FUEL ASSEMBLY FOR PRESSURIZED-WATER REACTOR

PROBLEM TO BE SOLVED: To provide a fuel assembly for a pressurized-water reactor in which output of an outer peripheral part can be suppressed sufficiently, while improving economical efficiency, without changing a uranium concentration degree between a central part and an outer peripheral part of a...

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Bibliographic Details
Main Authors SHOYAMA MIZUKI, NAGANO HIROAKI
Format Patent
LanguageEnglish
Published 14.11.2013
Subjects
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
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Summary:PROBLEM TO BE SOLVED: To provide a fuel assembly for a pressurized-water reactor in which output of an outer peripheral part can be suppressed sufficiently, while improving economical efficiency, without changing a uranium concentration degree between a central part and an outer peripheral part of a fuel assembly.SOLUTION: In a fuel assembly for a pressurized-water reactor composed of a plurality of fuel rods having a predetermined uranium concentration, erbia or boron is added only to fuel rods disposed in an outer peripheral part of the fuel assembly. In the fuel assembly for the pressurized-water reactor composed of the plurality of fuel rods having the predetermined uranium concentration, the fuel rods are disposed in such a manner that the quantity of erbia or boron to be added is reduced from the outer peripheral part toward a central part of the fuel assembly.
Bibliography:Application Number: JP20120102310