[2C12-15] Advanced Reactor Design

4:20 PM - 4:35 PM JST(7:20 AM - 7:35 AM UTC)

[2C15] Optimization of transition phase in sodium-cooled nitride fuel RFBB

*Yuichiro Zushi¹, Toru Obara¹ (1. Tokyo Tech)

Keywords:

Fast reactor,RFBB,nitride fuel,sodium-cooled,core characteristics

A sodium-cooled nitride fuel RFBB core that achieves criticality from the start-up was designed and clarified that it was possible to optimize excess reactivity by adjusting initial fuel enrichment. Additionally, each parameter was analyzed to confirm the safety feature of the reactor.