摘要
用THERMIX程序计算了石墨球床的温度分布。研究了高温气冷堆球床内部热量传递机制，给出了三种有效导热系数的分析方法和计算模型。以国际原子能机构(IAEA)关于“高温气冷堆在事故工况下的热传输和余热载出”问题的合作研究计划(Coordinated Research Program简称CRP)的SANA基准试验为基础，计算了球床内的温度分布和自然对流对传热的影响。计算结果与实验测量结果作了比较，证实了THERMIX程序和有效导热系数的准确性。
Using THERMIX code to analyze the temperature distribution of pebble bed, three different types of effective conductivity are evaluated for radiation, convection and conduction. Based on SANA benchmark problems of the IAEA Coordin ated Research Program (CRP) on “Heat Transport and Afterheat Removal for GCRs under Accident Conditions”, the pebble bed temperature distribution and the effect of natural convection on heat transport are calculated. Good agreements between calculation results and measured data validate the THERMIX code and the effective conductivity correlati on in modeling the heat transfer mechanisms in pebble bed.
出处
《核科学与工程》
CSCD
北大核心
1999年第4期303-308,共6页
Nuclear Science and Engineering
