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Conceptual study of a DT tokamak reactor with environmental and safety advantages

Research Project

Project/Area Number 25420898
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nuclear fusion studies
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

Tobita Kenji  国立研究開発法人日本原子力研究開発機構, 核融合研究開発部門 六ヶ所核融合研究所, 部長 (50354569)

Co-Investigator(Kenkyū-buntansha) HATAYAMA Akiyoshi  学校法人慶應義塾大学, 理工学部, 教授 (10245607)
Co-Investigator(Renkei-kenkyūsha) SOMEYA Youji  国立研究開発法人日本原子力研究開発機構, 核融合研究開発部門 六ヶ所核融合研究所, 任期付研究員 (20589345)
NAKAMURA Makoto  国立研究開発法人日本原子力研究開発機構, 核融合研究開発部門 六ヶ所核融合研究所, 任期付研究員 (80462886)
UTOH Hiroyasu  国立研究開発法人日本原子力研究開発機構, 核融合研究開発部門 六ヶ所核融合研究所, 研究員 (50566247)
KAWAMURA Yoshinori  国立研究開発法人日本原子力研究開発機構, 核融合研究開発部門 六ヶ所核融合研究所, グループリーダー (10354614)
ASAKURA Nobuyuki  国立研究開発法人日本原子力研究開発機構, 核融合研究開発部門 六ヶ所核融合研究所, 研究主幹 (10222572)
HOSHINO Kazuo  国立研究開発法人日本原子力研究開発機構, 核融合研究開発部門 六ヶ所核融合研究所, 研究員 (50513222)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords核融合炉 / 安全性 / 閉じ込め障壁 / 冷却材喪失事故
Outline of Final Research Achievements

A fusion plant concept with a high level of safety characteristics of assuring evacuation-free even for large scale hypothetical events called "upper bounding sequences", was investigated with an emphasis on confinement strategy of mobile radioactive materials and prevention/mitigation systems against the events. It was found that the safety of the fusion plant can be assured for the hypothetical events such as the total loss of coolant accidents, a large-scale loss-of-coolant accident outside the vacuum vessel, etc., when appropriate confinement barriers and mitigation systems are adopted.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (15 results)

All 2016 2015 2014 2013

All Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results,  Acknowledgement Compliant: 4 results) Presentation (10 results) (of which Invited: 3 results)

  • [Journal Article] Thermohydraulic analysis of accident scenarios of a water-cooled fusion DEMO reactor2016

    • Author(s)
      M. Nakamura, K. Watanabe, K. Tobita, H. Tanigawa, H. Utoh, Y. Sakamoto,W. Gulden
    • Journal Title

      IEEE Transactions on Plasma Science

      Volume: 未定

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Safety research on fusion DEMO in Japan: Toward development of safety strategy of a water-cooled DEMO2016

    • Author(s)
      M. Nakamura, K. Tobita, Y. Someya, H. Utoh, Y. Sakamoto, W. Gulden
    • Journal Title

      Fusion Engineering and Design

      Volume: 未定 Pages: 1417-1421

    • DOI

      10.1016/j.fusengdes.2015.12.008

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Thermohydraulic responses of a water- cooled tokamak fusion DEMO to loss of coolant accidents2015

    • Author(s)
      M. Nakamura, K. Tobita, Y. Someya, H. Utoh, Y.Sakamoto, W. Gulden
    • Journal Title

      Nuclear Fusion

      Volume: 55 Issue: 12 Pages: 123008-123008

    • DOI

      10.1088/0029-5515/55/12/123008

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Management scenario for reduction of radioactive waste on an fusion DEMO reactor2015

    • Author(s)
      Y. Someya, K. Tobita, H. Utoh, N. Asakura, Y. Sakamoto, K. Hoshino, M. Nakamura, S. Tokunaga
    • Journal Title

      Fusion Science and Technology

      Volume: 68 Issue: 2 Pages: 423-427

    • DOI

      10.13182/fst15-101

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Key Aspects of the Safety Study of a Water-Cooled Fusion DEMO Reactor2014

