Recent analyses of PHENIX End of Life Tests and perspectives
Résumé
This paper presents the recent analyses of Phénix End of Life tests performed with the most advanced modelling developments, and a global assessment of the campaign. The following items are specifically touched upon: core decay heat removal measurement and associated uncertainties, natural convection in reactor vessel using coupled system and CFD models, and neutronic/mechanical behaviour of the core during flowering test.
Finally, it appears that the Phénix decay heat measurement test can be added to the validation basis of DARWIN code associated to JEFF3.1.1. The discrepancies with experimental data are weak (under +/-8%) and globally covered by uncertainties. Concerning the primary natural convection test, the use of a CFD/system coupled calculation allows to model very accurately the sodium temperatures during the transient. The behaviour of the core during static flowering test can be well estimated by using HARMONIE code for mechanical aspects and TRIPOLI for neutronics. A new test is scheduled in Phénix to assess the core mechanics code in case of dynamic load
Domaines
Sciences de l'ingénieur [physics]| Origine | Fichiers produits par l'(les) auteur(s) |
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