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1. (WO2017195241) FUEL ASSEMBLY AND NUCLEAR REACTOR CORE LOADED WITH SAME

Pub. No.:    WO/2017/195241    International Application No.:    PCT/JP2016/063702
Publication Date: Fri Nov 17 00:59:59 CET 2017 International Filing Date: Tue May 10 01:59:59 CEST 2016
IPC: G21C 3/328
G21C 5/20
Applicants: HITACHI, LTD.
株式会社日立製作所
Inventors: MITSUYASU Takeshi
光安 岳
HINO Tetsushi
日野 哲士
ONO Michitaka
小野 道隆
Title: FUEL ASSEMBLY AND NUCLEAR REACTOR CORE LOADED WITH SAME
Abstract:
Provided are a fuel assembly with which output distribution in the axial direction of a reactor core is smoothed out and the combustion efficiency of non-fissile transuranium elements (TRU) can be increased, and a nuclear reactor core loaded with same. A fuel assembly 1 has an upper fuel region 21 and a lower fuel region 23 along the axial direction, the proportion of non-fissile transuranium elements (TRU) among heavy metals is 20 wt.% or more in the upper fuel region 21 and lower fuel region 23, and the proportion of non-fissile transuranium elements (TRU) contained in the upper fuel region 21 is greater than the proportion of non-fissile transuranium elements (TRU) contained in the lower fuel region 23.