Analysis of an Out-of-pile Experiment for Materials Redistribution under Core Disruptive Accident Condition of Fast Breeder Reactors

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著者

    • SAWADA Tetsuo
    • Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
    • NINOKATA Hisashi
    • Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
    • SHIMIZU Akinao
    • Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology

抄録

Calculation of one of the SIMBATH experiments was performed using the SIMMER-II code. The experiments were intended to simulate the fuel pin disintegration, the molten materials relocation and following materials redistribution that could occur during core disruptive accidents assumed in fast breeder reactors. The calculation by SIMMER-II showed that the incorporated step-wise fuel pin disintegration model and the modified particle jamming model were capable of reproducing the course of materials relocation within the identified ranges of the parameters which governed the blockages formation, i.e. the characteristic radius of solid particles jamming and/or sieving out in the flow and the effective particle viscosity. In particular the final materials redistribution calculated by SIMMER-II very well reproduced the experiment. This fact made it possible to interpret theoretically the mechanisms of flow blockages formation and related materials redistribution.

収録刊行物

  • Journal of nuclear science and technology  

    Journal of nuclear science and technology 32(6), 584-595, 1995-06-25 

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002072815
  • NII書誌ID(NCID)
    AA00703720
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00223131
  • データ提供元
    CJP書誌  CJP引用  J-STAGE 
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