基于轻水堆最佳估算系统分析程序RELAP/SCDAPSIM/MOD4.0,添加新的FLi Na K熔盐热物性参数和适用于熔盐的对流换热系数,开发了适用于FHR系统的热工水力分析程序RELAP5-FHR。通过FLi Na K高温熔盐实验回路对RELAP5-FHR程序进行实验验证。...基于轻水堆最佳估算系统分析程序RELAP/SCDAPSIM/MOD4.0,添加新的FLi Na K熔盐热物性参数和适用于熔盐的对流换热系数,开发了适用于FHR系统的热工水力分析程序RELAP5-FHR。通过FLi Na K高温熔盐实验回路对RELAP5-FHR程序进行实验验证。结果表明:RELAP5-FHR程序计算值与实验值吻合较好,验证了程序的适用性。展开更多
This paper reports on the modeling and simulation of flashing-induced instabilities in naturalcirculation systems, with special emphasis on simplified boiling water reactors (SBWRs). In this work, flashing-induced osc...This paper reports on the modeling and simulation of flashing-induced instabilities in naturalcirculation systems, with special emphasis on simplified boiling water reactors (SBWRs). In this work, flashing-induced oscillations have been studied by using an experimental test facility (SIRIUS-N) and RELAP5/MOD3.2 thermal hydraulic code. The behavior of the test facility is investigated for different values of core inlet temperature value. The results of the simulations have been compared qualitatively and quantitatively with experiments. In general, deviations are found between the numerical and experimental results, in spite of the close similarity between the SIRIUS-N facility and the definition of the system in the RELAP code. This result indicates that predictions regarding experimental facility, based on modeled system, should be carefully considered.展开更多
文摘基于轻水堆最佳估算系统分析程序RELAP/SCDAPSIM/MOD4.0,添加新的FLi Na K熔盐热物性参数和适用于熔盐的对流换热系数,开发了适用于FHR系统的热工水力分析程序RELAP5-FHR。通过FLi Na K高温熔盐实验回路对RELAP5-FHR程序进行实验验证。结果表明:RELAP5-FHR程序计算值与实验值吻合较好,验证了程序的适用性。
文摘This paper reports on the modeling and simulation of flashing-induced instabilities in naturalcirculation systems, with special emphasis on simplified boiling water reactors (SBWRs). In this work, flashing-induced oscillations have been studied by using an experimental test facility (SIRIUS-N) and RELAP5/MOD3.2 thermal hydraulic code. The behavior of the test facility is investigated for different values of core inlet temperature value. The results of the simulations have been compared qualitatively and quantitatively with experiments. In general, deviations are found between the numerical and experimental results, in spite of the close similarity between the SIRIUS-N facility and the definition of the system in the RELAP code. This result indicates that predictions regarding experimental facility, based on modeled system, should be carefully considered.
