Author/Authors :
Fontaine، نويسنده , , B. and Prulhière، نويسنده , , G. and Vasile، نويسنده , , A. and Masoni، نويسنده , , P. and Barret، نويسنده , , P. and Rochwerger، نويسنده , , D. and Gros، نويسنده , , J. and Dupraz، نويسنده , , R. and Moussallam، نويسنده , , N. and Chassignet، نويسنده , , M.، نويسنده ,
Abstract :
In order to study the core compaction of an authentic sodium-cooled fast reactor and the neutronic consequences of its modification, core flowering tests were performed in the PHENIX reactor within the context its 2009 end-of-life tests. A dedicated in-pile device was designed and manufactured to actuate fuel assemblies and generate mechanical core flowering. During the test, which was performed under different temperature conditions, assembly displacements, flowering forces and reactivity signals were recorded. The mechanical analysis of these results indicates that core compaction seems to be dependent on temperature. The evolution of reactivity with flowering remains negative, even if the flowering source is located in external core.
