Abstract
The main purpose of this research is to establish a RELAP5-3D BOP (Balance of Plant) system simulation model. This research depends on the integration and analysis of data according to the various components of pressurized water power plants, Maanshan Nuclear Power Plant. The RELAP5-3D thermal-hydraulic analysis software is applied to connect each functional hydraulic component that is appropriate to accomplish the simulation model. In addition, the research also includes combination of BOP and NSSS (Nuclear Steam Supply System) to build a complete simulation of a whole nuclear power plant. After combination, one power test (Thermal power is linearly changed from 100% of rated power to 75% and end at 50%) is applied on the whole model. The purpose is to verify the simulation at different power. Finally, two transients (Turbine trip and Loss of feedwater) are simulated on the model. Simulation results are compared with the plant test data at the end of this paper, which indicates that the model could simulate the Maanshan Nuclear Power Plant to a certain degree.