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※ 半角英数字
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原子力の安全性向上に対する熱流動研究の貢献,3; ナトリウム冷却高速炉開発の今; 開発プロセスの変革に向けて

Contribution of thermal hydraulics study for enhancement of nuclear plant safety, 3; Present status of sodium-cooled fast reactor development; To realize the innovation of development process

田中 正暁  

Tanaka, Masaaki

原子力機構では、安全性向上等の革新的技術開発によるカーボンニュートラルへの貢献として、高速炉・核燃料サイクルに係る研究開発を進めている。原子力機構の役割である技術基盤維持・発展・提供するため、これまでに高速炉開発で培った幅広い知識を活用し、革新的プラント概念創出や開発プロセス変革を可能にする統合評価手法「ARKADIA」の整備を進めている。本報では、ナトリウム冷却高速炉の開発状況と、ARKADIAの一部として、設計評価に関わるARKADIA-Designにおける熱流動関連課題への取り組みの現状について紹介する。

Japan Atomic Energy Agency (JAEA) is promoting research and development (R&D) related to fast reactors and nuclear fuel cycles as a contribution to carbon neutrality through the investigation of innovative technologies such as safety improvement. In order to maintain, develop, and provide the technological infrastructure for nuclear power plant innovation, that is the role of JAEA, an integrated evaluation method "ARKADIA" is under development to create innovative plant concepts and reform of the development process utilizing the wide range of knowledge cultivated through the development of fast reactors in JAEA. This presentation introduces the current status of development of sodium-cooled fast reactors and the ARKADIA-Design as a part of ARKADIA for design optimization support to address the R&Ds on thermal-hydraulics-related issues for design evaluation.

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