[1G08-11] Thermal Hydraulics of Sodium-Cooled Fast Reactors 1

[1G10] Development of multi-level, multi-scenario simulation systems for sodium cooled fast reactor

(16)Development of integrated analysis system for in- and ex-vessel phenomena

*Akihiro Uchibori¹, Mitsuhiro Aoyagi¹, Masateru Sonehara¹, Takashi Takata¹, Hiroyuki Ohshima¹ (1. JAEA)

Keywords:Sodium cooled fast reactor, Severe accident analysis, In-vessel phenomena, Ex-vessel phenomena

The multi-level, multi-scenario simulation systems have been developed as a fundamental technology of sodium cooled fast reactors. This paper provides the newly developed multi-scenario simulation system for in- and ex-vessel phenomena during a severe accident. The validity of the system was confirmed through the computation of the loss-of-reactor-level (LORL) accident.