Decrease of the lwr spent nuclear waste inventories and cumulative fissile fuel enrichment in hybrid reactor system

摘要

Potential of the LWR spent-fuel rejuvenation in hybrid reactor system is investigated for different coolants. The analysis is conducted for LWR spent nuclear fuel which was used up to a total enrichment grade of 2.17percent. The fissile fuel zone is considered to be cooled with four coolant: Air, Flibe (Li_2BeF_4), Natural Lithium (Li), and Eutectic Lithium (Li_(17)Pb_(83)). The Fuel zone is considered to be cooled witht he coolant that has 45.5percent volume fraction in total reactor volume. The neutronic behavior of the LWR spent-fuel is observed during 48 month for discrete time intervals of triangle opent=15 days and by a plant factor(PF) of 75percent.