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Studies on the self-leveling behavior of debris beds are crucial for the assessment of core-disruptive accident occurred in sodium-cooled fast reactors(SFRs). Though until now some overall characteristics of the self-leveling behavior have been preliminarily revealed by previous investigators, insufficient experimental evidence has been given in support of their claims. In addition, limitations of previously developed models for self-leveling onset have urged their improvement, especially on transient self-leveling behavior. Focusing on these aspects, the present work aims to further...

This book highlights the advances and trends in the safety analysis of sodium-cooled fast reactors, especially from the perspective of particle bed-related phenomena during core disruptive accidents. A sodium-cooled fast reactor (SFR) is an optimized candidate of the next-generation nuclear reactor systems. Its safety is a critical issue during its R&D process. The book elaborates on research progresses in particle bed-related phenomena in terms of the molten-pool mobility, the molten-pool sloshing motion, the debris bed formation behavior, and the debris bed self-leveling behavior. The book...

This book highlights the advances and trends in the safety analysis of sodium-cooled fast reactors, especially from the perspective of particle bed-related phenomena during core disruptive accidents. A sodium-cooled fast reactor (SFR) is an optimized candidate of the next-generation nuclear reactor systems. Its safety is a critical issue during its R&D process. The book elaborates on research progresses in particle bed-related phenomena in terms of the molten-pool mobility, the molten-pool sloshing motion, the debris bed formation behavior, and the debris bed self-leveling behavior. The book...