Status of steam explosion understanding and modelling

R. Meignen (Corresponding Author), B. Raverdy, M. Buck, G. Pohlner, P. Kudinov, W. Ma, C. Brayer, P. Piluso, S.-W. Hong, M. Leskovar, M. Ursic, G. Albrecht, Ilona Lindholm, I. Ivanov

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    Abstract

    The main results of the major international activities related to fuel-coolant interactions (FCI) of the last 4-year period are presented and a summary of the knowledge gained regarding understanding and the improvements of modelling is provided. At first, the major outcomes of the OECD SERENA-2 program are presented and discussed. Important clarifications were obtained on the so-called material effect and on FCI code capabilities. We then summarise complementary analytical analyses and experimental programs performed in the frame of the SARNET community. The focus was put on the role of melt fragmentation and solidification, the impact of void on the intensity of an explosion and the triggering mechanisms. As a conclusion, tables summarising the improvements are proposed as well as research priorities
    Original languageEnglish
    Pages (from-to)125-133
    JournalAnnals of Nuclear Energy
    Volume74
    DOIs
    Publication statusPublished - 2014
    MoE publication typeA1 Journal article-refereed
    Event6th European Review meeting on Severe Accident Research, ERMSAR-2013 - Avignon, France
    Duration: 2 Oct 20134 Oct 2013
    Conference number: 6

    Keywords

    • nuclear power plants
    • steam explosions
    • fuel-coolant interaction
    • SERENA-2
    • SARNET

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    Meignen, R., Raverdy, B., Buck, M., Pohlner, G., Kudinov, P., Ma, W., Brayer, C., Piluso, P., Hong, S-W., Leskovar, M., Ursic, M., Albrecht, G., Lindholm, I., & Ivanov, I. (2014). Status of steam explosion understanding and modelling. Annals of Nuclear Energy, 74, 125-133. https://doi.org/10.1016/j.anucene.2014.07.008