Abstract Conventional integral effect test facilities were constructed to enable the precise observation of thermal–hydraulic phenomena and reactor behaviors under postulated accident conditions to prove reactor safety. Although these facilities improved the understanding of thermal–hydraulic phenomena and reactor safety, applications of new technologies and their performance tests have been limited owing to the cost and large scale of the facilities. Various nuclear technologies converging 4th industrial revolution technologies such as artificial intelligence, drone, and 3D printing, are being developed to improve plant management strategies. Additionally, new conceptual passive safety systems are being developed to enhance reactor safety. A new integral effect test facility having a noticeable scaling ratio, i.e., the (UNIST reactor innovation loop (URI-LO), is designed and constructed to improve the technical quality of these technologies by performance and feasibility tests. In particular, the URI-LO, which is constructed using a transparent material, enables better visualization and provides physical insights on multidimensional phenomena inside the reactor system. The facility design based on three-level approach is qualitatively validated with preliminary analyses, and its functionality as a test facility is confirmed through a series of experiments. The design feature, design validation, functionality test, and future utilization of the URI-LO are introduced.

中文翻译：

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核创新平台 URI-LO 透明整体效应测试设施的设计和运行

摘要 建造了传统的整体效应试验设施，以实现对假定事故条件下的热-水现象和反应堆行为的精确观察，以证明反应堆的安全性。尽管这些设施提高了对热工水力现象和反应堆安全的理解，但由于设施的成本和规模大，新技术的应用及其性能测试受到限制。各种核技术融合了人工智能、无人机和 3D 打印等第四次工业革命技术，正在开发以改进工厂管理策略。此外，正在开发新的概念性被动安全系统以提高反应堆安全。一种新的积分效应测试工具，具有显着的缩放比例，即，它使用透明材料制成，可以实现更好的可视化，并提供对反应堆系统内部多维现象的物理洞察。基于三级方法的设施设计通过初步分析得到定性验证，其作为测试设施的功能通过一系列实验得到证实。介绍了 URI-LO 的设计特性、设计验证、功能测试和未来使用。它使用透明材料制成，可以实现更好的可视化，并提供对反应堆系统内部多维现象的物理洞察。基于三级方法的设施设计通过初步分析得到定性验证，其作为测试设施的功能通过一系列实验得到证实。介绍了 URI-LO 的设计特性、设计验证、功能测试和未来使用。