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※ 半角英数字
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Current status of FaCT (Fast Reactor Cycle Technology Development) project; JSFR (Japan Sodium-cooled Fast Reactor) design study and R&D progress

高速増殖炉実用化研究開発の現況; 先進ループ型ナトリウム冷却高速炉の設計研究及び研究開発の進捗

青砥 紀身 ; 宇都 成昭  ; 小竹 庄司*

Aoto, Kazumi; Uto, Nariaki; Kotake, Shoji*

FaCTで実施している先進ループ型ナトリウム冷却高速炉(JSFR)の設計及び関連R&Dの進捗について報告する。コンパクトな原子炉容器による経済性向上を追求し、そのために必要な炉内流動の適正化などのR&Dと設計への反映を進めている。信頼性向上のため、直管2重伝熱管蒸気発生器の機器試作やナトリウム中検査技術の開発も進めた。冷却系機器開発試験施設を用いてJSFRに導入する革新技術を実証する計画も開始した。国際協力を活用し、革新技術のR&Dを共同で実施する可能性についても探究している。

The progress of the design study and the related R&D on JSFR which have been carried out in the FaCT project is presented. A compact reactor vessel is designed to pursue to enhance economical performance, and R&D for this design, such as optimization of the in-vessel hydraulics, is in progress, together with trying to reflect the results to the design. Trial manufacturing for the components of the double-walled tube SG and development of the under sodium viewing technology have been also performed. A plan of a large-scale sodium test complex has been started to demonstrate the innovative technologies for JSFR. Efforts have been made to explore the possibilities of sharing and/or collaborating in the development of the innovative technologies by an international cooperation.

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