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堆芯燃料管理是涉及核电厂安全性和经济性的重要管理工作,也是核电厂运行期间最具灵活性的管理工作。在保证堆芯燃料安全运行目标的同时,合理确定堆芯燃料管理策略和换料技术路线,可以提高燃料的利用率,降低燃料循环成本,实现较好的核电厂经济性指标。秦山核电公司基于自身的燃料管理特点,从第四燃料循环起,通过燃料管理策略改进的可行性分析、分阶段实施燃料组件加深燃耗的随堆考验和性能跟踪评价等研究。逐步将国产化燃料的批平均卸料铀燃耗从设计之初的25 GWd/t提高到34 GWd/t,取得了国产化核电机组反应堆运行的安全性与经济性双重效益。
Core fuel management is an important management task involving the safety and economy of nuclear power plants and the most flexible management during the operation of nuclear power plants. While ensuring the safe operation of the core fuel, a reasonable determination of the core fuel management strategy and the refueling technology route can increase the utilization rate of fuel, reduce the fuel cycle cost and achieve better economic indicators of nuclear power plants. Based on its own characteristics of fuel management, from the fourth fuel cycle, Qinshan Nuclear Power Co., Ltd. carried out research on improving fuel consumption by using fuel assemblies in stages and tracking and evaluating performance through phased implementation of fuel management strategy improvement. Gradually increasing the average batch uranium burnup of domestic fuels from 25 GWd / t at the beginning of design to 34 GWd / t achieved the double benefits of safety and economy in the operation of domestic nuclear power plant reactors.