As part of the development of technical bases which support the extended storage and transportation of used nuclear fuel, Pacific Northwest National Laboratory (PNNL) has implemented detailed thermal analysis methods for the calculation of best estimate temperatures of Dry Cask Storage (DCS) systems. These methods were used to model a NAC International MAGNASTOR~® cask located at the Catawba Nuclear Station (Catawba) which is operated by Duke Energy This cask has one of the highest total heat loads of any DCS system loaded in the U.S.. Using best estimate operational data from the utility, fuel assembly and cask design information from the vendors, and decay heat estimates from Oak Ridge National Laboratory (ORNL), PNNL calculated the maximum cladding temperature of 307°C. This is well below the 400°C regulatory guidance limit.
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机译:作为支持扩展使用和储存废旧核燃料的技术基础的一部分,西北太平洋国家实验室(PNNL)实施了详细的热分析方法,以计算干式存储(DCS)系统的最佳估计温度。这些方法用于对位于杜克能源公司(Duke Energy)经营的卡托巴核电站(Catawba)上的NAC International MAGNASTOR〜容器进行建模。 PNNL计算得出公用事业公司的运行数据,供应商的燃料组件和桶设计信息以及橡树岭国家实验室(ORNL)的衰变热估计值,得出最高包层温度为307°C。这远低于400°C的法规指导限值。
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