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ナトリウム冷却高速炉の炉心損傷事故時の制御棒材の共晶溶融挙動に関する研究,10; 安全解析コードで用いる共晶反応モデルの開発

Study on eutectic melting behavior of control rod materials in core disruptive accidents of sodium-cooled fast reactors, 10; Development of eutectic reaction model for use in reactor safety analysis code

Liu, X.*; 守田 幸路*; 山野 秀将   

Liu, X.*; Morita, Koji*; Yamano, Hidemasa

ナトリウム冷却高速炉の炉心損傷事故評価において炭化ホウ素制御棒材料とステンレス鋼の共晶溶融反応及び共晶溶融物の移動挙動を模擬するため、高速炉安全解析コードSIMMER-IIIで用いる物理モデルを開発した。また、既存の共晶溶融可視化実験を対象とした試計算によってその基本的な適用性を確認した。

A physical model used in a fast reactor safety analysis code, SIMMER-III, was developed in order to simulate a eutectic melting reaction and relocation behavior of boron carbide (B$$_{4}$$C) as a control rod material and stainless steel (SS) in core disruptive accidents of sodium-cooled fast reactors. In addition, basic applicability was confirmed with estimation for existing visualization experiments of eutectic melts.

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