Conceptual Design of Innovative Water Reactor for Flexible Fuel Cycle (FLWR) and its Recycle Characteristics
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概要
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A concept of Innovative Water Reactor for Flexible Fuel Cycle (FLWR) has been proposed based on the well-experienced Light Water Reactor (LWR) technologies. The concept aims at effective and flexible utilization of the uranium and plutonium resources through the plutonium multiple recycling by the two stages. In the first stage, the FLWR core realizes a high conversion type core concept, which is basically intended to keep the smooth technical continuity from the current LWR and coming MOX-LWR technologies without significant gaps in technical point of view. The core in the second stage represents the Reduced-Moderation Water Reactor (RMWR) core concept, which realizes a high conversion ratio over 1.0, being useful for the long-term sustainable energy supply through the plutonium multiple recycling. The FLWR is a BWR-type reactor, and its core design is characterized by the short flat core, which consists of hexagonal-shaped fuel assemblies in the triangular-lattice fuel rod configuration with the highly enriched MOX fuel and Y-shaped control rods. The cores in both stages utilize the compatible and the same size fuel assemblies, and hence during the reactor operation period, the former concept can proceed to the latter in the same reactor system, corresponding flexibly to the expected change in the future circumstances of the natural uranium resource or establishment of an economical reprocessing technology of the MOX spent fuel.Detailed investigations have been performed on the core design, in conjunction with the other related studies, and the results obtained so far have shown the proposed concept is feasible and promising.
- 社団法人 日本原子力学会の論文
- 2007-03-25
著者
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OKUBO Tsutomu
Japan Atomic Energy Agency
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NAKANO Yoshihiro
Japan Atomic Energy Agency
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KUGO Teruhiko
Japan Atomic Energy Agency
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IWAMURA Takamichi
Japan Atomic Energy Research Institute
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Ohnuki Akira
Japan Atomic Energy Research Institute
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Ohnuki Akira
Japan Atomic Energy Agency
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Akie Hiroshi
Japan Atomic Energy Agency
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Kugo Teruhiko
Nuclear Sci. And Engineering Directorate Japan Atomic Energy Agency
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UCHIKAWA Sadao
Japan Atomic Energy Agency
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TAKEDA Renzo
Hitachi Ltd.
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Iwamura Takamichi
Japan Atomic Energy Agency
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TAKEDA Renzo
Hitachi Atomic Energy Research Laboratory, Hitachi, Ltd.
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