燃料棒共振有效温度机理性模拟程序FRET研发

Research of Simulation Program FRET for Fuel Rod Resonance Effective Temperature Mechanism

利用蒙特卡罗程序模拟燃料棒中功率分布、利用燃料棒性能分析程序模拟燃料棒中的热力学行为,建立能够计算燃料棒共振有效温度的计算模型,并开发了燃料棒共振有效温度机理性模拟程序(FRET)。通过与SCIENCE程序包中SMART程序相关计算模块的计算结果对比,表明FRET程序能够准确地模拟计算压水堆不含可燃毒物燃料棒的共振有效温度。与工程使用的燃料棒共振有效温度计算程序相比,本文开发的机理性程序FRET不需要用户输入燃料有效温度的加权经验参数,能够计算不同类型燃料棒,具有更为广泛的应用性。

Power distribution in the fuel rod is simulated by Monte Carlo program, and the thermodynamic behavior of the fuel rod is simulated by the fuel rod performance analysis program. Model to calculate the effective temperature of the fuel rods resonance is established, and the simulation program FRET is developed to simulate the mechanism for the fuel rod resonance effective temperature. The comparison with the calculation results from the SMART program in the SCIENCE program package showed that the FRET program can accurately simulate and calculate the resonance effective temperature of the PWR without the burnable poison fuel rods. The FRET program does not require the user to input the weighted experience data of the fuel effective temperature and can be used to calculate different types of fuel rods, which is with more extensive applications, compared with the related calculation program used in the engineering.