Current status and future prospect of light water reactor Accident-Tolerant Fuels (ATF) R&D in Japan

日本における軽水炉事故耐性燃料の研究開発の現状と将来展望

山下 真一郎   ; 根本 義之  ; 井岡 郁夫  ; 逢坂 正彦  ; 川西 智弘; 加治 芳行  

Yamashita, Shinichiro; Nemoto, Yoshiyuki; Ioka, Ikuo; Osaka, Masahiko; Kawanishi, Tomohiro; Kaji, Yoshiyuki

福島第一原子力発電所事故を教訓に、冷却材喪失等の過酷条件においても損傷しにくく、高い信頼性を有する新型燃料の開発への関心が高まり、世界中の多くの国々において事故耐性を高めた新型燃料(ATF: Accident Tolerant Fuel)の研究開発が進められている。本プレゼンテーションでは、パネルディスカッションの目的に照らして、これまで国内で進めてきたATF開発の状況、研究開発を通じて得た科学的知見を紹介し、米国や中国のパネリストらとともにATFを実機導入するまでの技術的課題等について議論する。

After the nuclear accident at Fukushima Daiichi power plant, global interest has expanded in exploring fuels with enhanced performance during severe accident, and enhancing the accident tolerance of light water reactors (LWRs) became a topic of serious discussion all over the world. In this panel session, the state-of-art knowledge and the latest development status of ATF from the point of view of industry, government, nonprofit research agencies, and academic representatives currently leading global ATF development will be presented and discussed. The significant challenges in development and implementation of ATF, such as large scale ATF fabrication, acceptance by nuclear utilities, the role of government and inter-government agencies in ATF research oversight, and the engineering and scientific challenges to develop ATF will be presented.