Numerical investigation of ALFRED under seismic scenario

The European project ANSELMUS focuses on the safety of advanced Heavy Liquid Metal (HLM) cooled reactors, including ALFRED, developed by the FALCON consortium, The reactor's operation progresses through three power levels (100, 200, and 300 MWth), requiring significant preliminary R&D efforts. The first ANSELMUS WP includes a Phenomena Identification Ranking Table (PIRT) analysis on ALFRED to prioritize R&D activities starting with ALFRED's reference design, selecting accidental transients to enhance the understanding of critical quantities known as FoMs (Figure of Merits). Supporting numerical analyses are executed within the same project. This paper examines core compaction following a seismic scenario using a detailed nodalization developed with the RELAP5 system code.