CUED Publications database

A survey of alternative once-through fast reactor core designs

Fei, T and Richard, JG and Kersting, AR and Don, SM and Oi, C and Driscoll, MJ and Shwageraus, E (2012) A survey of alternative once-through fast reactor core designs. In: UNSPECIFIED 1562 - 1571-1562 - 1571..

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Reprocessing of Light Water Reactor (LWR) spent fuel to recover plutonium or transuranics for use in Sodium cooled Fast Reactors (SFRs) is a distant prospect in the U.S.A. This has motivated our evaluation of potentially cost-effective operation of uranium startup fast reactors (USFRs) in a once-through mode. This review goes beyond findings reported earlier based on a UC fueled MgO reflected SFR to describe a broader parametric study of options. Cores were evaluated for a variety of fuel/coolant/reflector combinations: UC/UZr/UO<inf>2</inf>/UN;Na/Pb; MgO/SS/Zr. The challenge is achieving high burnup while minimizing enrichment and respecting both cladding fluence/dpa and reactivity lifetime limits. These parametric studies show that while UC fuel is still the leading contender, UO<inf>2</inf> fuel and ZrH<inf>1.7</inf> moderated metallic fuel are also attractive if UC proves to be otherwise inadequate. Overall, these findings support the conclusion that a competitive fuel cycle cost and uranium utilization compared to LWRs is possible for SFRs operated on a once-through uranium fueled fuel cycle. In addition, eventual transition to TRU recycle mode is studied, as is a small test reactor to demonstrate key features.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Divisions: Div A > Energy
Depositing User: Cron job
Date Deposited: 04 Feb 2015 22:53
Last Modified: 05 Feb 2015 08:25