快堆少群常数库制作方法的研究及验证  

Research on the Production Method and Verification of the Few-Group Constant Library for Fast Reactor

作　　者：张崇 霍兴凯 胡赟[1] 徐李[1] Zhang Chong;Huo Xingkai;Hu Yun;Xu Li(Department of Nuclear Engineering Design,China Institute of Atomic Energy,Beijing,China)

机构地区：[1]中国原子能科学研究院核工程设计研究所,北京

出　　处：《科学技术创新》2024年第14期223-228,共6页Scientific and Technological Innovation

摘　　要：我国目前在快堆核设计中应用的物理计算程序是节块法输运程序,少群常数库是计算的关键输入,少群常数的合理性直接影响物理计算的准确度。制作少群常数库的关键因素在于共振处理和均匀化并群计算。本文基于快堆特性提出一套少群常数库制作方法并编写实现程序PASC5。利用中国实验快堆(CEFR)基准例题的实验数据对少群常数库制作方法及程序进行计算验证。本文的研究内容已应用于某些快堆工程项目的方案设计,并且通过实验数据进一步验证了该方法的正确性。The physical calculation program currently used in fast reactor nuclear design in China is the nodal transport program,and the few-group constant library is the key input for calculation.The rationality of few-group constants directly affects the accuracy of physical calculations.The key factors in creating a few-group constant library are resonance processing and homogenization and group merging.This article proposes a method for making a few-group constant library based on the characteristics of fast reactors and writes the implementation program PASC5.The few-group constant library made by the above method is verified by the experimental data of the benchmark example of China Experimental Fast Reactor(CEFR).The research content of this article has been applied to the scheme design of certain fast reactor engineering projects.The correctness of this method has been further verified through experimental data.

关 键 词：快堆 少群常数 PASC5程序 CEFR基准例题 

分 类 号：TL326[核科学技术—核技术及应用]