Abstract Natural convection systems are a promising method to passively remove heat from reactor cavities during loss of forced flow accident scenarios. At Argonne National Laboratory (ANL), a highly instrumented Natural Convection Shutdown Heat Removal Test Facility (NSTF) was used to demonstrate the effectiveness of air-cooled natural convection systems. In previous work, RELAP5-3D simulations were performed on this facility with favorable comparisons to experiment for mass flow rate, pressure drop, air temperature increase, and air velocity. Both experimental and simulation efforts with this facility present a useful opportunity to perform a benchmark study with the System Analysis Module (SAM). SAM is an advanced thermal-hydraulic system code currently in development at ANL for advanced non–light water reactor safety analysis.

中文翻译：

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使用 SAM 对自然对流关闭排热测试设施进行基准模拟

摘要 自然对流系统是一种很有前景的方法，可以在强制流动事故情景中被动地从反应堆腔中去除热量。在阿贡国家实验室 (ANL)，使用高度仪器化的自然对流关闭排热测试设施 (NSTF) 来证明风冷自然对流系统的有效性。在之前的工作中，RELAP5-3D 模拟是在该设施上进行的，与质量流量、压降、空气温度升高和空气速度的实验进行了有利的比较。该设施的实验和模拟工作为使用系统分析模块 (SAM) 执行基准研究提供了有用的机会。SAM 是 ANL 目前正在开发的先进热工水力系统代码，用于先进的非轻水反应堆安全分析。