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固态燃料钍基熔盐堆(Thorium Molten Salt Reactor-Solid Fuel,TMSR-SF1)作为第四代先进核反应堆堆型之一,继承了熔盐冷却剂和球形燃料元件的许多优点和技术基础,具有良好的经济性、设计上的固有安全性、钍铀燃料的可持续性和防核扩散性。本文以10 MW固态燃料钍基熔盐堆为模型,利用MCNP(Monte Carlo N Particle Transport Code)和ANSYS Fluent等模拟程序对其进行多物理耦合分析,同时利用C++语言编写了堆芯活性区的物理-热工耦合计算程序,实现了MCNP计算结果与Fluent程序的对接,并且通过对比耦合前后结果,分析了堆芯功率密度分布、有效增殖因子、温度分布等主要参数,为熔盐堆的设计、安全性评估和操作运行提供了参考依据。
As one of the fourth generation advanced nuclear reactors, Thorium Molten Salt Reactor-Solid Fuel (TMSR-SF1) inherits many advantages and technical foundations of molten salt coolant and spherical fuel element and has good Economy, design inherent safety, thorium-uranium fuel sustainability and non-proliferation. In this paper, a 10 MW solid-state fuel thorium-based molten salt reactor is used as a model to conduct multi-physics coupling analysis using MCNP (Monte Carlo N Particle Transport Code) and ANSYS Fluent simulation programs. At the same time, - thermal coupling calculation program to achieve the MCNP calculation results and Fluent program docking, and by comparing the results before and after coupling, analysis of the core power density distribution, the effective proliferation factor, the temperature distribution and other key parameters for the molten salt reactor design, Safety assessment and operation of the operation provides a reference.