Elucidation of pulsed arc discharge phenomena in supercritical carbon dioxide

• Project/Area Number: 26889048
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Nagasaki University
• Principal Investigator: FURUSATO Tomohiro 長崎大学, 工学研究科, 助教 (70734002)
• Project Period (FY): 2014-08-29 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 超臨界二酸化炭素 / アーク放電 / パスルパワー / スイッチ / パルスパワー / シャドウグラフ法 / 絶縁破壊 / プラズマ計測 / レーザ計測

Outline of Final Research Achievements

This study has focused on discharges in supercritical carbon dioxide as an alternative medium of SF6 from the environmental viewpoint. The breakdown voltage recovery ratio under supercritical phase was greater than that of liquid carbon dioxide. Furthermore, the recovery processes at supercritical and liquid phases were visualized by a shadowgraph method to elucidate the difference of voltage recovery ratio at both phases.

Research Products

• [Journal Article] Dielectric recovery mechanism of pressurized carbon dioxide at liquid and supercritical phases (2015)
  • Author(s): H. Tanoue, T. Furusato, T. Imamichi, M. Ota, S. Katsuki and H. Akiyama
  • Journal Title: Japanese Journal of Applied Physics Volume: 54 Issue: 9 Pages: 096102-096102
  • DOI: 10.7567/jjap.54.096102
  • NAID: 210000145680
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Characteristics of Positive Pulse Arc Discharge in Supercritical Carbon Dioxide (2015)
  • Author(s): T. Furusato, H. Tanoue, M. Ota, T. Imamichi, H. Akiyama, Y. Matsuda, T. Fujishima, and T. Yamashita
  • Journal Title: Proceedings of 2015 IEEE Pulsed Power Conference Volume: PPC-O-2-5 Pages: 1-4
  • DOI: 10.1109/ppc.2015.7296788
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Characteristics of Shock Waves Generated by a Negative Pulsed Discharge in Supercritical Carbon Dioxide (2014)
  • Author(s): H. Tanoue, T. Furusato, K. Takahashi, S.H.R. Hosseini, S. Katsuki, H. Akiyama
  • Journal Title: IEEE Transactions on Plasma Science Volume: 42 Issue: 10 Pages: 3258-3263
  • DOI: 10.1109/tps.2014.2345435
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] Spectroscopic Measurement of a Pulsed Arc Discharge in Supercritical Carbon Dioxide (2015)
  • Author(s): T. Kamagahara, T. Furusato, H. Koreeda, T. Fujishima, and T. Yamashita
  • Organizer: ATSPT-9/SPSM-28
  • Place of Presentation: 長崎大学（長崎市）
  • Year and Date: 2015-12-12
  • Int'l Joint Research
• [Presentation] Observation of Ultra-Short Positive Pulsed Discharge in Supercritical Carbon Dioxide (2015)
  • Author(s): M. Ota, T. Furusato, T. Imamichi, T. Sakugawa, S. Katsuki, and H. Akiyama
  • Organizer: ATSPT-9/SPSM-28
  • Place of Presentation: 長崎大学（長崎市）
  • Year and Date: 2015-12-12
  • Int'l Joint Research
• [Presentation] 超臨界二酸化炭素中の極短パルス放電現象の観測 (2015)
  • Author(s): 大田美由紀，古里友宏，今道貴大，佐久川貴志，勝木淳，秋山秀典
  • Organizer: 静電気学会全国大会
  • Place of Presentation: 首都大学東京（東京都八王子市）
  • Year and Date: 2015-09-24
• [Presentation] 超臨界相を含む高圧二酸化炭素中における パルス絶縁破壊現象に関する研究 (2015)
  • Author(s): 古里 友宏，藤島 友之，松田 良信，山下 敬彦， 田上 裕之，大田 美由紀，今道 貴大，秋山 秀典
  • Organizer: 電気学会全国大会
  • Place of Presentation: 東京都市大学（世田谷区）
  • Year and Date: 2015-03-24 – 2015-03-26
• [Presentation] 液体及び超臨界二酸化炭素内における絶縁回復過程調査 (2014)
  • Author(s): 田上裕之, 古里友宏, 今道貴大, 大田美由紀, S.H.R. Hosseini, 勝木淳, 秋山秀典
  • Organizer: 電気・情報関係学会九州支部連合大会
  • Place of Presentation: 鹿児島大学（鹿児島市）
  • Year and Date: 2014-09-18 – 2014-09-19
• [Presentation] Pressure Dependency of Plasma Temperature of Pulse Arc Discharge in Pressurized CO2 up to Supercritical Phase (2014)
  • Author(s): T. Furusato, H. Tanoue, T. Imamichi, M. Ota, H. Akiyama, M. Sasaki, M. Matsuda, T. Fujishima, and T. Yamashita
  • Organizer: 5th Euro-Asian Pulsed Power Conference
  • Place of Presentation: 熊本大学（熊本市）
  • Year and Date: 2014-09-08 – 2014-09-12
• [Presentation] Visualization of Pulsed Breakdown and Recovery Processes in Liquid and Supercritical Carbon Dioxide (2014)
  • Author(s): T. Imamichi, T. Furusato, H. Tanoue, M. Ota, S. H. R. Hosseini, S. Katsuki, and H. Akiyama
  • Organizer: 5th Euro-Asian Pulsed Power Conference
  • Place of Presentation: 熊本大学（熊本市）
  • Year and Date: 2014-09-08 – 2014-09-12