Facility Details: STYX

Organization / Localization: VTT
Country: Finland
Facility Description: uniform and axially stratified debris beds were tested with system pressures in the range range 0.1 to 0.7 Mpa
SA-Related Topics / Phenomena: coolability of porous beds consisting of irregular alumina particles (0.25-10 mm, locally well-mixed) under top reflooding conditions broadly representative of the lower head of a Nordic BWR pressure vessel
References: [1] Lindholm, I., Holmström, S., Miettinen, M., Lestinen, V., Hyvärrinen, J., Pankakoski, P.,Sjövall, H., 2006. Dryout heat flux experiments with deep heterogeneous particle bed. Nucl. Eng. Des. 236, 2060–2074. [2] Holmström, S., Kinnunen, T., Pankakoski, P., Hosio, E., 2008. STYX dry-out heat flux testing with lateral coolant inflow. In: Research Report, VTT-R-06910-08. VTT Technical Research Centre of Finland, December. [3] Takasuo, E., Holmström, S., Kinnunen, T., Pankakoski, P.H., Hosio, E., Lindholm, I., 2011. The effect of lateral flooding on the coolability of irregular core debris beds, Nucl. Eng. Des. 241, 1196–1205.
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Implemented as part of the Seaknot EU funded project (HORIZON-EURATOM-2021-NRT-01 under Grant Agreement No. 101060327) - WP2.6 UNIPI (2024-2026)