燃料元件性能分析程序中的燃料热导率模型分析

摘要

The thermal conductivity is one of the most important parameters in the computer code for performance prediction for fuel rods.Several fuel thermal conductivity models used in foreign computer code,including thermal conductivity models for MOX fuel and UO2 fuel were introduced in this paper. Thermal conductivities were calculated by using these models, and the results were compared and analyzed.Finally, the thermal conductivity model for the native computer code for performance prediction for fuel rods in fast reactor was recommended.%热导率是燃料元件性能分析程序最重要的参数之一，本文介绍了各国部分性能分析程序的燃料热导率模型，按照 MOX和 UO2燃料分类，给出了这些性能分析程序热导率模型的计算结果，并进行分析对比，给出了国产快堆性能分析程序的热导率推荐模型。