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基于氯化物熔盐快堆的零功率实验停堆及控制系统的中子学设计。

Neutronics design of shutdown and control systems for a Zero Power Experiments of chloride-based molten salt fast reactor.

机构信息

School of Engineering, University of Liverpool, Liverpool, United Kingdom.

School of Engineering, Cardiff University, The Parade, Wales, United Kingdom.

出版信息

PLoS One. 2024 Oct 16;19(10):e0309928. doi: 10.1371/journal.pone.0309928. eCollection 2024.

DOI:10.1371/journal.pone.0309928
PMID:39413066
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11482688/
Abstract

Nuclear power's role as a reliable, baseload, low-carbon source and its importance in achieving clean energy goals are being increasingly recognized with growing urgency around decarbonization of the global energy systems. However, to deliver a long-term sustainable solution, it is essential to develop innovative nuclear technologies for improving the fuel utilization and reducing the nuclear waste disposal challenge. Zero Power Reactors (ZPR) are an essential initial step for developing new nuclear technologies because they allow for testing and refinement in a safe environment before large-scale deployment. This paper discusses the design of a ZPR experiments for the development of iMAGINE, a novel chloride-based molten salt reactor technology. The paper presents a detailed analysis of the neutronic design for the shutdown and control systems of an experimental ZPR based on the iMAGINE molten salt reactor technology. The study concludes that a split-core design with a lower corner reflector as an extension of the lower annular reflector offers the most robust ZPR configuration, offering optimum operational margins and maneuverability. This design ensures safety, regulatory compliance, and sufficient control and shutdown performance for the successful development of the iMAGINE technology.

摘要

核能作为一种可靠的、基荷、低碳能源，对于实现清洁能源目标具有重要意义，在全球能源系统脱碳方面的重要性日益凸显。然而，为了提供长期可持续的解决方案，开发创新的核能技术以提高燃料利用率和减少核废料处理挑战至关重要。零功率反应堆 (ZPR) 是开发新核能技术的必要初始步骤，因为它们可以在大规模部署之前在安全环境中进行测试和改进。本文讨论了为开发新型基于氯化物的熔盐堆技术 iMAGINE 而设计的 ZPR 实验。本文详细分析了基于 iMAGINE 熔盐堆技术的实验性 ZPR 的停堆和控制系统的中子学设计。研究得出结论，采用分体式设计，将下部角反射器作为下部环形反射器的延伸，提供了最稳健的 ZPR 配置，为 iMAGINE 技术的成功开发提供了最佳的运行裕度和可操作性。该设计确保了安全性、法规遵从性以及足够的控制和停堆性能，为 iMAGINE 技术的成功开发提供了保障。

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