Research on Dynamic Rod Measurement Method Based on Torch Software Package for PWR

Abstract Dynamic rod measurement method proposed by Westinghouse and Electric Power Research Center is an effective control rod worth measurement method, which has been applied widely. The main feature of dynamic rod measurement method includes the high accuracy and the short process of the corresponding rod worth measurement test. Torch software package developed by Nuclear Power institute of China can be used to analyze the neutron physics of PWR. Corca-K in the Torch software package is the tool that is used to solve the three-dimensional space-time neutron kinetics equations. A tool based on dynamic rod measurement method and Corca-K was developed, and verified by the control rod worth measurement test of Unit #1 of FangJiaShan and Unit #4 of FuQing power plant. The results showed that the developed tool was accurate, which the relative error of the different control rods between the calculated control rod value and the measured control rod value was less than 10%. The results showed that the developed tool could be applied to the measurement of the control rod value.