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环形燃料作为一种由内、外两面冷却的新型、高效和安全的燃料元件,能在保持或增进现有反应堆安全性能的前提下,大幅提高核电厂功率密度20%~50%,是高性能轻水堆核燃料的主要发展趋势之一。2014-2016年期间,在中核集团公司“龙腾2020”科技创新优先发展项目支持下,中国原子能科学研究院开展了环形燃料设计、制造和热工水力试验等关键技术研究。1堆芯和组件设计完成了环形燃料堆芯物理、热工水力、
As a new, efficient and safe fuel element cooled from the inner and outer sides, the annular fuel can greatly increase the power density of nuclear power plants by 20% ~ 50% while maintaining or enhancing the safety of existing reactors. It is a high performance Light water reactor nuclear fuel one of the main trends. During 2014-2016, with the support from CNNC’s “Dragon 2020” science and technology innovation priority project, China Institute of Atomic Energy conducted researches on key technologies such as circular fuel design, manufacture and thermal hydraulic test. 1 core and component design completed the ring core fuel physics, thermal hydraulic,