Analysis of Future Fuel/Cladding Systems for Light Water Reactor Use

轻水反应堆未来燃料/包壳系统分析

• 批准号: 2786565
• 金额: --
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2786565
• 关键词: Analysis; Future; Fuel; Cladding; Systems

Accident Tolerant Fuels could potentially provide a step-change in nuclear energy safety and economics, by removing the need for safety systems and providing inherent safety. One potential route to this is by offsetting an increased cladding cost with a fuel material containing more uranium, reducing the required enrichment or extending fuel life. A number of potential high-density fuel materials have been proposed including U3Si2, UN and UB2 as well as modifications to UO2 to improve its thermal conductivity via the addition of a secondary phase. Likewise, a number of cladding options are under consideration, including coated zirconium, FeCrAl alloys and SiC-SiC ceramic composites. This work will explore the interactions between proposed materials under high temperatures, and within high-temperature high-pressure water conditions. It will attempt to identify systems of long-term interest, as well as those combinations which are incompatible. The project will be supported by Rolls-Royce as an industrial sponsor.

通过消除对安全系统的需求并提供固有的安全性，事故容忍燃料可能会在核能安全和经济方面带来巨大的变化。实现这一目标的一个潜在途径是使用含有更多铀的燃料材料来抵消增加的包壳成本，减少所需的浓缩或延长燃料寿命。人们提出了许多潜在的高密度燃料材料，包括 U3Si2、UN 和 UB2，以及对 UO2 进行改性，通过添加第二相来提高其导热性。同样，许多包层选项也在考虑之中，包括涂层锆、FeCrAl 合金和 SiC-SiC 陶瓷复合材料。这项工作将探索高温下和高温高压水条件下所提出的材料之间的相互作用。它将尝试识别具有长期利益的系统以及那些不兼容的组合。该项目将得到劳斯莱斯作为工业赞助商的支持。