燃料元件作为反应堆的核心部件,其性能是影响核电安全性和经济性的最主要因素之一。压水堆使用环形燃料元件代替传统棒状燃料元件,在安全性能保持或好于传统棒状燃料堆芯情况下,堆芯结构不变,可将堆功率提高50%,大幅增加了燃耗水平,显著提高核电厂运行的经济性。“十一五”期间,中国原子能科学研究院开展了“燃料元件基础研究”课题:以秦山二期核电厂 As the core component of the reactor, the performance of fuel element is one of the most important factors affecting the safety and economy of nuclear power. PWRs use ring-shaped fuel elements instead of conventional rod-shaped fuel elements. The core structure is unchanged when the safety performance is maintained or better than that of the traditional rod-shaped fuel core, which increases the reactor power by 50% and greatly increases the fuel consumption level, significantly Improve the economics of nuclear power plants. During the 11th Five-year Plan, China Institute of Atomic Energy launched the “Fundamental Research on Fuel Elements” project: Taking Qinshan Phase II NPP