同軸円筒型電極内ナノ秒パルス放電の挙動特性

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2019/10/01

タイトル(英語): Behavioral Characteristics of Nanosecond Pulsed Discharge in Coaxial Electrodes

著者名: 龍　輝優（熊本大学大学院自然科学教育部），王　斗艶（熊本大学パルスパワー科学研究所），浪平　隆男（熊本大学パルスパワー科学研究所）

著者名(英語): Terumasa Ryu (Graduate School of Science and Technology, Kumamoto University), Douyan Wang (Institute of Pulsed Power Science, Kumamoto University), Takao Namihira (Institute of Pulsed Power Science, Kumamoto University)

キーワード: ナノ秒パルス，1次ストリーマ，2次ストリーマ，ICCDカメラ，同軸電極　　nanosecond pulse，primary streamer，secondary streamer，ICCD camera，coaxial electrode

要約(英語): The environmental improvements by pulsed discharge plasma, a type of non-thermal plasma, have received much attention all over the world. The observation of discharge plasmas is beneficial for better understanding of the plasma physics of this growing field. Recently, nanosecond (ns) pulsed discharge with a short pulse duration of 5 ns achieved the higher energy efficiency on ozone generation and NO removal. However, the underlying mechanisms of these high efficiencies remain unclear. In the present study, the effects of electrode geometry on propagation process of ns pulsed discharge in coaxial electrodes were investigated using an ICCD camera. As the results, increasing wire diameters from 0.2 mm to 2.0 mm lead the different streamer discharge parameters; propagation velocity of streamer heads from 4.8 mm/ns to 12.5 mm/ns, peak of discharge current from 243 A to 328 A, respectively. Therefore, it is concluded that the wire diameter is one of the paramount parameters to control the characteristics of the ns pulsed streamer discharge.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.139 No.10 （2019） 特集：高繰り返しパルスパワー電源の最新技術と応用

本誌掲載ページ: 445-452 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/ieejfms/139/10/139_445/_article/-char/ja/