• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Study on method for instantaneous inactivation of liquid alkari metals

Research Project

Project/Area Number 16K14526
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Nuclear fusion studies
Research InstitutionTokyo Institute of Technology

Principal Investigator

Kondo Masatoshi  東京工業大学, 科学技術創成研究院, 准教授 (70435519)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsアルカリ金属 / 合金 / 消火 / 活性度 / 核融合 / 高速炉 / 液体金属 / 合金化反応 / 核融合炉 / 安全性 / 熱拡散率 / TDS / リチウム / ナトリウム / 合金化 / 燃焼 / 消化 / 火災 / 物性
Outline of Final Research Achievements

Liquid alkali metals are promising coolants for innovative nuclear reactors such as fusion reactors and fast reactors. However, they react with air and water violently. The alkali metal fire has been extinguished by covering with dried powders according to the suffocation effect. However, this is not reasonable method, since lkari metals keep their chemical activity and react with air and water without the cover. The large fire according to the accidental leakage of liquid alkali metal coolant in the nuclear reactors should be extinguished by reasonable methods. In the present study, revolutionary method to extinguish alkali metal fire based on the formation of Li alloys. The behaviors of Li and inert metals (i.e., Pb and Sn) in their alloying process were experimentally investigated. Various experiments were performed to make clear the thermophysical and chemical characteristics of the Li alloys.

Academic Significance and Societal Importance of the Research Achievements

優れた伝熱特性を有する液体アルカリ金属の課題の一つとして、大気や水と反応して燃焼する事が挙げられる。しかし、漏洩事故時等において、適切に処理する方法が確立できれば、そのリスクを大きく低減する事が可能である。従来は、燃焼したアルカリ金属に対して窒息消火が行われてきたが、本研究で提案した方法は化学的活性度の高い溶融アルカリ金属に対して金属片を投入して不活性な合金を形成する事により反応性を制御するという画期的な手法である。今後、更に応用が期待されるアルカリ金属技術(リチウムイオンバッテリーやBNCTターゲット)の安全面に大きく寄与する研究であると言える。

Report

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

    (17 results)

All 2018 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 5 results,  Acknowledgement Compliant: 2 results) Presentation (7 results) (of which Int'l Joint Research: 6 results,  Invited: 2 results) Book (1 results) Remarks (2 results)

  • [Int'l Joint Research] IAEA/Osasa univerisity/NIFS(Austria)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Effect of isotope enrichment on performance of lead-lithium blanket of inertial fusion reactor2018

    • Author(s)
      Masatoshi Kondo, Yuu Nakajima, Teruya Tanaka, Takayoshi Norimatsu
    • Journal Title

      IOP Conf. Series: Journal of Physics: Conf. Series

      Volume: 1090 Pages: 1-7

    • DOI

      10.1088/1742-6596/1090/1/012004

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Oxidation characteristics of lead-alloy coolants in air ingress accident2017

    • Author(s)
      Masatoshi kondo, Nariaki Okubo, Eriko Irisawa, Atsushi Komatsu, Norito Ishikawa, Teruya Tanaka
    • Journal Title

      Energy procedia

      Volume: 131 Pages: 386-394

    • DOI

      10.1016/j.egypro.2017.09.473

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Metallurgical study on corrosion of RAFM steel JLF-1 in Pb-Li alloys with various Li concentrations2017

    • Author(s)
      Masatoshi Kondo, Masaomi Ishii, Yoshimitsu Hishinuma, Teruya Tanaka, Takashi Nozawa, Takeo Muroga
    • Journal Title

      Fusion Engineering and Design

      Volume: 124 Pages: 316-325

    • DOI

      10.1016/j.fusengdes.2017.04.058

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Oxidation characteristics of lead-alloy coolants in air ingress accident2017

    • Author(s)
      Masatoshi Kondo, Nariaki Okubo, Eriko Irisawa, Atsushi Komatsu, Norito Ishikawa, Teruya Tanaka
    • Journal Title

      Energy procedia

      Volume: 不明 Pages: 1-8

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Characterization of functional materials for liquid blanket systems by cathodoluminescence measurement2017

    • Author(s)
      Teruya Tanakaa, b, *, Daiji Kato, b, Takashi Nozawa, Bun Tsuchiya, Masatoshi Kondo, Takeo Muroga
    • Journal Title

