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首页> 外文期刊>International Journal of Refrigeration >Effects of relative orientation of magnetocaloric inserts with the magnetic flux
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Effects of relative orientation of magnetocaloric inserts with the magnetic flux

机译：磁热插入物的相对取向与磁通量的关系

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摘要

This paper presents the study of the magnetic change of the magnetic flux density into the magnetocaloric materials (MCMs). The MCMs are shaped in thin parallel plates separated by a fluid forming together an insert. It is shown that keeping all the parameters equal, the unique modification of the orientation of the insert induces a change of the magnetic flux density into the magnetocaloric materials. Like all paramagnetic and ferromagnetic materials, the MCMs have variable magnetic permeability according to the density of flux that crosses them. The influence of a thermal circuit on a permanent magnetic circuit assembly is also evaluated. In order to ensure the heat exchange between the magnetocaloric materials and the outside space, the use of a heat transfer fluid is needed. The heat transfer fluid goes along the mini plates and is also placed inside the magnetic field. Because a fluid is generally a diamagnetic element, this increases the total magnetic reluctance of the assembly. Two different configurations named serial and parallel have been studied and evaluated in order to find the configuration that causes minimal disturbances to the magnetic flux and thus increases the magnetocaloric effect (MCE). Both configurations were also compared in respect to the induction obtained inside the vacuum gap of the magnet assembly.
机译：本文介绍了磁热材料（MCM）中的磁通密度的磁变化研究。 MCM在薄的平行板中成形，并通过流体分开，一起形成插入件。结果表明，在保持所有参数相等的情况下，插入件方向的独特修改会引起磁热材料中磁通密度的变化。像所有顺磁性和铁磁性材料一样，MCM根据穿过它们的磁通密度而具有可变的磁导率。还评估了热电路对永磁电路组件的影响。为了确保磁热材料与外部空间之间的热交换，需要使用传热流体。传热流体沿着微型板流动，并且也被放置在磁场内部。因为流体通常是抗磁性元素，所以这增加了组件的总磁阻。为了找到对磁通量造成最小干扰从而增加磁热效应（MCE）的配置，已经研究并评估了两种不同的配置，分别称为串行和并行。还就磁体组件的真空间隙内部获得的感应进行了比较。

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