A 2-dimensional numerical model of a room temperature operating Active Magnetic Regenerator (AMR) that comprises of a regenerator, hot and cold heat exchangers, heat transfer fluid is developed. The regenerator is made of a magnetocaloric material (MCM) which heats up upon applying a magnetic field, H, and cools down when the field is removed; thus, making it the most essential part of an AMR. The model takes experimentally measured ∆T_ad(H,T) and the C_p(H,T) data as input and provides quantitative performance metrics of the magnetic cooling system, such as ∆T_span and the cooling load, as output. With this model, it is possible to assess a wide range of MCMs in an AMR. 4 different MCMs were investigated using this model in terms of their ∆T_span and the cooling loads—LaFe_10.96Co_0.97Si_1.07, MnFeP_(1-x)As_(x) and AlFe₂B₂ and Gd. During the screening of MCMs, all the important operating conditions of the device were fixed such as the fluid flow rate, ambient temperature, cycle duration, magnetic field strength. Our results indicate that Gd exhibits the maximum ∆T_span with respectable cooling load, while AlFe₂B₂ generates the lowest ∆T_span. Even though LaFeCoSi compound did not perform as well as Gd, it could be the MCM choice for the realization of magnetic refrigeration on a global scale due to its much lower cost.

建立了室温运行的有源电磁蓄热器（AMR）的二维数值模型，该模型包括蓄热器，冷热热交换器，传热流体。蓄热器由磁热材料（MCM）制成，该材料在施加磁场H时会发热，在去除磁场后会冷却。因此，使其成为AMR最重要的部分。该模型以实验测量的∆T _ad（H，T）和C _p（H，T）数据作为输入，并提供磁性冷却系统的定量性能指标，例如∆T_跨度和冷却负荷作为输出。使用此模型，可以评估AMR中的多种MCM。使用该模型研究了4种不同的MCM的ΔT_跨度冷却负荷为LaFe _10.96 Co _0.97 Si _1.07，MnFeP _（1-x） As _（x）和AlFe ₂ B ₂和Gd。在MCM的筛选过程中，设备的所有重要操作条件都已固定，例如流体流速，环境温度，循环持续时间，磁场强度。我们的结果表明，在适当的冷却负载下，Gd表现出最大的ΔT_跨度，而AlFe ₂ B ₂产生的最小ΔT_跨度。尽管LaFeCoSi化合物的性能不如Gd，但由于其成本低得多，因此可能成为实现全球磁性制冷的MCM选择。