TPCF Benchmark Report - Summary and Conclusions

Section 2 - Tests for code-to-code comparison Comments from J.L. Vacher and D. Bestion considered Some improvements and further check performed by M. Lanfredini KAERI calculations, UNIPI calculations, containment simulator pressure behavior, …. Section 3.1 - Super CANON experiment Issue in Apros nodalization identified and addressed. The same issue may affect COSINE model Calculations not repeated (Edwards pipe experiment is sufficient to support the main conclusions) Comments from D. Bestion considered Section 3.2 - Edwards pipe experiment No major comments Section 3.3 - Comments on SUPERCANON and Edwards pipe tests (transient tests) Section added to the report Codes can capture the qualitative behavior rather well but are never very precise quantitatively Code which use fine 1D modelling of critical flow cannot expect to improve significantly such predictions Codes which use a 0-D choked flow modeling may just conclude about the relative merits of the various choked flow options