Phenomena

List of all phenomenologies available in the SADD

Phenomenology Name
investigate late phase melt progression processes in degraded fuel geometry. Specifically, the melting dynamics, molten pool formation and growth, and crust failure and migration through intact structure were investigated.
investigate the heatup and melt of dry reactor core debris to determine the thermal conductivity and melting kinetic behaviour of debris beds and dynamics of the formation and thermal characteristics of molten ceramic and/or metallic molten pools.
Investigate the retention of fission products by pool scrubbing focusing on the effect of pool depth and flow rate into the pool. Effect of pure water pool vs. caustic water pool. CsI is used as a surrogate to soluble aerosol, metallic Te as insoluble aerosol (B-1 tests) and I2 as gas.
Investigation of metallic melt drainage and blockage formation behaviour in BWR Short Term Station Blackout Accidents where Vessel Depressurization (Blowdown) has been activated
Investigation of the interaction of metallic melts with different types of concrete at industrial scale (~1000 kg).
Iodine behavior and retention within containment under reactor accident conditions. 4 intermediate scale tests investigate the effects of radiation, pH, surfaces and initial iodine speciation on iodine behavior.


Implemented as part of the Seaknot EU funded project (HORIZON-EURATOM-2021-NRT-01 under Grant Agreement No. 101060327) - WP2.6 UNIPI (2024-2026)