Abstract A sodium-to-air heat exchanger having M-shape finned-tube banks was designed and evaluated to validate the design code for the Prototype Generation IV Sodium-cooled Fast Reactor Development (PGSFR) using a separate effect sodium test facility called SELFA (Sodium thermal–hydraulic Experiment Loop for Finned-tube Sodium-to-Air heat exchanger). A model heat exchanger was newly designed to represent the reference heat exchanger (i.e., Forced-draft sodium-to-air heat exchanger, FHX) of the PGSFR with a reduced power-scale. Several preliminary evaluations with the commercial CFD tool that considered the 3-D effect which cannot be observed by the design (1-D) code took place. The final design of the model FHX (M-FHX) was also analyzed by the CFD tool to check the performance and its behavior. The analysis results were compared with the experiment results, and they showed reasonable agreement in the view of similarities between two heat exchangers (FHX and M-FHX).

中文翻译：

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钠气试验装置翅片管式钠气换热器设计及热工水力评价

摘要 设计并评估了具有 M 形翅片管束的钠空气热交换器，以使用称为 SELFA 的单独效应钠测试设备验证第四代原型钠冷快堆开发 (PGSFR) 的设计规范。翅片管钠-空气换热器的钠热-水力实验回路）。新设计的模型换热器代表 PGSFR 的参考换热器（即强制通风钠-空气换热器，FHX），具有降低的功率标度。使用商业 CFD 工具进行了几次初步评估，考虑了设计 (1-D) 代码无法观察到的 3-D 效果。模型 FHX (M-FHX) 的最终设计也通过 CFD 工具进行分析，以检查性能及其行为。