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ナトリウム中における溶融炉心物質の微粒化距離に対する実験相関式の適用性検討

Applicability assessment of empirical correlations to the prediction of the distance for fragmentation of molten core materials in sodium

松場 賢一; 磯崎 三喜男; 豊岡 淳一; 神山 健司; Zuev, V.*; Kolodeshnikov, A.*

Matsuba, Kenichi; Isozaki, Mikio; Toyooka, Junichi; Kamiyama, Kenji; Zuev, V.*; Kolodeshnikov, A.*

ナトリウム冷却高速炉の炉心崩壊事故時に原子炉容器下部プレナムへ流出する溶融炉心物質の微粒化挙動を評価するため、溶融炉心模擬物質(溶融アルミナ)をナトリウム中に流出させた試験の結果に対し、微粒化距離に関する実験相関式を適用し、その妥当性を検討した。

In order to assess the fragmentation behavior of molten core material discharged into the lower sodium plenums during core disruptive accidents in sodium-cooled fast reactors, applicability of empirical correlations of the distance for fragmentation was investigated by comparing the values predicted using a correlation with the results obtained in the experiments where a simulated core material (molten alumina) was discharged into a sodium pool.

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