原子能科学技术2018，Vol.52Issue(2)：283-289,7.DOI:10.7538/yzk.2017.youxian.0217
UN核芯TRISO包覆燃料颗粒性能分析
Performance Analysis of TRISO Coated Fuel Particle with UN Kernel
李伟 1武小莉 1刘仕超 1王璐 1苗一非 1唐昌兵 1李文杰 1陈平1
作者信息
- 1. 中国核动力研究设计院 核反应堆系统设计技术重点实验室,四川 成都 610213
- 折叠
摘要
Abstract
For the purpose of analyzing the impact of PyC layers,internal pressure etc.on the thermomechanical performance of T RISO coated fuel particle,a 3D thermo-mechanical coupling model was developed for TRISO coated fuel particle with UN as the kernel by using the multi-physics coupling software COMSOL,and the model was vali-dated against the IAEA CRP-6 benchmark.Performance analysis of the TRISO coated fuel particle with typical design parameters was conducted under steady state and reac-tivity introduced accident(RIA)conditions.The results show that the SiC layer main-tains its structure integrity,but the IPyC layer has the potential of failure in steady state condition.Further improvement to the design of T RISO coated fuel particle is required.For the RIA condition,thermal expansion is a dominant factor resulting in the loss of structure integrity of the TRISO coated fuel particle.The model is capable of analyzing the performance of TRISO coated fuel particles with complicated multi-physics characteristics under the operation conditions of LWR,which is useful for further optimizing the FCM fuel design.关键词
UN核芯/TRISO/COMSOL/性能分析Key words
UN kernel/TRISO/COMSOL/performance analysis分类
能源科技引用本文复制引用
李伟,武小莉,刘仕超,王璐,苗一非,唐昌兵,李文杰,陈平..UN核芯TRISO包覆燃料颗粒性能分析[J].原子能科学技术,2018,52(2):283-289,7.
