摘要
在田湾核电站堆芯捕集器的设计中,综合采用了压力容器外包容装置、非能动供水冷却堆芯熔融物包容体金属表面以及用"牺牲性"材料改善熔融物特性和降低热流密度等项技术;利用SCDAP/RELAP和MELCOR两个独立的程序包分析了压力容器内堆芯的损坏、碎片的分布、熔池的形成、压力容器熔穿和熔融物转移到堆芯捕集器等的动态过程,并对堆芯熔融物、"牺牲性"材料、金属材料等之间的物理、化学反应和热交换器的热工水力特性进行了实验研究。
The design of core catcher of Tianwan nuclear power station comprehensively incorporates the ex-vessel containment facility, the cooling of the metallic surfaces of corium containment by passive water, the improvement of corium properties by the sacrificial material and reducing density of heat flux. Analysis of the dynamic process of core degradation, debris relocation within the reactor vessel, molten pool formation, reactor vessel melt-through and corium relocation into the core catcher is executed with the computer codes SCDAP/RELAP and MELCOR, and the reaction among the corium, the sacrificial material, and the metal material, as well as the thermal and hydraulic characteristic of heat exchanger is experimentally studied.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2008年第3期52-55,共4页
Nuclear Power Engineering
关键词
超设计基准事故
田湾核电站
堆芯捕集器
设计
Beyond design basis accident, Tianwan Nuclear Power Station, Core catcher, Design
