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Fundamental study of pulsed arc discharge in supercritical fluid for constructing an environment-friendly technology

Research Project

Project/Area Number 16K18062
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Power engineering/Power conversion/Electric machinery
Research InstitutionNagasaki University

Principal Investigator

FURUSATO Tomohiro  長崎大学, 工学研究科, 助教 (70734002)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords超臨界流体 / パルスパワー / アーク放電 / 高電圧工学 / パルスパワー工学 / 放電工学 / 超臨界二酸化炭素
Outline of Final Research Achievements

The basic characteristics of pulsed arc discharge plasma generated in supercritical carbon dioxide were studied aiming the growing utilization of supercritical fluid application technology. The analyses of pulsed voltage/current waveforms, spectroscopic measurements, statistical characteristics of breakdown voltage, and laser-shadowgraph images were performed to elucidate the pulsed discharge phenomena in supercritical carbon dioxide. The unique discharge behavior appears in supercritical phase in comparison with gas phase through a series of experiments.

Academic Significance and Societal Importance of the Research Achievements

本研究では,化学工学の分野で抽出,分解などの環境にやさしい溶媒として実績のある超臨界流体の応用分野を広げることを目標として,超臨界二酸化炭素中のパルスアーク放電の基礎特性について研究を行った.超臨界流体の特徴が一番大きく表れる臨界点近傍の条件でプラズマ温度が減少するなどの特異な特性を見出すことができた.このことは放電工学の観点から非常に重要な知見であると考えられる.また,放電プラズマから強力な衝撃波の伝搬の様子が観測され,材料合成や抽出などの応用を考えた際にも重要な現象になると考えられる.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (16 results)

All 2019 2018 2017 2016

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (12 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] Anomalous Plasma Temperature at Supercritical Phase of Pressurized CO2 after Pulsed Breakdown Followed by Large Short-circuit Current2018

    • Author(s)
      T. Furusato, N. Ashizuka, T. Kamagahara, Y. Matsuda, T. Yamashita, M. Sasaki, T. Kiyan, and Y. Inada
    • Journal Title

      IEEE Transactions on Dielectrics and Electrical Insulation

      Volume: 25 Issue: 5 Pages: 1807-1813

    • DOI

      10.1109/tdei.2018.007213

    • NAID

      120006987918

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spectroscopic characteristics of pulsed arc discharge in high-pressure CO<inf>2</inf> up to supercritical phase2017

    • Author(s)
      Furusato T.、Ashizuka N.、Kamagahara T.、Fujishima T.、Yamashita T.、Sasaki M.、Kiyan T.
    • Journal Title

      Proceedings of 19th International Conference on Dielectric Liquids

      Volume: - Pages: 1-4

    • DOI

      10.1109/icdl.2017.8124614

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Investigation of pulsed breakdown characteristics in high-pressure CO<inf>2</inf> including supercritical phase under non-uniform electric field2017

    • Author(s)
      Kamagahara T.、Ashizuka N.、Furusato T.、Fujishima T.、Yamashita T.、Sasaki M.、Kiyan T.
    • Journal Title

      Proceedings of 19th International Conference on Dielectric Liquids

      Volume: - Pages: 1-4

    • DOI

      10.1109/icdl.2017.8124619

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Effect of Voltage Rise Rate on Streamer Branching and Shock Wave Characteristics in Supercritical Carbon Dioxide2016

    • Author(s)
      Furusato T., Ota M., Fujishima T., Yamashita T., Sakugawa T., Katsuki S., Akiyama H.
    • Journal Title

      IEEE Transactions on Plasma Science

      Volume: 44 Issue: 12 Pages: 3189-3195

    • DOI

      10.1109/tps.2016.2607225

    • NAID

      120006987542

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] 超臨界相を含む高圧二酸化炭素中ナノ秒パルスアーク放電プラズマの過渡的加熱プロセスの解析2019

