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Clarification of Effect of Gravity on Flame Spreadaing over Condensed Phase and Its Extinction and Proposing of Extinguishing Method in Space

Research Project

Project/Area Number 22310098
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Social systems engineering/Safety system
Research InstitutionHirosaki University

Principal Investigator

ITO Akihiko  弘前大学, 理工学研究科, 教授 (30127972)

Co-Investigator(Kenkyū-buntansha) TORIKAI Hiroyuki  弘前大学, 大学院理工学研究科, 准教授 (50431432)
Project Period (FY) 2010-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000)
Fiscal Year 2013: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2012: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2011: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2010: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Keywords低重力環境 / 落下塔実験 / 凝縮相 / プール火災 / パッフィング現象 / グラスホフ数 / 火炎高さ / 宇宙火災 / 燃え拡がり / 流れの可視化 / 消火 / 拡散火炎 / 火炎構造 / 速度測定 / 火災安全性 / 不活性ガス / シャボン玉
Research Abstract

To improve our understanding of the effects of gravity on flame characteristics, we conducted an experimental investigation on small-scale pool fires under different gravity levels to normal. The drop tower facility at Hirosaki University in Japan was used to obtain an arbitrary low gravity environment. For pool fire in low gravity environments, the measurements revealed that the puffing frequency and flame height declined with decreasing gravity. The flame height showed a tendency to peak at a certain level of gravity. Moreover, the normal velocity component to the flame sheet declined with decreasing gravity. To clarify the factor of puffing occurrence factor, experiments were performed using eleven different sizes of fuel pan and three different kinds of fuels. The occurrence of the puffing phenomenon, namely the puffing- limit, was summarized by the relation between the (H/D)limit and Grashof number, and found to be inversely proportional.

Report

(5 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (38 results)

All 2014 2013 2012 2011 2010 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (35 results)

  • [Journal Article] Flame characteristics of small-scale pool fires under low gravity environments2013

    • Author(s)
      Naohiro Yoshihara, Akihiko Ito, Hiroyuki Torikai
    • Journal Title

      Proceedings of the Combustion Institute

      Volume: Vol.34 Issue: 2 Pages: 2599-2606

    • DOI

      10.1016/j.proci.2012.06.088

    • Related Report
      2013 Final Research Report 2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 高温・減酸素対向流中における薄い可燃性固体の燃え拡がりとその限界2013

    • Author(s)
      伊藤昭彦,鳥飼宏之,小山紘平
    • Journal Title

      日本燃焼学会誌

      Volume: 第55巻 Pages: 293-301

    • NAID

      10031190431

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Flame spread along a thin combustible solid with randomly distributed square pores of two different sizes2012

    • Author(s)
      Shuhei Abe, Akihiko Ito, Hiroyuki Torikai
    • Journal Title

      Modern Applied Science

      Volume: Vol.6 Issue: 9 Pages: 11-19

    • DOI

      10.5539/mas.v6n9p11

    • Related Report
      2013 Final Research Report 2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] Effect of Gravity on Puffing Phenomenon of Liquid Pool Fires2014

    • Author(s)
      Hiroki Abe, Akihiko Ito, Hiroyuki Torikai
    • Organizer
      35th International Symposium on Combustion
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2014-08-07
    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Presentation] Flow Visualization around Flame on the Condensed Fules in Low Gravity Environment2014

    • Author(s)
      Hiroki Abe, Tatusya Inai, Akihiko Ito and Hiroyuki Torikai
    • Organizer
      16th International Symposium on Flow Visualization
    • Place of Presentation
      Okinawa, Japan
    • Related Report
      2013 Annual Research Report
  • [Presentation] Schliren Visualization of Flame Extinguishment with Laser-Driven Blast Wave2014

