高温气冷堆包覆燃料颗粒破损机制及失效模型  

The failure mechanisms of HTR coated particle fuel and computer code

作　　者：杨林[1] 刘兵[1] 邵友林[1] 梁彤祥[1] 唐春和[1] 

机构地区：[1]清华大学核能与新能源技术研究院,北京100084

出　　处：《核科学与工程》2010年第3期210-215,222,共7页Nuclear Science and Engineering

基　　金：国家重大科技专项经费资助项目(ZX06901)

摘　　要：高温气冷堆的燃料元件的基本构成单元是全陶瓷型的包覆燃料颗粒,其性能决定了高温气冷堆的安全性。除了传统的辐照实验检测外,建立理论模型对其研究具有重要的意义。本文主要介绍了TRI-SO型包覆燃料颗粒的结构及破损机制,以及国外现有的几个主要模型的基本假设,计算原理和特点,通过对比几个模型的优缺点,提出今后研究的方向。The basic constituent unit of fuel element in HTR is ceramic coated particle fuel.And the performance of coated particle fuel determines the safety of HTR.In addition to the traditional detection of radiation experiments,establishing computer code is of great significance to the research.This paper mainly introduces the structure and the failure mechanism of TRISO-coated particle fuel,as well as a few basic assumptions,principles and characteristics of some existed main overseas codes.Meanwhile,this paper has proposed direction of future research by comparing the advantages and disadvantages of several computer codes.

关 键 词：高温气冷堆 包覆燃料颗粒 破损机制 

分 类 号：TL424[核科学技术—核技术及应用]