Design of In-Core Refueling Management Subsystem for Tianwan Nuclear Power Plant

The core of Tianwan NPP is refueled by in-core refueling technology.A set of refueling management subsystem was developed,which is one important part of the fuel management system.It can provide assistance to the management staff by the graphics,to accomplish the step design and optimization for in-core refueling.This subsystem is based on B/S structure and developed with ASP.NET.,which adopts the methods of vector plotting,hidden committing and picture buffer.This paper describes the design idea of the subsystem and mainly introduces the resolution of graphics technology.