Research on Top Peak Flux Problem of Mixed Core with MOX Fuel

被引：0

作者：

Li S. ^{[1
]}

Li T. ^{[1
]}

Guo X. ^{[1
]}

Yu Y. ^{[1
]}

Li Q. ^{[1
]}

机构：

[1] Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu

来源：

| 2018年 / Atomic Energy Press卷 / 39期

关键词：

Center drilling; MOX fuel; Top peak flux;

D O I：

10.13832/j.jnpe.2018.S2.0010

中图分类号：

学科分类号：

摘要：

Through detailed modeling and analysis, this paper expounds the phenomenon and reason for the top peak flux. It is found that the top peak flux is widespread in the mixed core with MOX fuel. In order to solve this problem, it is proposed to change the top composition of MOX assembly or UO2 assembly to reduce the top neutron flux. Calculations show that adding 12~18 cm Gd2O3 to the top of the MOX fuel rod is the best solution. Center drilling of MOX fuel can also be another solution. © 2018, Editorial Board of Journal of Nuclear Power Engineering. All right reserved.

引用

页码：10 / 14

页数：4