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Conceptual design of small-sized high temperature gas-cooled reactor system for electricity generation and district heating

熱電併給高温ガス炉システムの概念設計

春日 章二*; 久保田 健一*; 岡本 太志*; 前川 勇*; 降旗 昇*; 斎藤 正直*; 城戸 裕治*; 大橋 弘史 ; 橘 幸男 ; 國富 一彦 

Kasuga, Shoji*; Kubota, Kenichi*; Okamoto, Futoshi*; Maekawa, Isamu*; Furihata, Noboru*; Saito, Masanao*; Kido, Yuji*; Ohashi, Hirofumi; Tachibana, Yukio; Kunitomi, Kazuhiko

原子力新興国での利用に適する熱電供給高温ガス炉システムの概念設計として、国内メーカーと共同でシステムの基本仕様及び炉心仕様を決定するとともに、ヒートマスバランス計算を行い、系統仕様を決定した。また、炉心核熱流動設計を行い、HTTRと比較して、約1.4倍の出力密度、約1.5倍の燃焼度と2年間の長期連続運転を1/4の濃縮度数で 実現できる炉心を決定した。

Conceptual design of a small-sized HTGR for electricity generation and district heating has been conducted by JAEA with support of Japanese vendors: Toshiba Corporation, Fuji Electric, Kawasaki Heavy Industries, Nuclear Fuel Industries, Shimizu Corporation, and Marubeni Utility Services. System design as well as nuclear design of the first core of HTR50S using the same CFPs as the HTTR has been performed and the nuclear design shows upgraded performance of the reactor compared with the HTTR.

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