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Progress of sodium-cooled fast reactor developments in Japan taking into account total lifecycle, risk-informed approach, and sustainability

日本におけるプラントライフサイクル、リスクインフォームドアプローチ、持続可能性を考慮したナトリウム冷却高速炉開発の進捗

上出 英樹 ; 浅山 泰 ; 若井 隆純 ; 江連 俊樹 ; 内堀 昭寛 ; 久保 重信 ; 竹内 正行 

Kamide, Hideki; Asayama, Tai; Wakai, Takashi; Ezure, Toshiki; Uchibori, Akihiro; Kubo, Shigenobu; Takeuchi, Masayuki

本報告では、設計支援解析評価手法の開発を通じて、プラントライフサイクル、リスクインフォームドアプローチ、持続可能性を考慮した日本のナトリウム冷却高速炉開発の進捗について、ARKADIAライフサイクル評価・設計支援システム、シビアアクシデント、自然循環、ナトリウム化学反応を対象とする安全設計・評価、リスクインフォームドアプローチをベースとした新しい規格基準体系、燃料サイクル技術の開発にかかる成果をまとめた。

A sodium cooled fast reactor (SFR) is one of the most relevant and decarbonized energy supply system with higher sustainability on natural resources, footprint, and waste management. It was planned in a strategic roadmap of fast reactor decided by Inter-Ministerial Council for Nuclear Power Japan in 2022 to start a conceptual design of a demonstration reactor from 2024 with a background of accumulated knowledge and experiences of SFR development. For example, a design and lifecycle simulation/evaluation system named ARKADIA has been developed to accelerate such design works. It will enable to take into account plant lifecycle, e.g., operation and maintenance, to the plant design and optimize it based on simulations and knowledgebase. This paper shows research progresses of ARKADIA, safety design and evaluations, codes and standards, fuel cycle, and SFR development projects in Japan.

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分野:Nuclear Science & Technology

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