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Passive core injection cooling system by steam injector to avert the core melt at SBO

Research Project

Project/Area Number 25289345
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field Nuclear engineering
Research InstitutionHokkaido University

Principal Investigator

Mori Michitsugu  北海道大学, 工学(系)研究科(研究院), 特任教授 (00611485)

Co-Investigator(Kenkyū-buntansha) Narabayashi Tadashi  北海道大学, 工学(系)研究科(研究院), 特任教授 (10419947)
Abe Yutaka  筑波大学, システム情報工学研究科(系), 教授 (10241720)
Sakashita Hiroto  北海道大学, 工学(系)研究科(研究院), 准教授 (00142696)
Miwa Zhuichiro  北海道大学, 工学(系)研究科(研究院), 助教 (00705288)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2015: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2014: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2013: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
Keywords原子力 / 安全 / 全電源喪失 / 過酷事故 / 蒸気インジェクタ / 静的ポンプ / 原子炉注水 / 炉心溶融事故回避 / 静的機器 / 高速噴流 / 気液二相流 / 原子力発電プラント / 安全性 / 炉心注水 / シビアアクシデント
Outline of Final Research Achievements

Even if a nuclear reactor lost all power sources, the Steam Injector (SI) enables to inject water and cool down a nuclear reactor by mixed water jet with steam generated from the abnormally-heated reactor itself and water from a water tank or a fire engine due to a higher discharge pressure of SI than the reactor pressure. The work carried out the development and application of SI system for a severe accident. When the reactor pressure decreases close to atmospheric pressure, SI enabled to inject the water jet mixed with gravity-driven water from the high-rise water tank and the steam from a boiler simulating the reactor. Up to around 1.5MPa (~15 atm), a fire engine to be equipped with multiple units for severe-accident mitigation should works as water suppliers and SI could be confirmed to work as the passive injection pump using the steam from the reactor by the experiments and analyses. It is necessary to develop SI system to operate at higher-elevated steam pressures in the future.

Report

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

    (11 results)

All 2016 2015 2014 Other

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 2 results) Remarks (1 results)

  • [Journal Article] Two-phase flow structure and operating characteristics of supersonic steam injector2015

    • Author(s)
      Kyosuke SATO,Yutaka ABE,Akiko KANEKO,Tetsuya KANAGAWA,Michitsugu MORI
    • Journal Title

      Mechanical Engineering Journal

      Volume: 2 Issue: 5 Pages: 15-00004-15-00004

    • DOI

      10.1299/mej.15-00004

    • NAID

      130005103821

    • ISSN
      2187-9745
    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Characteristics of the Steam Injector for the Static Reactor Cooling System2016

    • Author(s)
      H.iroto Endo, Takahiro. Moribe, Shuichiro. Miwa, Michitsugu. Mori
    • Organizer
      ICAPP 2016
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2016-04-17
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 静的安全炉心注水系としての蒸気インジェクタ作動特性に関する研究2016

    • Author(s)
      遠藤宏純、森部貴裕、三輪修一郎、森治嗣
    • Organizer
      日本原子力学会 2016春の年会
    • Place of Presentation
      東北大学 川内キャンパス
    • Year and Date
      2016-03-26
    • Related Report
      2015 Annual Research Report
  • [Presentation] 蒸気インジェクタシステムの作動範囲と吐出性能に関する研究2016

    • Author(s)
      森部貴裕、遠藤宏純、三輪修一郎、森治嗣
    • Organizer
      日本機械学会 北海道支部第45回 学生員卒業研究発表講演会
    • Place of Presentation
      函館工業高等専門学校
    • Year and Date
      2016-03-07
    • Related Report
      2015 Annual Research Report
  • [Presentation] OPERATING CRITERIA AND MECHANISMS OF SUPERSONIC STEAM INJECTORS2015

    • Author(s)
      Kyosuke SATO, Yutaka ABE,Akiko KANEKO, Tetsuya KANAGAWA, Michitsugu MORI
    • Organizer
      ICONE23
    • Place of Presentation
      Makuhari Messe, Chiba, Japan.
    • Year and Date
      2015-05-17
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 超音速蒸気インジェクターの作動範囲と吐出圧力発生機構2015

    • Author(s)
      佐藤 喬亮, 阿部 豊, 金子 暁子, 金川 哲也, 森 治嗣
    • Organizer
      日本原子力学会2015年春の年会
    • Place of Presentation
      茨城大学
    • Year and Date
      2015-03-20 – 2015-03-22
    • Related Report
      2014 Annual Research Report
  • [Presentation] 超音速蒸気インジェクターの作動特性と圧力発生機構2014

    • Author(s)
      佐藤 喬亮, 阿部 豊, 金子 暁子, 金川 哲也, 森 治嗣
    • Organizer
      日本原子力学会2014年秋の大会
    • Place of Presentation
      京都大学
    • Year and Date
      2014-09-08 – 2014-09-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] INFLUENCE OF TWO-PHASE FLOW STRUCTURE ON OPERATING2014

    • Author(s)
      Kyosuke SATO, Yutaka ABE, Akiko KANEKO, Michitsugu MORI
    • Organizer
      Proceedings of the 2014 22nd International Conference on Nuclear Engineering(ICONE22)
    • Place of Presentation
      Prague, Czech Republic
    • Year and Date
      2014-07-07 – 2014-07-11
    • Related Report
      2014 Annual Research Report
  • [Presentation] 軽水炉過酷事故時における蒸気インジェクタ水蒸気凝縮による炉心注水特性2014

    • Author(s)
      竹谷 勇人、三輪修一郎、坂下弘人、森 治嗣
    • Organizer
      日本機械学会第19回動力・エネルギー技術シンポジウム
    • Place of Presentation
      福井市
    • Year and Date
      2014-06-26 – 2014-06-27
    • Related Report
      2014 Annual Research Report
  • [Presentation] 超音速蒸気インジェクターの吐出噴流挙動が作動限界に及ぼす影響2014

    • Author(s)
      佐藤 喬亮, 阿部 豊, 金子 暁子, 森 治嗣
    • Organizer
      日本原子力学会「2014年春の年会」予稿集
    • Place of Presentation
      東京都市大学
    • Related Report
      2013 Annual Research Report
  • [Remarks] 高性能蒸気インジェクターによる静的炉心注水系の研究

    • URL

      http://nuclearsafety.eng.hokudai.ac.jp/research

    • Related Report
      2014 Annual Research Report

URL: 

Published: 2013-05-21   Modified: 2019-07-29  

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