Abstract

To date, the choice of the geometry of a magnetic cooling cell is a relevant problem in the field of magnetic refrigeration. In this study, the heat transfer processes in three-dimensional magnetic cooling cells containing Fe–Rh microwires are studied within the theoretical simulation approaches. The velocities of heat carrier flow velocities of 2.5 and 0.7 m/s are considered. It is found that the relaxation times are 0.8 and 1.4 ms for a flow velocity of 2.5 m/s, and 1.8 and 3.3 ms for a flow velocity of 0.7 m/s in the case of using microwire diameters of 10 and 50 µm, respectively. It is shown that the use of Fe–Rh microwires in magnetic cooling cells can be promising for magnetic refrigeration technology.

中文翻译：

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含 Fe-Rh 微丝系统中传热过程的研究

摘要

迄今为止，磁冷却单元的几何形状的选择是磁制冷领域中的一个相关问题。在这项研究中，在理论模拟方法中研究了包含 Fe-Rh 微线的三维磁冷却单元中的传热过程。考虑热载体流速为 2.5 和 0.7 m/s。发现在使用直径为 10 和 50 µm 的微丝的情况下，弛豫时间分别为 0.8 和 1.4 ms，流速为 2.5 m/s，流速为 0.7 m/s 时为 1.8 和 3.3 ms . 结果表明，在磁冷却电池中使用 Fe-Rh 微线对于磁制冷技术是很有前景的。