RELAP5模拟AP1000 ERVC自然循环过程研究
发布时间:2019-05-11 05:09
【摘要】:压力容器外部自然循环冷却(ERVC)系统作为AP1000的非能动安全系统之一,对熔融物堆内滞留,阻止放射性物质大规模释放起到关键的作用。本文通过RELAP5程序针对AP1000的ERVC系统建立模型,进行自然循环冷却的物理过程模拟,并对加热功率、冷却水过冷度、安全壳压力等关键参数进行了敏感性分析。除此之外,本文还对分析模型进行简化,并对比了两个模型的计算结果,证明了简化的合理性。
[Abstract]:As one of the passive safety systems of AP1000, the natural circulation cooling (ERVC) system outside the pressure vessel plays a key role in the retention of molten materials and the prevention of large-scale release of radioactive materials. In this paper, the model of ERVC system of AP1000 is established by RELAP5 program, and the physical process simulation of natural circulation cooling is carried out, and the sensitivity of key parameters such as heating power, cooling water undercooling degree, containment pressure and so on is analyzed. In addition, the analysis model is simplified, and the calculation results of the two models are compared, and the rationality of the simplification is proved.
【作者单位】: 国核华清(北京)核电技术研发中心有限公司;
【基金】:国家重大科技专项严重事故机理及现象学研究课题
【分类号】:TL364
本文编号:2474269
[Abstract]:As one of the passive safety systems of AP1000, the natural circulation cooling (ERVC) system outside the pressure vessel plays a key role in the retention of molten materials and the prevention of large-scale release of radioactive materials. In this paper, the model of ERVC system of AP1000 is established by RELAP5 program, and the physical process simulation of natural circulation cooling is carried out, and the sensitivity of key parameters such as heating power, cooling water undercooling degree, containment pressure and so on is analyzed. In addition, the analysis model is simplified, and the calculation results of the two models are compared, and the rationality of the simplification is proved.
【作者单位】: 国核华清(北京)核电技术研发中心有限公司;
【基金】:国家重大科技专项严重事故机理及现象学研究课题
【分类号】:TL364
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