摘要
为确定 NHR- 10钆组件增殖因子与组件参数之间的定量关系 ,采用 TRANP程序进行组件计算 ,并进行分段低阶拟合和不分段高阶拟合 ,给出了组件增殖因子随燃耗变化的拟合曲线。计算结果表明 :可燃毒物排列与组件增殖因子无关。组件增殖因子与富集度、钆毒物质量分数、可燃毒物根数的近似数量关系可以通过分段低阶拟合来表示。分段低阶拟合比不分段高阶拟合具有更高的精度。
The paper discusses the quantitative relationship between K ∞ and NHR10 assembly parameters. The assembly calculation was performed with the TRANP code. A lowerorder relationship was developed for subsections with a highorder relationship without considering the subsections. An approximate curve is given to relate K ∞ and the fuel assembly depletion. The results show that the arrangement of the gadolinium burnable poison has little influence on the K ∞ of the assembly. The lowerorder formulas for each subsection relate K ∞ and the enrichment, the number of gadolinium burnable poison and the mass percent of gadolinium. The subsection formula is more precise than that without considering the subsections. It gives an approximate method for assembly design to characterize K ∞ versus the fuel assembly depletion for fuel cycle analysis.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2001年第10期56-57,61,共3页
Journal of Tsinghua University(Science and Technology)
