Change in shape and size of fuel assembly duct in BN-350 reactor

Askar Sarsekeyev, E. V. Chumakov, Toktasyn Mendebayev

2013

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DOI 10.1080/00223131.2014.863717
Data confidence 70 medium
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Abstract

The paper presents analytical data obtained by directly measuring samples taken at different levels of a hexagonal fuel assembly duct used in the BN-350 fast reactor. The difference between the length of the deflection arc and the width of an intact duct face displays the accumulated irradiation-creep deformation during the operation period. The deflection of the duct faces induced by the irradiation creep was analyzed, and irradiation-creep rate versus distance from the core center was analyzed for the assembly duct in the BN-350 fast reactor.