    • Author(s)
      芦塚直和,古里友宏,後藤宏輔,喜屋武毅,佐々木満,山下敬彦
    • Organizer
      誘電・絶縁材料/放電・プラズマ・パルスパワー/高電圧合同研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Generation of pulsed arc discharge plasma in supercritical carbon dioxide2018

    • Author(s)
      T. Furusato, N. Ashizuka, K. Goto, T. Yamashita, T. Honma, M. Sasaki
    • Organizer
      8th international symposium on Molecular Thermodynamics and Molecular Simulation
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Dependence of plasma temperature and breakdown voltage on ambient medium temperature in high pressure CO2 including supercritical phase2018

    • Author(s)
      N. Ashizuka, T. Furusato, K. Goto, T. Kiyan, M. Sasaki, T. Yamashita
    • Organizer
      ESCAMPIG XXIV
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 超臨界二酸化炭素中パルスアーク放電プラズマのスペクトル拡がりの解析2018

    • Author(s)
      後藤宏輔,古里友宏,芦塚直和,喜屋武毅,佐々木満,山下敬彦
    • Organizer
      平成30 年度 電気・情報関係学会九州支部連合大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 超臨界相を含む高圧二酸化炭素中におけるナノ秒パルスアーク放電の電子密度の解析2018

    • Author(s)
      芦塚直和, 古里友宏, 後藤宏輔, 喜屋武毅, 佐々木満, 山下敬彦
    • Organizer
      静電気学会全国大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 超臨界相を含む加圧二酸化炭素中の正極性ナノ秒パルス絶縁破壊電圧と火花遅れ2018

    • Author(s)
      蒲ケ原健,古里友宏,芦塚直和,佐々木満,喜屋武毅,山下敬彦
    • Organizer
      放電 誘電・絶縁材料 高電圧研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] 超臨界二酸化炭素中パルスアーク放電プラズマの消費エネルギーの評価2017

    • Author(s)
      芦塚直和,古里友宏,蒲ヶ原健,喜屋武毅,佐々木満,山下敬彦
    • Organizer
      平成29年度 電気・情報関係学会九州支部連合大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 超臨界二酸化炭素中パルスアーク放電のプラズマ温度評価2017

    • Author(s)
      芦塚直和,古里友宏,蒲ヶ原健,喜屋武毅,佐々木満,山下敬彦
    • Organizer
      平成29年 電気学会 基礎・材料・共通部門大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 超臨界二酸化炭素中におけるパルスアーク放電の発光スペクトルの解析2017

    • Author(s)
      芦塚直和,古里友宏,蒲ヶ原健,喜屋武毅,佐々木満,山下敬彦
    • Organizer
      静電気学会全国大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 超臨界二酸化炭素中におけるパルスアーク放電の発光分光計測及びプラズマチャネルの観測2017

    • Author(s)
      芦塚直和,蒲ヶ原健,古里友宏,是枝弘行,藤島友之,山下敬彦
    • Organizer
      プラズマ・パルスパワー・放電合同研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] 超臨界二酸化炭素中のプラズマの基礎特性2016

    • Author(s)
      蒲ケ原健,古里友宏,是枝弘行,藤島友之,山下敬彦,佐々木満
    • Organizer
      平成28年 電気学会 基礎・材料・共通部門大会
    • Place of Presentation
      九州工業大学(福岡県・北九州市)
    • Year and Date
      2016-09-05
    • Related Report
      2016 Research-status Report
  • [Presentation] Energy Consumption Characteristics of Pulsed Arc Discharge in High Pressure Carbon Dioxide up to Supercritical Phase2016

    • Author(s)
      T. Furusato, T. Kamagahara, H. Koreeda, T. Fujishima, and T. Yamashita
    • Organizer
      2016 IEEE International Power Modulator and High Voltage Conference
    • Place of Presentation
      San Francisco, CA, USA
    • Year and Date
      2016-06-05
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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