论文部分内容阅读
氟盐冷却高温堆(FHR)是近年提出的一种新概念反应堆,继承了第四代反应堆和压水堆的技术特点,具有较高的经济性和安全性。以上海应用物理研究所设计的球床FHR(PB-FHR)为研究对象,采用CFD方法,建立了堆芯多孔介质模型,考虑了因燃料球堆积对冷却剂流动所产生的阻力作用,开展了PB-FHR热工水力安全限值研究,获得了两种不同工况下,满足堆芯入口温度、堆芯出口温度、冷却剂最高温度和燃料球中心最高温度限制的安全运行区间。研究对于PB-FHR的设计优化以及安全评审具有借鉴意义。
Fluorine salt cooling high temperature reactor (FHR) is a new concept reactor proposed in recent years, which inherits the technical characteristics of the fourth generation reactor and PWR and has higher economy and safety. Based on the ball bed FHR (PB-FHR) designed by Shanghai Institute of Applied Physics, CFD method was used to establish the model of porous core of the reactor. Considering the resistance effect caused by the accumulation of fuel balls on the flow of coolant, PB-FHR thermal and hydraulic safety limits were obtained, and two safe operating ranges were obtained under two different operating conditions, which meet the core inlet temperature, core outlet temperature, maximum coolant temperature and the maximum temperature of the fuel ball center. The research has reference significance for the design optimization and safety assessment of PB-FHR.