    • Author(s)
      Yuki Soga, Hiroyuki Torikai and Akihiko Ito
    • Organizer
      16th International Symposium on Flow Visualization
    • Place of Presentation
      Okinawa, Japan
    • Related Report
      2013 Annual Research Report
  • [Presentation] Scale Modeling of Buoyancy-Induced Instability 8th of Pool Fires2013

    • Author(s)
      Yuji Nakamura, Kaoru Wakatsuki, Hiroyuki Torikai, Akihiko Ito
    • Organizer
      The International Symposium on Advanced Science and Technology in Experimental Mechanics
    • Place of Presentation
      Sendai, Japan
    • Year and Date
      2013-11-04
    • Related Report
      2013 Final Research Report
  • [Presentation] Scale Modeling of Buoyancy-induced Instability of Pool Fires2013

    • Author(s)
      Yuji Nakamura, Sou Okuizumi, Kaoru Wakatsuki, Hiroyujki Torikai and Akihiko Ito
    • Organizer
      The 8th International Symposium on Advanced Science and Technology in Experimental Mechanics
    • Place of Presentation
      Sendai, Japan
    • Related Report
      2013 Annual Research Report
  • [Presentation] Extinguishment of a Jet Diffusion Flame with an Inert-Gas Soap Bubble Transported by a Vortex Ring2013

    • Author(s)
      Kohei Watanabe, Hiroyuki Torikai and Akihiko Ito
    • Organizer
      The 24th International Symposium on Transport Phenomena
    • Place of Presentation
      Yamaguchi, Japan
    • Related Report
      2013 Annual Research Report
  • [Presentation] Extinguishment of Pool Fire with Rubber Balloon Inflated Inert Gas2013

    • Author(s)
      Hiroyuki Torikai, Manato Narita, Akihiko Ito
    • Organizer
      The 24th International Symposium on Transport Phenomena
    • Place of Presentation
      Yamaguchi, Japan
    • Related Report
      2013 Annual Research Report
  • [Presentation] Effect of Gravity on Flame Size near Flame Spread Limitation along a Thin Combustion Solid2013

    • Author(s)
      Kohei Koyama, Akihiko Ito and Hiroyuki Torikai
    • Organizer
      7th International Symposium on Scale Modeling
    • Place of Presentation
      Hirosaki, Japan
    • Related Report
      2013 Annual Research Report
  • [Presentation] Extinguishment Characteristics of a Jet Diffusion Flame with Inert Gas Vortex Ring2013

    • Author(s)
      Yuki Chiba, Hiroyuki Torikai and Akihiko Ito
    • Organizer
      7th International Symposium on Scale Modeling
    • Place of Presentation
      Hirosaki, Japan
    • Related Report
      2013 Annual Research Report
  • [Presentation] Extinguishment of a Methane Air Diffusion Flame by Using Blast Wave2013

    • Author(s)
      Hiroyuki Torikai, Shota Saito and Akihiko Ito
    • Organizer
      29th International Symposium on Shock Wave
    • Place of Presentation
      Wisconsin, USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] 走性に基づく通路内での燃え拡がり火炎挙動の予測2013

    • Author(s)
      小林創己,伊藤昭彦,鳥飼宏之
    • Organizer
      平成25年度火災学会研究発表会
    • Place of Presentation
      熊本大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] ヘリウムを用いたゴム風船消火の特性2013

    • Author(s)
      成田学人,鳥飼宏之,伊藤昭彦
    • Organizer
      平成25年度火災学会研究発表会
    • Place of Presentation
      熊本大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] 液体燃料プール火炎のPuffing現象に及ぼす重力の作用2013

    • Author(s)
      阿部大輝,伊藤昭彦,鳥飼宏之
    • Organizer
      日本機械学会熱工学コンファレンス2013
    • Place of Presentation
      弘前市,青森
    • Related Report
      2013 Annual Research Report
  • [Presentation] レーザ誘起ブラスト波による噴流拡散火炎の消火特性2013

