Current European Experiments on 2D Molten Core Concrete Interaction: HECLA and VULCANO

Christophe Journeau, Jean Michel Bonnet, Eric Boccaccio, Pascal Piluso, Tuomo Sevon, Pekka H. Pankakoski, Stefan Holmström, Jouko Virta

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    2 Citations (Scopus)

    Abstract

    This paper presents results from two ongoing European experimental programs on molten core concrete interactions: HECLA at VTT and VULCANO at CEA. In the HECLA experiments, metallic melt is poured into a cylindrical concrete crucible. The focus is on the initial, pouring phase of the interaction. Therefore, decay heat simulation is not required. The HECLA-2 experiment involved 50 kg of stainless steel at 1700 °C and siliceous concrete. The final ablation depths were 25-30 mm in the basemat and about 15 mm in the sidewall. The VULCANO VB experiments have been devoted to the study of the interaction of 28 to 45 kg of oxidic corium with silica-rich or limestone-rich concretes. These tests are focusing on long-term ablation and require the use of induction heating to simulate the decay heat fluxes. Anisotropic ablation between the horizontal and vertical direction has been observed with silica-rich concrete, confirming the CCI tests. A new series of experiments VULCANO VBS has been launched in which there are both oxide and metallic phases in the melt. In these tests, magnetic screening is used so that the induction power is provided almost only to the upper oxidic layer after stratification.
    Original languageEnglish
    Title of host publicationProceedings of ICAPP '08: The 2008 International Congress on Advances in Nuclear Power Plants
    Subtitle of host publicationEmbedded topical meeting
    PublisherAmerican Nuclear Society ANS
    Pages1241-1250
    ISBN (Print)0-89448-061-8
    Publication statusPublished - 2008
    MoE publication typeA4 Article in a conference publication
    Event2008 International Congress on Advances in Nuclear Power Plants, ICAPP 2008 - Anaheim, United States
    Duration: 8 Jun 200812 Jun 2008

    Conference

    Conference2008 International Congress on Advances in Nuclear Power Plants, ICAPP 2008
    Abbreviated titleICAPP 2008
    CountryUnited States
    CityAnaheim
    Period8/06/0812/06/08

    Keywords

    • nuclear power
    • severe accidents
    • MCCI
    • HECLA
    • VULCANO

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  • Cite this

    Journeau, C., Bonnet, J. M., Boccaccio, E., Piluso, P., Sevon, T., Pankakoski, P. H., Holmström, S., & Virta, J. (2008). Current European Experiments on 2D Molten Core Concrete Interaction: HECLA and VULCANO. In Proceedings of ICAPP '08: The 2008 International Congress on Advances in Nuclear Power Plants: Embedded topical meeting (pp. 1241-1250). American Nuclear Society ANS.