年次大会
Online ISSN : 2424-2667
ISSN-L : 2424-2667
セッションID: S081-04
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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
プロジェクト全体概要及び令和4年度までの進捗
*山野 秀将高井 俊秀江村 優軌福山 博之西 剛史守田 幸路中村 勤也Marco Pellegrini
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It is necessary to simulate a eutectic reaction and relocation behavior of boron carbide (B4C) as a control rod material and stainless steel (SS) during a core disruptive accident (CDA) in an advanced sodium-cooled fast reactor designed in Japan. On that account, Japan Atomic Energy Agency with academic/industrial partners have been conducting a research project consisting of thermophysical property measurement of the B4C-SS eutectic melt, B4C-SS eutectic melting and relocation experiments, eutectic reaction mechanism investigation, and physical model development for a CDA simulation code and its reactor application. This project has accomplished the development of a basic physical model to simulate the B4C-SS eutectic reaction in Phase 1. The objective of Phase 2 (2020-2024) is to upgrade the physical model for the improvement of reactor analysis accuracy. The model improvement is characterized by implementing a variable B4C mass fraction for the B4C-SS eutectic material. This paper describes the project overview and progress until JFY2022.

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