Pressure Drop Characteristics in Tight-Lattice Bundles for Reduced-Moderation Water Reactors(<Special Issue>International Conferences on Power and Energy System)
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概要
- 論文の詳細を見る
The reduced-moderation water reactor (RMWR) consists of several distinctive structures; a triangular tight-lattice configuration and a double-flat core. In order to design the RMWR core from the point of view of thermal-hydraulics, an evaluation method on pressure drop characteristics in the rod bundles at the tight-lattice configuration is required. In this study, calculated results by the Martinelli-Nelson's and Hancox's correlations were compared with experimental results in 4×5 rod bundles and seven-rod bundles. Consequently, the friction loss in two-phase flows becomes smaller at the tight-lattice configuration with the hydraulic diameter less than about 3mm. This reason is due to the difference of the configuration between the multi-rod bundle and the circular tube and due to the effect of the small hydraulic diameter on the two-phase multiplier.
- 一般社団法人日本機械学会の論文
- 2004-05-15
著者
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TAMAI Hidesada
Japan Atomic Energy Research Institute
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Tamai Hidesada
Japan Atomic Energy Agency
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Akimoto Hajime
Japan Atomic Energy Agency
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Akimoto H
Japan Atomic Energy Res. Inst. Ibaraki
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Akimoto Hajime
Frontier Research System For Global Change
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KURETA Masatoshi
Japan Atomic Energy Agency
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YOSHIDA Hiroyuki
Japan Tobacco Inc. Applied Plant Research Center
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Yoshida Hiroyuki
Japan Atomic Energy Agency Nuclear Science And Engineering Directorate
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Yoshida Hiroyuki
Japan Atomic Energy Research Institute
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Yoshida Hiroyuki
Japan Atomic Energy Agency
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