Ultra-Long-Life Fast Reactor Cores having Axial Blanket-Driver-Blanket Burnup Strategy with Thorium and PWR Spent Fuels
- Department of Nuclear Engineering, Kyung Hee University: 1732 Deokyoung-daero, Giheung-gu, Yongin, Gyeonggido (Korea, Republic of)
The sustainable energy over a long-term period can be supplied by ultra-long-life fast reactor cores that are designed by fully utilizing breeding by fast neutrons to be operated over several tens of years without refueling. But the fast reactor cores of this type usually have high positive coolant void reactivity worth resulted from the high TRU (Transuranics) contents in the high burnup, which can degrade the inherent safety through high positive coolant expansion reactivity coefficient. Recently, the authors have designed new small ultra-long-life cores that can be operated over 50{approx}60 EFPYs (Effective Full Power Years) and satisfy the self-controllability conditions under the unprotected accidents. The cores use axial blanket-driver-blanket configuration to achieve ultra-long operational cycle length where the fuel burnup propagates from the outer core to the inner core and from the axially central driver to the outer blanket regions. The objective of this work is to suggest the different design options with thorium addition and TRU and uranium from PWR spent fuels for effectively utilizing the large PWR spent fuel stocks and to analyze the performances of the cores. (authors)
- OSTI ID:
- 23042840
- Journal Information:
- Transactions of the American Nuclear Society, Vol. 115; Conference: 2016 ANS Winter Meeting and Nuclear Technology Expo, Las Vegas, NV (United States), 6-10 Nov 2016; Other Information: Country of input: France; 8 refs.; available from American Nuclear Society - ANS, 555 North Kensington Avenue, La Grange Park, IL 60526 (US); ISSN 0003-018X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
BURNUP
COOLANTS
FAST NEUTRONS
FAST REACTORS
PERFORMANCE
PWR TYPE REACTORS
REACTIVITY COEFFICIENTS
REACTIVITY WORTHS
REACTOR ACCIDENTS
REACTOR CORES
REACTOR DESIGN
REACTOR SAFETY
SPENT FUELS
THORIUM
THORIUM ADDITIONS
URANIUM