Development of three-dimensional space dependent kinetics code IBIS and analysis of transient behavior of LMFBR cores.
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概要
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A three-dimensional nuclear and thermo-hydrodynamic kinetics calculation code IBIS has been developed, envisaging the treatment of asymmetrical reactivity changes in a large fast breeder reactor. An example of calculation with this code is described, which reveals a difference of void propagation behavior, following a local disturbance, between homogeneous and heterogeneous cores, ascribable to the presence, in the latter case, of inner blanket layers, which act as barrier against void propagation. Of the two parameters of power-to-flow ratio and space-time variation in thermal power, the latter is the more influential on void propagation, and this makes it essential to perform three-dimensional space-dependent kinetic analysis for adequately simulating local perturbations in a heterogeneous core.
- 一般社団法人 日本原子力学会の論文
著者
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Oka Yoshiaki
Nuclear Engineering Research Laboratory Graduate School Of Engineering The University Of Tokyo
-
AN Shigehiro
Nuclear Engineering Research Laboratory, Faculty of Engineering, University of Tokyo
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KONDO Shunsuke
Nuclear Engineering Research Laboratory, Faculty of Engineering, University of Tokyo
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KONOMURA Mamoru
Nuclear Engineering Research Laboratory,Faculty of Engineering, University of Tokyo
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