主催: 一般社団法人 日本機械学会
会議名: 2023年度 年次大会
開催日: 2023/09/03 - 2023/09/06
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.
