OS8-01 セラミックス絶縁耐熱コイルを用いた内蔵CRD等に関する技術開発 : (1)駆動機構の開発と次世代炉への適用(OS8 軽水炉・新型炉・核燃料サイクル)

概要

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In order to develop a competitive and higher performance Next Generation BWR compared with a fossil power plant, an internal CRD using a heatproof ceramics insulated coil is under development. In case of a 1700MWe next generation BWR, the internal CRDs are installed in a RPV whose size is equivalent to the 1356MWe ABWR, and there will be no space required for CRDs and CRD exchange under RPV These advantages realize a compact PCV and reduced volume of a reactor building. Moreover, the internal CRDs eliminate penetration via a bottom flange of RPV, and lower installation level of RPV in a drywell. This brings further advantages of elimination of RIA (Reactivity Induced Accidents) caused by CR withdrawing under pressure boundary broken, and easy IVR (In Vessel Retention) by vessel bottom cooling in case of severe accidents. An internal CRD using a heatproof ceramics insulated coil is under development to be a competitive and higher performance as Next-Generation BWR. In the case of the 1700MWe next generation BWR, adapting the internal CRDs, the reactor pressure vessel is almost equivalent to that of 1356 MWe ABWR. This program is conducted as one of the selected offers for the advertised technical developments of the Institute of Applied Energy founded by METI (Ministry of Economy, Trade and Industry) of Japan.
社団法人日本機械学会の論文
2005-06-28