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第4世代原子炉の開発動向,2; 高温ガス炉

The Development status of Generation IV reactor systems, 2; High temperature gas-cooled reactor (HTGR)

國富 一彦; 西原 哲夫; Yan, X.; 橘 幸男; 柴田 大受

Kunitomi, Kazuhiko; Nishihara, Tetsuo; Yan, X.; Tachibana, Yukio; Shibata, Taiju

優れた安全性を有し、950$$^{circ}$$Cの高温熱が取り出せる黒鉛減速ヘリウム冷却型の熱中性子炉である高温ガス炉は、二酸化炭素の排出削減を目的に、発電以外の多様な産業における熱利用が期待されている。日本原子力研究開発機構では、高温工学試験研究炉(HTTR)により高温ガス炉の安全性を実証するとともに、熱利用系の実証に向けた研究開発を進めている。また、産官学と連携して我が国の高温ガス炉技術の国際展開に向けた活動を進めている。本報では、高温ガス炉に関する研究開発の状況及び国内外との協力について紹介する。

High temperature gas-cooled reactor (HTGR) is a graphite-moderated and helium-gas-cooled thermal-neutron reactor that has excellent safety features and can produce high temperature heat of 950$$^{circ}$$C. It is expected to use for various heat applications as well as for electricity generation to reduce carbon dioxide emission. Japan Atomic Energy Agency (JAEA) has been promoted research and development to demonstrate the HTGR safety features using High temperature engineering test reactor (HTTR) and it's heat application. JAEA are also conducting the action to international deployment of Japanese HTGR technologies in cooperation with industries-government-academia. This paper reports status of the research and development of HTGR and domestic and international collaborations.

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