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首页> 外文期刊>EPJ Web of Conferences >CONCEPTUAL FUEL ELEMENT DESIGN CANDIDATES FOR CONVERSION OF HIGH FLUX ISOTOPE REACTOR WITH LOW-ENRICHED URANIUM SILICIDE DISPERSION FUEL *
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CONCEPTUAL FUEL ELEMENT DESIGN CANDIDATES FOR CONVERSION OF HIGH FLUX ISOTOPE REACTOR WITH LOW-ENRICHED URANIUM SILICIDE DISPERSION FUEL *

机译：概念燃料元件设计候选高通量同位素反应器与低富集的铀硅化物分散燃料 * / XRef>

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Engineering design studies are underway to assess the feasibility of converting the High Flux Isotope Reactor (HFIR) to operate with low-enriched uranium silicide dispersion (LEU_(3)Si_(2)-Al) fuel. These studies are supported by the U.S. Department of Energy National Nuclear Security Administration’s Office of Material Management and Minimization. A systematic approach employing neutronic and thermal-hydraulic analyses has been performed with the ORNL Shift and HFIR Steady State Heat Transfer Code tools, respectively, to predict reactor performance and thermal safety margins for proposed LEU_(3)Si_(2)-Al fuel designs. The design process was initiated by generating an optimized design with fabrication features identified from previous studies that result in excellent performance and safety metrics. The approach continued by substituting a single fabrication feature anticipated to be difficult to manufacture with another feature expected to perform an analogous function to that of the removed feature. Four conceptual fuel element design candidates, with various fabrication features, for conversion of HFIR with 4.8 gU/cm~(3)LEU_(3)Si_(2)-Al fuel have been generated and shown to meet pre-defined performance and safety metrics. Results to date indicate that HFIR could convert with the subject fuel system and meet performance and safety requirements if, among other considerations, fabrication of the specific design features are demonstrated and qualification of the fuel is complete under HFIR-specific conditions.
机译：正在进行工程设计研究，以评估转化高通量同位素反应器（HFIR）的可行性，以用低富集的铀硅化物分散体（Leu_（3）Si_（2）-al）燃料。这些研究得到了美国能源部核安全管理部门的材料管理办公室和最小化的支持。采用中性和热液压分析的系统方法分别采用ORNL Shift和HFIR稳态传热码工具进行了用于预测提出的Leu_（3）Si_（2）-al燃料设计的电抗器性能和热安全边缘。通过生成优化的设计来启动设计过程，该设计具有从先前研究中识别的制造功能，导致优异的性能和安全度量。通过代替单个制造特征的方法继续，预计难以使用预期的另一个特征来制造与移除的特征类似的功能。四个概念燃料元件设计候选者，具有各种制造特征，用于使用4.8 u / cm〜（3）Leu_（3）Si_（2）-al燃料，并显示出满足预定义的性能和安全指标。结果迄今为止，HFIR可以使用本主题燃料系统转换并满足性能和安全要求如果在其他考虑方面进行了制造并且在特定于HFIR的条件下完全完成燃料的资格。

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