【作者】 周雅宁；

【导师】 程旭；

【作者基本信息】 上海交通大学 ， 核能科学与工程， 2010， 硕士

【摘要】 核电的安全性和经济性始终是人们关注的问题。为了保证核电厂的安全性、提高经济性,计算机和控制、信息技术正越来越多地被应用于核电领域。这其中的主要体现就是计算机仿真技术和数字化仪控技术在核电站的应用。本论文以扩展核电站安全分析对象范围为目标,围绕核电站辅助系统流体网络计算分析问题,针对CPR1000型核电站,进行了单相流体网络的热工水力数值模拟与计算分析研究。首先以化学和容积控制系统和硼和水补给系统为对象,进行了详细的系统流程分析,在此基础上进行了简化,得到具体的研究对象。其次,将复杂的系统对象拆分成不同的基本部件,分析并建立了相应的数学模型。最后通过对系统设计数据的收集和转换,使用Flowmaster软件,将各部件组合形成了详细的辅助系统流体网络模型。本文针对含有热工流体网络模型的压水堆核电站核辅助系统建立仿真模型,构成了较完整的虚拟电厂核辅助系统的热工流网模型,根据实际电厂正常运行过程中所发生的瞬态工况进行实时模拟计算。并将计算结果与电厂实际运行过程中曲线对比,验证了系统模型在瞬态工况下的工作状况。更多还原

【Abstract】 Safety and economy efficiency of Nuclear Power Plant is always concerned by people. In order to enhance the safety and economy of Nuclear Power Plant, computer and control-info-technology is widely applied in nuclear power field. One of the main embodiment is the application of simulation technology and digitizer control technology in Nuclear Power Plant.The nuclear power plant simulation and security analysis aimed at one loop-one and loop-two. First, this paper is to extend the range of nuclear security analysis of the object as the goal of fluid around the nuclear power plant auxiliary systems analysis of network computing problems for CPR1000 Nuclear Power Plant. The study is conducted on a single-phase fluid network of thermal-hydraulic analysis of numerical simulation and calculation. According to REA and RCV as objects, the simplified models are built up. After a detailed analysis, the objects are decided. Second, complicated systems split into different basic components. The corresponding mathematical models of these components are established. Then it is time to collect the detailed data and transform them into a useful form. Using Flowmaster software, the components are combined to form a detailed supporting fluid network models.According to these built models, a thermal fluid network model of t auxiliary system is built up. Based on the actual power plants occurred during the normal operation of the transient conditions in real-time simulation. The calculated results with the actual power plant during operation curves to verify the system model in transient operating conditions of the working conditions. Finally, the conclusions are given.更多还原