Experimental studies on the upward fuel discharge for elimination of severe recriticality during core-disruptive accidents in sodium-cooled fast reactors
ナトリウム冷却型高速炉の炉心崩壊事故時における厳しい再臨界の排除のための溶融燃料上方向流出に関する実験研究
神山 健司; 小西 賢介; 佐藤 一憲; 豊岡 淳一; 松場 賢一; Zuyev, V. A.*; Pakhnits, A. V.*; Vityuk, V. A.*; Vurim, A. D.*; Gaidaichuk, V. A.*; Kolodeshnikov, A. A.*; Vassiliev, Y. S.*
Kamiyama, Kenji; Konishi, Kensuke; Sato, Ikken; Toyooka, Junichi; Matsuba, Kenichi; Zuyev, V. A.*; Pakhnits, A. V.*; Vityuk, V. A.*; Vurim, A. D.*; Gaidaichuk, V. A.*; Kolodeshnikov, A. A.*; Vassiliev, Y. S.*
Recently, a design option which leads molten fuel to upward discharge has been considered to minimize technical difficulties for practical application to JSFR. In the present study, a series of experiments which consisted of three out-of-pile tests and one in-pile test were conducted to investigate effectiveness of the upward discharge option on eliminating energetics potential. Experimental data which showed a sequence of upward fuel-discharge and effects of initial pressure conditions on upward-discharge were obtained through the out-of-pile and in-pile test. Preliminary extrapolation of the present results to the supposed condition in early phase of the CDA in the JSFR design, suggested that sufficient upward flow rate of molten-fuel was expected to prevent the core-melting from progressing beyond the fuel subassembly scale and that the upward discharge option would be effective in eliminating the energetic potential.
使用言語 : English
掲載資料名 : Journal of Nuclear Science and Technology
: 51
: 9
ページ数 : p.1114 - 1124
発行年月 : 2014/09
出版社名 : Taylor & Francis
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論文解説記事
(成果普及情報誌)
: 高速炉の安全性向上を目指して; 燃料集合体が溶けて流出する挙動を実験的に確認[/]
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登録番号 : AA20130469
抄録集掲載番号 : 42000877
論文投稿番号 : 14534
Accesses  (From Jun. 2, 2014)
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パーセンタイル:76.33
分野:Nuclear Science & Technology
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