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Scaling Methodology for Integral Effects Tests in Support of Fluoride Salt-Cooled High-Temperature Reactor Technology
Nuclear Science and Engineering ( IF 1.2 ) Pub Date : 2020-02-18 , DOI: 10.1080/00295639.2019.1710976
Nicolas Zweibaum 1 , Edward Blandford 1 , Craig Gerardi 1 , Per Peterson 1
Affiliation  

Abstract The capability to validate integral transient response models is of critical importance for licensing new reactor designs. The Kairos Power testing program has developed a methodology to design scaled experiments that predict the thermal fluid behavior of the Kairos Power Fluoride Salt–Cooled High-Temperature Reactor (KP-FHR). Such experiments will be used as part of the assessment base of evaluation models supporting KP-FHR safety analysis. The Hierarchical Two-Tiered Scaling (H2TS) methodology was selected for Kairos Power scaling efforts that will be applied to integral effects tests (IETs) for system-level testing. In this paper, the scaling methodology is presented for thermal fluid IETs that will model the KP-FHR primary heat transport system under normal operations and transient conditions involving transition to natural circulation. This paper provides a basis for using surrogate fluids for testing that requires the thermal fluid performance of the KP-FHR primary coolant lithium fluoride–beryllium fluoride [2LiF/BeF2 (Flibe)] to be replicated. Kairos Power intends to use heat transfer oil as a surrogate fluid for Flibe in thermal fluid IETs. This paper demonstrates that this class of surrogate fluids is an acceptable substitute for Flibe salt for some types of scaled IETs and that the principal thermal fluid properties can be properly scaled with minor distortions over the range of conditions expected for both normal and off-normal operating conditions of the KP-FHR.

中文翻译:

用于支持氟化盐冷却高温反应堆技术的整体效应测试的缩放方法

摘要 验证整体瞬态响应模型的能力对于许可新的反应堆设计至关重要。Kairos Power 测试计划开发了一种方法来设计规模化实验,预测 Kairos Power 氟化盐冷却高温反应堆 (KP-FHR) 的热流体行为。此类实验将作为支持 KP-FHR 安全分析的评估模型的评估基础的一部分。Kairos Power 缩放工作选择了分层两层缩放 (H2TS) 方法,该方法将应用于积分效应测试 (IET) 以进行系统级测试。在本文中,介绍了热流体 IET 的缩放方法,该方法将模拟正常运行和涉及过渡到自然循环的瞬态条件下的 KP-FHR 主要热传输系统。本文为使用替代流体进行测试提供了基础,该测试需要复制 KP-FHR 一次冷却剂氟化锂-氟化铍 [2LiF/BeF2 (Flibe)] 的热流体性能。Kairos Power 打算在导热油 IET 中使用导热油作为 Flibe 的替代流体。本文证明,对于某些类型的 IET,此类替代流体是 Flibe 盐的可接受替代品,并且主要热流体特性可以在正常和非正常操作的预期条件范围内适当地按比例缩放KP-FHR 的条件。本文为使用替代流体进行测试提供了基础,该测试需要复制 KP-FHR 一次冷却剂氟化锂-氟化铍 [2LiF/BeF2 (Flibe)] 的热流体性能。Kairos Power 打算在导热油 IET 中使用导热油作为 Flibe 的替代流体。本文证明,对于某些类型的 IET,此类替代流体是 Flibe 盐的可接受替代品,并且主要热流体特性可以在正常和非正常操作的预期条件范围内适当地按比例缩放KP-FHR 的条件。本文为使用替代流体进行测试提供了基础,该测试需要复制 KP-FHR 一次冷却剂氟化锂-氟化铍 [2LiF/BeF2 (Flibe)] 的热流体性能。Kairos Power 打算在导热油 IET 中使用导热油作为 Flibe 的替代流体。本文证明,对于某些类型的 IET,此类替代流体是 Flibe 盐的可接受替代品,并且主要热流体特性可以在正常和非正常操作的预期条件范围内适当地按比例缩放KP-FHR 的条件。
更新日期:2020-02-18
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