The feasibility of employing inert matrix ceramic fuels in a Russian light water reactor

被引：9
|
作者：
Baranaev, YD [1 ]
Popov, VV [1 ]
Sharapov, VN [1 ]
Troyanov, VM [1 ]
机构：
[1] State Sci Ctr Russian Federat, Inst Phys & Power Engn, Obninsk, Russia
来源：
JOURNAL OF NUCLEAR MATERIALS | 2003年 / 319卷
关键词：
D O I：
10.1016/S0022-3115(03)00211-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study presents a version of Water-Water Energy Reactor (WWER) type fuel elements made using inert matrix fuels (IMFs) whose oxide fissile particulates are densely placed throughout a highly heat-conductive metal matrix consisting of silumin (cermet fuels). In these WWER-type fuel elements with cermet fuel, the fuel is bonded to cladding in a metallurgic way. It possesses some special features allowing the fuel to be used for both steady-state and load following operation modes. The study presents the results of the analytic study of the two variants of cermet fuel based on UO2 and UO2 + ThO2. The use of burnable poisons Er2O3 and Gd2O3 was considered. Characteristics of WWER with UO2 + ThO2 cermet fuel has been compared with those for conventional ceramic uranium dioxide fuel. In-pile testing of UO2 cermet fuel elements was carried out successfully up to a burnup of congruent to60 MW d kg(-1) of U. Results of stress calculations have shown fuel element cladding stability for operation in the load following mode. (C) 2003 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：154 / 158
页数：5
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