ChinShan Nuclear Power Plant RELAP5/MOD3.3 Input Deck Development and Model Assessment

• Main Authors: Yu, Tzu-Yao, 游子堯
• Other Authors: Lee, Min
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/09235312333078167217

碩士 === 國立清華大學 === 工程與系統科學系 === 97 === In this study, the RELAP5/MOD3.3 input deck of ChinShan Nuclear Power Plant is constructed based on the existing RELAP5/MOD3 input deck of the station. The single steamline model of the original deck is updated to four steamline-line model. The control logic of the input deck is revised based on the ChinShan input deck of the RETRAN code. The control systems revised include three-element feedwater control system and the pressure regulator system. The input deck is initialized successfully to a steady state condition and then used to simulate two power test transients of the plant e.g. 97% power one recirculation pump trip and 100% power load rejection. The simulation results are compared with the data of power test. The results of comparison show that the pressure regulator control system can predict the trend similar to the power test data, but there is room for improvement for the three-element feedwater control system. The input deck constructed in this study does not model the systems of Balance of Plant (BOP), which is the major reason of the discrepancy between the simulation results of the code and the power test data.