Feasibility of using gadolinium as a burnable poison in PWR cores. Final report
As an alternative to the use of lumped burnable absorbers in PWR cores, distributed burnable absorbers are being considered for generic application. These burnable absorbers take the form of Gd/sub 2/O/sub 3/ mixed with UO/sub 2/ in selected fuel rods (as is currently done in BWR cores). The work discussed herein concerns a three-dimensional feasibility study of the use of such distributed burnable absorbers in PWR cores. This study of distributed burnable absorbers was performed for the first cycle of a typical current design PWR using the following steps: analysis of a generic reference core design; determination of gadolinium assembly designs; determination of a generic gadolinium core design; evaluation of feasibility by examining selected parameters; and redesign of the generic gadolinium core, using axial zoning.
- Research Organization:
- Science Applications, Inc., McLean, VA (USA)
- OSTI ID:
- 6597011
- Report Number(s):
- EPRI-NP-1663
- Country of Publication:
- United States
- Language:
- English
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ACTINIDE COMPOUNDS
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CHALCOGENIDES
DOPPLER COEFFICIENT
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FUEL ELEMENTS
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NUCLEAR POISONS
OXIDES
OXYGEN COMPOUNDS
POWER DISTRIBUTION
PWR TYPE REACTORS
RARE EARTH COMPOUNDS
REACTIVITY COEFFICIENTS
REACTIVITY WORTHS
REACTOR COMPONENTS
REACTOR CORES
REACTOR MATERIALS
REACTORS
URANIUM COMPOUNDS
URANIUM DIOXIDE
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WATER COOLED REACTORS
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