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Conceptual design for a large-scale Japan sodium-cooled fast reactor, 1; Feasibility of key technologies

JSFR大型炉の概念設計,1; 革新技術の採否

近澤 佳隆 ; 青砥 紀身 ; 早船 浩樹; 大野 裕司; 小竹 庄司; 戸田 幹雄*; 伊藤 隆哉*

Chikazawa, Yoshitaka; Aoto, Kazumi; Hayafune, Hiroki; Ono, Yushi; Kotake, Shoji; Toda, Mikio*; Ito, Takaya*

FaCTフェーズIにおいてナトリウム冷却炉の革新技術採否判断を実施した。ホットベッセル,2ループ,ポンプ組込中間熱交換器,高信頼性SG,自然循環崩壊熱除去系,保守補修性改良について技術的成立性を確認した。FaCTフェーズIIでは採用された技術に基づき実証炉の概念設計に着手する。

Key technologies for Japan Sodium-cooled Fast Reactor (JSFR) has been evaluated. The hot vessel, two-loop cooling system using high chromium steel, integrated intermediate heat exchanger/pump component, highly reliable steam generator, natural circulation decay heat removal system and improved in-service inspection and repair capability have been confirmed to be feasible as development items for the next stage.

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