Multiphysics fuel performance modeling of dispersed TRISO-coated particle fuel plate under long-time normal condition and accident conditions

被引：0

作者：

Cai, Mengke ^{[1
]}

Cong, Tenglong ^{[1
]}

Gu, Hanyang ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Nucl Sci & Engn, Shanghai 200240, Peoples R China

来源：

NUCLEAR ENGINEERING AND DESIGN | 2023年 / 415卷

基金：

中国国家自然科学基金;

关键词：

TRISO-coated particle; Multi-physics simulation; Accident failure analysis; Porosity effect; THERMAL-CONDUCTIVITY; HIGH-TEMPERATURE; BURN-UP; IRRADIATION; SIMULATION; BEHAVIORS; HEAT;

D O I：

10.1016/j.nucengdes.2023.112725

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：

TRISO-coated nuclear fuel has been extensively studied these decades due to the reliable accident tolerance performance. Based on the ABAQUS implicit finite element solver, the thermal-mechanical coupled simulations of the TRISO-particles embedded plate fuel were carried out. Multi-physical effects were incorporated into the simulation, including the plastic deformation, irradiation swelling, creep and gap heat transfer. Results show that the dispersed TRISO-coated particle fuel plate has robust thermal-mechanical performance under long-time normal condition. The maximum fuel temperature is 668 K and the cumulative failure probability for the SiC layer is 1.85 x 10-4. Under reactivity insertion accident and loss of coolant accident conditions, this fuel has reliable anti-accident capacities due to TRISO layer's protection. Additionally, the porosity effect on thermo-mechanical performance of this fuel was analyzed.

引用

页数：18