[1K08-11] Fast Reactor 2

[1K10] Impact of Fuel and Coolant Material on Burnup Characteristics in Breed and Burn Fast Reactor

*Suzuko Saito¹, Jun Nishiyama¹, Toru Obara¹ (1. Tokyo Institute of Technology)

Keywords:breed and burn reactor, fast reactor, metalic fuel, uranium nitride, uranium oxide, lead-bismuth eutectic, lead, sodium, helium

In Breed and Burn Fast Reactor, burnup characteristics is supposed to be affected by changing fuel and coolant materials. However, that has not been studied quantitatively. The purpose of this study is to clarify the impact on burnup characteristics by changing fuel and coolant materials. Metalic fuel (U-10Zr), UN, and UO₂ were assumed as fuel materials. Pb-Bi eutectic, Pb, Na, and He were assumed as coolant materials. The burnup characteristics was investigated by using MVP-BURN. Both of the infinite and finite geometry were analyzed. As the result, the effect of fuel and coolant material on burnup characteristics was shown.