LOCA advanced failure criteria: Implementation in the mechanistic fuel performance code and practical applications

被引：1
作者：
Veshchunov, M. S. [1 ]
Boldyrev, A. V. [1 ]
Shestak, V. E. [1 ]
机构：
[1] Russian Acad Sci, Nucl Safety Inst IBRAE, 52 B Tulskaya, Moscow 115191, Russia
来源：
NUCLEAR ENGINEERING AND DESIGN | 2022年 / 399卷
关键词：
OXIDATION; BEHAVIOR;
D O I：
10.1016/j.nucengdes.2022.112039
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
The advanced Chung-Kassner criteria for the capability of fuel rods to withstand thermal shock during LOCA reflooding and to withstand post-quench fuel handling, as well as the complementary cladding embrittlement criteria of KAERI and KIT, are compared to the traditional LOCA safety criterion of 17% ECR oxidation. The advanced failure criteria were implemented in the mechanistic thermomechanical code SVECHA/QUENCH (S/Q) and successfully applied to predict fuel rod failure behaviour in postulated LOCA scenarios and high temperature (1400 ?) pre-oxidation and quenching tests performed with fresh and irradiated fuel rod simulators. The extension of the advanced failure criteria to coated Zr alloy claddings is discussed.
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页数：10
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