小批量国产自主化燃料组件入堆辐照策略研究

为实现第三代中国燃料组件（CF3）的小批量应用，研究了方家山核电厂2号机组第4循环到第7循环的燃料管理策略。在综合考虑核电厂运行经济性、安全性和CF3小批量应用的辐照考验要求的基础上，完成了CF3小批量辐照的燃料管理方案。为了进一步提高CF3的最大卸料燃耗，进行了燃耗达到55000?MW·d/t(U)的可行性分析。研究表明，CF3小批量辐照的燃料管理方案满足核电厂运行的安全性和经济性，达到了CF3小批量应用的辐照考验要求，如果后续调整该燃料管理方案的第3循环的堆芯装载，可以实现CF3的燃耗达到55000?MW·d/t(U)。 

Study on Fuel Management Strategy for Irradiation of Small Batch of CF3

In order to realize the small batch application of third generation China fuel assembly?(CF3), the fuel management strategy of the cycle 4 to cycle 7 of the unit 2?of Fangjiashan NPP is studied in this paper. Based on the consideration of?the economy, the safety of nuclear power plant operation and the irradiation test requirement of small batch application of CF3 fuel assembly, the fuel management scheme for the?small batch irradiation of CF3 fuel assembly is established. In order to further improve the maximum discharging burnup of CF3 fuel assembly, the feasibility of 55000 MW·d/t(U)?for CF3 fuel assembly burnup is?analyzed. The research shows that the fuel management scheme for the?small batch irradiation of CF3 fuel assembly meets the?requirement of the?safety and economy of nuclear power plant operation, and satisfies?the irradiation test requirement of small batch application of CF3 fuel assembly. If the core loading scheme of the third cycle of the fuel management scheme is properly adjusted later, the burnup of 55000 MW·d/t(U)?for CF3 fuel assemblies can be achieved.