    • Author(s)
      曽我友樹,鳥飼宏之,伊藤昭彦
    • Organizer
      日本機械学会熱工学コンファレンス2013
    • Place of Presentation
      弘前市,青森
    • Related Report
      2013 Annual Research Report
  • [Presentation] 不規則に配置された可燃性立方体群の燃え拡がりに対する有限サイズスケーリング2013

    • Author(s)
      吉田行伸,伊藤昭彦,鳥飼宏之
    • Organizer
      日本機械学会熱工学コンファレンス2013
    • Place of Presentation
      弘前市,青森
    • Related Report
      2013 Annual Research Report
  • [Presentation] 不活性ガス渦輪を用いた噴流拡散火炎の消火特性2013

    • Author(s)
      千葉友貴,鳥飼宏之,伊藤昭彦
    • Organizer
      第51回燃焼シンポジウム
    • Place of Presentation
      東京
    • Related Report
      2013 Annual Research Report
  • [Presentation] 渦輪によって輸送された不活性ガスを充填したシャボン玉による消火2013

    • Author(s)
      渡邊康平,鳥飼宏之,伊藤昭彦
    • Organizer
      第51回燃焼シンポジウム
    • Place of Presentation
      東京
    • Related Report
      2013 Annual Research Report
  • [Presentation] 破裂したゴム風船から放出される消火ガスの流れ2013

    • Author(s)
      成田学人,鳥飼宏之,伊藤昭彦
    • Organizer
      第51回燃焼シンポジウム
    • Place of Presentation
      東京
    • Related Report
      2013 Annual Research Report
  • [Presentation] 薄い可燃性固体表面上燃え拡がり火炎の流れ場に及ぼす重力の影響2013

    • Author(s)
      稲井達也,伊藤昭彦,鳥飼宏之
    • Organizer
      第51回燃焼シンポジウム
    • Place of Presentation
      東京
    • Related Report
      2013 Annual Research Report
  • [Presentation] 異なる重力環境下における薄い可燃性固体の燃え拡がり限界2012

    • Author(s)
      木村竜男,青木昌也,伊藤昭彦,鳥飼宏之
    • Organizer
      平成24年度日本火災学会研究発表会
    • Place of Presentation
      栃木県,宇都宮市
    • Related Report
      2012 Annual Research Report
  • [Presentation] 不均一に分布する可燃性立方体の燃え拡がり2012

    • Author(s)
      阿部修平,伊藤昭彦,鳥飼宏之
    • Organizer
      平成24年度日本火災学会研究発表会
    • Place of Presentation
      栃木県,宇都宮市
    • Related Report
      2012 Annual Research Report
  • [Presentation] 小型プール火炎の流れ場に及ぼす重力の作用2012

    • Author(s)
      吉原直洋,伊藤昭彦,鳥飼宏之
    • Organizer
      第50回燃焼シンポジウム
    • Place of Presentation
      愛知県,名古屋市
    • Related Report
      2012 Annual Research Report
  • [Presentation] 外部加熱される薄い可燃性固体の燃え拡がり限界2012

    • Author(s)
      小山紘平,木村竜男,伊藤昭彦,鳥飼宏之
    • Organizer
      第50回燃焼シンポジウム
    • Place of Presentation
      愛知県,名古屋市
    • Related Report
      2012 Annual Research Report
  • [Presentation] エタノールを微量に含有したウォーターミスト消火2012

    • Author(s)
      齋藤啓太,伊藤昭彦,鳥飼宏之
    • Organizer
      日本機械学会熱工学コンファレンス
    • Place of Presentation
      熊本県,熊本市
    • Related Report
      2012 Annual Research Report
  • [Presentation] 不均一に分布する可燃性立方体群の燃え拡がりに及ぼす着火位置の影響2012

    • Author(s)
      阿部修平,伊藤昭彦,鳥飼宏之
    • Organizer
      日本機械学会熱工学コンファレンス
    • Place of Presentation
      熊本県,熊本市
    • Related Report
      2012 Annual Research Report
  • [Presentation] 低重力環境におけるプール火災の火炎構造2011

