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球床氟盐冷却高温堆的控制棒位于侧反应射层内,存在无裂变中子源且受堆芯泄漏谱强烈影响的强吸收体区域扩散计算难题。超级均匀化方法(Super Homogenization,SPH)被用于对氟盐球冷却床堆侧反射层中控制棒区域的强吸收体进行等效均匀化处理,同时堆芯除控制棒区域外采用谱修正方法(Spectra Modification,SM),将输运计算的结果作为基准进行验算。结果表明,SM-SPH模型能有效地计算球床氟盐冷却高温堆反射层控制棒价值及通量分布,并且较常规的SPH方法能更好地处理棒间干涉效应。
Ball bed fluoride salt cooling high-temperature reactor control rod is located in the side reaction layer, there is no fission neutron source and the core leakage spectrum strong absorption area diffusion calculation difficult problem. Super Homogenization (SPH) was used to homogenize the strong absorbers in the control rod region of the reflex layer on the heap side of the fluoride salt sphere cooling cooling bed. At the same time, (Spectra Modification, SM), the calculation of the transport calculation as a benchmark for checking. The results show that the SM-SPH model can effectively calculate the value and flux distribution of the control rod in the reflectivity layer of high-temperature reactor cooled by fluoride fluoride, and can better deal with the interference effect between rods than the conventional SPH method.