藤野 貴康(筑波大学大学院システム情報工学研究科),石川 本雄(筑波大学大学院システム情報工学研究科),森 正((株)東芝),岩本 勝治((株)東芝),河野 広道((株)東芝)
著者名(英語): Satoshi Hirayama (Graduate School of Systems and Information Engineering, University of Tsukuba), Kento Kiuchi (College of Engineering Systems, School of Science and Engineering, University of Tsukuba), Takayasu Fujino (Graduate School of Systems and Information Engineering, University of Tsukuba), Motoo Ishikawa (Graduate School of Systems and Information Engineering, University of Tsukuba), Tadashi Mori (Toshiba Corporation), Katsuharu Iwamoto (Toshiba Corporation), Hiromichi Kawano (Toshiba Corporation)
キーワード: CO2ガス,SF6代替ガス,アークプラズマ,外部印加磁界,電磁流体解析 CO2 gas,SF6 alternative gas,arc plasma,externally applied magnetic field,magnetohydrodynamic numerical analysis
要約(英語): Effects of an externally applied magnetic field on CO2 and SF6 arc plasmas are examined by three-dimensional time-dependent magnetohydrodynamic numerical analysis. The present numerical analysis is carried out for a cylindrical-shaped simple chamber filled with CO2 or SF6 under the condition of direct electric current and uniform magnetic field. The dependence of thermodynamic and transport properties, and emission coefficients of each gas on temperature and pressure is taken into account in the numerical analysis. Numerical results show that thermal constriction of arc column by applying a magnetic field is more clearly apparent in the case of CO2. The heat transfer from arc plasma to surrounding gas for CO2 is more intense than that for SF6. This is because the rotational speed of arc plasma for CO2 is about two times faster than that for SF6, and also the thermal conductivity of CO2 at the edge of arc column is higher than SF6. In the case of CO2, both of arc voltage and pressure are more greatly increased by applying the magnetic field compared with the case of SF6.
本誌: 電気学会論文誌B(電力・エネルギー部門誌) Vol.133 No.11 (2013) 特集:開閉保護技術
本誌掲載ページ: 843-850 p
原稿種別: 論文/日本語
電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/133/11/133_843/_article/-char/ja/
受取状況を読み込めませんでした