    • Author(s)
      M. Nakamura, K. Tobita, Y. Someya, H. Tanigawa, W. Gulden et al.
    • Journal Title

      Plasma and Fusion Research

      Volume: 9 Issue: 0 Pages: 1405139-1405139

    • DOI

      10.1585/pfr.9.1405139

    • NAID

      130005093288

    • ISSN
      1880-6821
    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 水冷却トカマク原型炉の冷却材喪失事象の研究2014

    • Author(s)
      中村誠、飛田健次、染谷洋二、谷川尚、坂本宜照、W. Gulden
    • Organizer
      Plasma Conference 2014
    • Place of Presentation
      金沢市
    • Year and Date
      2014-11-18 – 2014-11-21
    • Related Report
      2014 Research-status Report
  • [Presentation] Fundamental strategy of DEMO concept development in Japan2014

    • Author(s)
      K. Tobita, H. Utoh, Y. Someya, N. Asakura, K. Hoshino, et al.
    • Organizer
      Topical Meeting on Technology of Fusion Energy
    • Place of Presentation
      Anaheim, U.S.A.
    • Year and Date
      2014-11-10 – 2014-11-13
    • Related Report
      2014 Research-status Report
    • Invited
  • [Presentation] Management scenario for reduction of radioactive waste on a fusion DEMO reactor2014

    • Author(s)
      Y. Someya, K. Tobita, H. Utoh, N. Asakura, Y. Sakamoto et al.
    • Organizer
      Topical Meeting on Technology of Fusion Energy
    • Place of Presentation
      Anaheim, U.S.A.
    • Year and Date
      2014-11-10 – 2014-11-13
    • Related Report
      2014 Research-status Report
  • [Presentation] Analysis of accident scenarios of a water-cooled tokamak DEMO2014

    • Author(s)
      M. Nakamura, K. Ibano, K. Tobita, Y. Someya, H. Tanigawa et al.
    • Organizer
      25th IAEA Fusion Energy Conference
    • Place of Presentation
      St. Petersberg, Russia
    • Year and Date
      2014-10-13 – 2014-10-18
    • Related Report
      2014 Research-status Report
  • [Presentation] 原型炉設計の現状と課題2014

    • Author(s)
      飛田健次
    • Organizer
      第10回核融合エネルギー連合講演会
    • Place of Presentation
      つくば市
    • Year and Date
      2014-06-19 – 2014-06-20
    • Related Report
      2014 Research-status Report
  • [Presentation] トカマク型原型炉における冷却材喪失事象の研究2014

    • Author(s)
      中村誠、飛田健次、染谷洋二、谷川尚、荒木隆夫他
    • Organizer
      第10回核融合エネルギー連合講演会
    • Place of Presentation
      つくば市
    • Year and Date
      2014-06-19 – 2014-06-20
    • Related Report
      2014 Research-status Report
  • [Presentation] 原型炉設計の課題2014

    • Author(s)
      飛田健次
    • Organizer
      第10回核融合エネルギー連合講演会
    • Place of Presentation
      つくば
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] トカマク原型炉における冷却材喪失事象の研究2014

    • Author(s)
      中村誠、飛田健次、染谷洋二、谷川尚、荒木隆夫他
    • Organizer
      第10回核融合エネルギー連合講演会
    • Place of Presentation
      つくば
    • Related Report
      2013 Research-status Report
  • [Presentation] Analysis of accident scenarios of a water-cooled tokamak DEMO2014

    • Author(s)
      M. Nakamura, K. Ibano, K. Tobita, Y. Someya, H. Tanigawa, W. Gulden,
    • Organizer
      25th IAEA Fusion Energy Conference
    • Place of Presentation
      Saint Petersburg, Russia
    • Related Report
      2013 Research-status Report
  • [Presentation] 核融合原型炉の安全性研究2013

    • Author(s)
      中村誠、飛田健次、染谷洋二、谷川尚、W. Gulden
    • Organizer
      プラズマ・核融合学会 第30回年会
    • Place of Presentation
      東京工業大学
    • Related Report
      2013 Research-status Report
    • Invited

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Published: 2014-07-25   Modified: 2019-07-29  

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