The ASTRID core at the midterm of the conceptual design phase (AVP2)

Abstract : Within the framework of the French ASTRID project, core design studies are being conducted by the CEA with support from AREVA and EDF. The design studies include the GEN IV reactor objectives, particularly in terms of improving safety. Options selection was performed at the conclusion of the pre-conceptual design phase. The CFV core was confirmed as the reference core for the ASTRID project. The design route of the core has been reoriented for the conceptual design phase of the ASTRID project (Limitation of the core diameter, innovative options of control and shutdown architecture, introduction of complementary safety devices for prevention and mitigation of severe accidents, choice of S/A internal storage instead of external storage, neutron shielding on the inner vessel components). A new version of the CFV core (CFV V3) which integrates these above options was proposed at the end of 2013. This paper describes the main characteristics and performances of the CFV V3 core. It particularly focuses on the design studies of internal storage.