      Fusion Engineering and Design

      Volume: in press Pages: 1-4

    • DOI

      10.1016/j.fusengdes.2017.04.095

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Experimental Study on Chemical Behaviors of Non-Metal Impurities in Pb, Pb-Bi and Pb-Li by Temperature Programmed Desorption Mass Spectrometer Analysis2016

    • Author(s)
      Masatoshi KONDO, Yuu. NAKAJIMA, Teruya TANAKA, Takashi NOZAWA, Takehiko YOKOMINE
    • Journal Title

      Plasma and Fusion Research

      Volume: 11 Issue: 0 Pages: 2405076-2405076

    • DOI

      10.1585/pfr.11.2405076

    • NAID

      130005243436

    • ISSN
      1880-6821
    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] EXPERIMENTAL STUDY OF MATERIALS COMPATIBILITY OF HEAVY LIQUID METAL COOLANTS2018

    • Author(s)
      Masatoshi KONDO
    • Organizer
      ISTC NIKIET - 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of high-purity lead lithium alloy and its excellent thermophysical and chemical characteristics2017

    • Author(s)
      Masatoshi Kondo, Park ChanHo, Teruya Tanaka, Takashi Nozawa
    • Organizer
      The 18th International Conference on Fusion Reactor Materials
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Study on neutron transport and material activation for development of inertial fusion reactor2017

    • Author(s)
      Masatoshi Kondo, Yuu Nakajima, Teruya Tanaka, Takayoshi Norimatsu
    • Organizer
      International conference on computation in science and engineering (ICCSE 2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Thermodynamic considerations on chemical interactions between liquid metals and steels2017

    • Author(s)
      Masatoshi Kondo, Changho park, Takashi Nozawa, Yoshimitsu Hishinuma, Teruya Tanaka, Kazuya Sasaki, Yoshihito Matsumura, Minoru Takahashi, Takayoshi Norimatsu, Takeo Muroga
    • Organizer
      First IAEA workshop on challenges for coolants in fast spectrum system: chemistry and materials
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 鉛リチウム燃料増殖材の純度制御及び大量合成手法に関する研究2017

    • Author(s)
      朴 昶虎, 近藤 正聡, 野澤 貴史, 谷川 博康
    • Organizer
      日本原子力学会2017年春の年会
    • Related Report
      2017 Research-status Report
  • [Presentation] Oxidation characteristics of lead-alloy coolants in air ingress accident2016

    • Author(s)
      Masatoshi Kondo, Nariaki Okubo, Eriko Irisawa, Atsushi Komatsu, Norito Ishikawa, Teruya Tanaka
    • Organizer
      The 5th international symposium on innovative nuclear energy systems
    • Place of Presentation
      大岡山, 日本
    • Year and Date
      2016-10-31
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Metallurgical study on corrosion of RAFM steel in Pb-Li alloys at various Li concentrations2016

    • Author(s)
      Masatoshi Kondo, Masaomi Ishii, Yoshimitsu Hishinuma, Teruya Tanaka, Takashi Nozawa, Takeo Muroga
    • Organizer
      13th China-Japan Symposium on Materials for Advanced Energy Systems and Fission & Fusion Engineering
    • Place of Presentation
      Hefei, China
    • Year and Date
      2016-09-26
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Book] 核融合トリチウム研究最前線 ―原型炉実現に向けて― 第5 回液体増殖材開発の最前線2018

    • Author(s)
      近藤正聡, 田中照也
    • Total Pages
      5
    • Publisher
      日本原子力学会
    • Related Report
      2018 Annual Research Report
  • [Remarks] (東京工業大学先導原子力研究所)近藤正聡助教が平成29年度吉川允二核融合エネルギー奨励賞を受賞

    • URL

      http://www.lane.iir.titech.ac.jp/jp/events/data/2018/news180228.html

    • Related Report
      2017 Research-status Report
  • [Remarks] (東京工業大学科学技術創成研究院)近藤正聡助教が平成29年度吉川允二核融合エネルギー奨励賞を受賞

    • URL

      http://www.iir.titech.ac.jp/2018/03/30/prize-43/

    • Related Report
      2017 Research-status Report

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi