基于3 Keymaster平台的压水堆核电站系统回路放射性仿真研究

摘要

核电站一、二回路放射性水平的分析和仿真，是实现核电站辐射监测系统仿真的重要组成部分。本文对放射性源项进行分析和简化、建立核素释放和输运模型，并基于3Keymaster仿真平台对一、二回路的放射性水平进行仿真。给出在 SGTR、燃料棒破损事故条件下的系统回路内的放射性仿真结果，以验证放射性核素释放及输运模型的合理性和适用性。%The analysis and simulation of the primary and secondary loop radioactive level at nuclear power plant plays an important role in achieving radiation monitoring system simulation.It has been presented in this paper the nuclear power plant radioactive source term analysis and simplification, the source term release and transport model establishment,and the primary and secondary loops radioactive levels simulation based on 3Keymaster simulation platform.The paper has also given the simulation results under SGTR and fuel rods damaged accidents conditions to verify the reasonableness and suitability of the radionuclide release and transport models.