Study on tritium behavior in concrete in concrete walls

• Project/Area Number: 18360444
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear fusion studies
• Research Institution: Kyushu University
• Principal Investigator: NISHIKAWA Masabumi Kyushu University, 名誉教授 (90026229)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥11,420,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥1,320,000); Fiscal Year 2008: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2007: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000); Fiscal Year 2006: ¥5,700,000 (Direct Cost: ¥5,700,000)
• Keywords: 燃料 / ブランケット / 核融合炉 / トリチウム / 安全閉じ込め / コンクリート / 同位体交換反応 / 拡散・透過 / 拡散透過

Research Abstract

核融合炉等の大量のトリチウムを使用する施設ではその最外郭に非常時トリチウム回収システムを備えたコンクリート製の建屋が用いられる。従って核融合炉のトリチウム安全対策を保障するためにはコンクリート壁でのトリチウムの透過・移行挙動を移動現象論的に把握しておかねばならない。コンクリートの主成分はセメントペーストと砂利および小石であるがその構造の中に多くの水を保持する親水性の多孔質体であるので、申請者が固体増殖材中のトリチウム挙動解明のために構築した吸着、同位体交換反応、拡散等の諸現象の集約としてのモデルを応用して世界で初めてのコンクリート中のトリチウム移行モデルを作り上げ、必要な諸特性を実験で求めた。シミュレーションの結果は実験データと良好な一致を示した。

Research Products

• [Journal Article] Concentration profile of tritium penetrated into concrete (2008)
  • Author(s): H. Takata, K. Furuichi, M. Nishikawa, et al.
  • Journal Title: Fusion Science and Technology Vol.54 Pages: 223-226
  • Peer Reviewed
• [Journal Article] The effect of water on tritium release behavior from solid breeder (2008)
  • Author(s): K. Suematsu, M. Nishikawa, et al.,
  • Journal Title: Fusion Science and Technology Vol.54 Pages: 561-564
  • Peer Reviewed
• [Journal Article] Concentration Profile of Tritium Penetrated into Concrete (2008)
  • Author(s): H. Takata, K. Furuici, M. Nishikawa, et al.
  • Journal Title: Fusion Science and Technology 54 Pages: 223-226
  • Peer Reviewed
• [Journal Article] The Effect of Water on Tritium Release Behavior from Solid Breeder (2008)
  • Author(s): K. Suematsu, M. Nishikawa, et al.
  • Journal Title: Fusion Science and Technology 54 Pages: 561-564
  • Peer Reviewed
• [Journal Article] Evaluation of tritium behavior in concrete (2007)
  • Author(s): K. Furuichi, H. Takata, K. Katayama, M. Nishikawa, et al.
  • Journal Title: Journal of Nuclear Materials Vol.360-370 Pages: 1243-1247
  • Peer Reviewed
• [Journal Article] Evaluation of tritium behavior in concrete (2007)
  • Author(s): K. Furuichi, H. Takata, K. Katayama, M. Nishikawa, et. al.
  • Journal Title: Journal of Nuclear Materials 360-370 Pages: 1243-1247
  • Peer Reviewed
• [Journal Article] HTO electrolysis method by using proton exchange membrane fuel cell (2007)
  • Author(s): H. Takata, M. Nishikawa, T. Egawa, N. Mizuno
  • Journal Title: Journal of Nuclear Materials 367-370 Pages: 1102-1106
  • Peer Reviewed
• [Journal Article] Study on permeation behavior of gaseous tritium through concrete walls (2006)
  • Author(s): M. Nishikawa, K. Furuichi, H. Takata
  • Journal Title: Fusion Science and Technology Vol.50 Pages: 521-527
  • Peer Reviewed
• [Journal Article] Study on behavior of tritium in concrete wall (2006)
  • Author(s): K. Furuichi, H. Takata, M. Nishikawa
  • Journal Title: Journal of Nuclear Materials Vol.350 Pages: 246-253
  • Peer Reviewed
• [Journal Article] Study on permeation behavior of gaseous tritium through concrete walls. (2006)
  • Author(s): M.Nishikawa, K.Furuichi, H.Takata
  • Journal Title: Fusion Science and Technology Vol.50 Pages: 521-527
• [Journal Article] Study on behavior of tritium in concrete wall. (2006)
  • Author(s): K.Furuichi, H.Takata, T.Motoshima, S.Satake, M.Nishikawa
  • Journal Title: Journal of Nuclear Materials Vol.350 Pages: 246-253
• [Presentation] Concentration profile of tritium penetrated into concrete (2007)
  • Author(s): H. Takata, K. Furuichi, M. Nishikawa, et al.
  • Organizer: 8^<th> International Conference on Tritium Science and Technology
  • Place of Presentation: Rochester, NY, USA
  • Year and Date: 2007-09-20
• [Presentation] Concentration profile of tritium penetrated into Concrete (2007)
  • Author(s): H. Takata, K. Furuichi, M. Nishikaw, et. al.
  • Organizer: 8^<th> International Conference on Tritium Science and Tecnology
  • Place of Presentation: Rochester, NY, USA
  • Year and Date: 2007-09-20
• [Book] 水素-将来のエネルギーを目指して- (2006)
  • Author(s): 西川正史、深田智、渡辺幸信
  • Total Pages: 310
  • Publisher: 養賢堂
• [Book] 水素-将来のエネルギーを目指して- (2006)
  • Author(s): 西川正史, 深田智, 渡辺幸信
  • Total Pages: 310
  • Publisher: 養賢堂