    • Author(s)
      吉原直洋, 伊藤昭彦, 鳥飼宏之
    • Organizer
      第49回燃焼シンポジウム
    • Place of Presentation
      神奈川,慶應義塾大学(横浜市)
    • Year and Date
      2011-12-06
    • Related Report
      2011 Annual Research Report
  • [Presentation] 回転場を用いた模擬重力環境における薄い可燃性固体の燃え拡がり実験2011

    • Author(s)
      石郷岡将平, 伊藤昭彦, 鳥飼宏之
    • Organizer
      第49回燃焼シンポジウム
    • Place of Presentation
      神奈川,慶應義塾大学(横浜市)
    • Year and Date
      2011-12-05
    • Related Report
      2011 Annual Research Report
  • [Presentation] プール火災の燃焼性状に及ぼす重力の影響2011

    • Author(s)
      吉原直洋, 伊藤昭彦, 鳥飼宏之
    • Organizer
      平成23年度火災学会研究発表会
    • Place of Presentation
      東京,東京理科大学(新宿区)
    • Year and Date
      2011-05-16
    • Related Report
      2011 Annual Research Report
  • [Presentation] 微小重力環境下における薄い可燃性固体の燃え拡がり限界に及ぼすスケール効果2010

    • Author(s)
      今井真澄, 青木昌也, 伊藤昭彦, 鳥飼宏之
    • Organizer
      第48回燃焼シンポジウム
    • Place of Presentation
      福岡,都久志会館(福岡市)
    • Year and Date
      2010-12-03
    • Related Report
      2010 Annual Research Report
  • [Presentation] 微小重力における薄い可燃性固の燃え拡がり限界におよぼす試料幅の影響2010

    • Author(s)
      青木昌也, 今井真澄, 伊藤昭彦, 鳥飼宏之
    • Organizer
      日本機械学会熱工学コンファレンス2010
    • Place of Presentation
      新潟,長岡技術科学大学(長岡市)
    • Year and Date
      2010-10-31
    • Related Report
      2010 Annual Research Report
  • [Presentation] シャボン玉消火で観察される消火ガスの流れ2010

    • Author(s)
      村下卓美, 鳥飼宏之, 伊藤昭彦
    • Organizer
      日本機械学会熱工学コンファレンス2010
    • Place of Presentation
      新潟,長岡技術科学大学(長岡市)
    • Year and Date
      2010-10-31
    • Related Report
      2010 Annual Research Report
  • [Presentation] 減圧管への吸引流を利用した拡散火炎の消火

    • Author(s)
      古川亮太,鳥飼宏之,中村祐二,伊藤昭彦
    • Organizer
      日本機械学会東北支部第44回卒業研究発表講演会
    • Place of Presentation
      山形大学工学部
    • Related Report
      2013 Annual Research Report
  • [Presentation] ろ紙上を伝播する火炎の窒素ガスを充填したシャボン玉による消火

    • Author(s)
      大堀珪駄,鳥飼宏之,伊藤昭彦
    • Organizer
      日本機械学会東北支部第44回卒業研究発表講演会
    • Place of Presentation
      山形大学工学部
    • Related Report
      2013 Annual Research Report
  • [Presentation] チャーリング/ノンチャーリング 固体材料の燃え拡がり限界

    • Author(s)
      小山紘平,伊藤昭彦,鳥飼宏之
    • Organizer
      日本機械学会東北支部第48 期秋季講演会
    • Place of Presentation
      青森県,八戸市
    • Related Report
      2012 Annual Research Report
  • [Presentation] シャボン玉破裂時に観察される充填ガスの流れ

    • Author(s)
      渡邊康平,鳥飼宏之,伊藤昭彦
    • Organizer
      日本機械学会東北支部第48 期秋季講演会
    • Place of Presentation
      青森県,八戸市
    • Related Report
      2012 Annual Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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