Web-based Core Design System Development

<正>The selection of a loading pattern is one of core design processes in the operation of a nuclear power plant.A potential new loading pattern is identified by selecting fuels that to not exceed the major limiting factors of the design and that satisfy the core design conditions for employing fuel data from the existing loading pattern of the current operating cycle.The selection of a loading pattern is also related to the cycle plan of an operating nuclear power plant and must meet safety and economic requirements[1].In selecting an appropriate loading pattern,all aspects,such as input creation,code runs and result processes are processed as text forms manually by a designer,all of which may be subject to human error,such as syntax or running errors. Time-consuming results analysis and decision-making processes are the most significant inefficiencies to avoid. A web-based nuclear plant core design system was developed here to remedy the shortcomings of an existing core design system.The proposed system adopts the general methodology of OPR1000(Korea Standard Nuclear Power Plants) and Westinghouse-type plants.Additionally,it offers a GUI(Graphic User Interface)-based core design environment with a user-friendly interface for operators.It reduces human errors related to design model creation,computation,final reload core model selection,final output confirmation,and result data validation and verification.Most significantly,it reduces the core design time by more than 75% compared to its predecessor.