Investigation Of Modeling On Nuclear Power Plant Auxiliary Systems And Application

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.