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Ieda, Yoshiaki; Chikazawa, Yoshitaka; Kotake, Shoji*
Proceedings of Jahrestagung Kerntechnik Annual Meeting on Nuclear Technology 2011 (DVD-ROM), 11 Pages, 2011/05
Even though international SFR circumstances were against, we kept on with our R&D steadily. As results, it has shown that commercialized SFR concept, Japan Sodium-cooled Fast Reactor (JSFR) could meet the targets. And Monju has restarted in May 2010. It is planned to be recovered for an incident on the in-vessel transfer machine aiming to 40% power operation. The undergoing FaCT project is pursuing commercialization of fast reactor cycle system around 2050 under cooperation of the government, utilities, venders and JAEA. In the FaCT Phase I, the key technologies for JSFR has been evaluated and the project is waiting for launching the phase II. Nevertheless the significance of nuclear energy will not be changed. We will focus on the issues learnt from the accidents on Fukushima Daiichi NPS and reflect its experiences into the safety design criteria for the next generation Fast Reactor systems.
Kotake, Shoji; Uto, Nariaki; Aoto, Kazumi; Kubo, Shigenobu*
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This paper describes the JSFR safety design features. It includes JSFR design accommodation of DBE, passive safety features against BDBE, and measures against CDA with an inner-duct fuel subassembly design and a multiple layer core catcher. This paper is also talking about safety guidelines, criteria and standards. Safety R&D plans and safety standards for future commercialized SFR are discussed briefly.
Aoto, Kazumi; Uto, Nariaki; Kotake, Shoji*
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The progress of the design study and the related R&D on JSFR which have been carried out in the FaCT project is presented. A compact reactor vessel is designed to pursue to enhance economical performance, and R&D for this design, such as optimization of the in-vessel hydraulics, is in progress, together with trying to reflect the results to the design. Trial manufacturing for the components of the double-walled tube SG and development of the under sodium viewing technology have been also performed. A plan of a large-scale sodium test complex has been started to demonstrate the innovative technologies for JSFR. Efforts have been made to explore the possibilities of sharing and/or collaborating in the development of the innovative technologies by an international cooperation.
Onda, Yuichi*; Kawano, Yasuchi*; Nagata, Yutaro*; Takahashi, Junko*; Sakakibara, Koichi*; Kato, Hiroaki*; Igarashi, Yasunori*; Niizato, Tadafumi
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