Multicaloric effect: Toward a breakthrough in cooling technology
Multicaloric effect: Toward a breakthrough in cooling technology
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DOI：
10.1016/j.enconman.2018.10.025
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发表时间：
2018-12-15
影响因子：
10.4
通讯作者：
Lewandowski, Daniel
中科院分区：
文献类型：
--
作者：
Czernuszewicz, Agata;Kaleta, Jerzy;Lewandowski, Daniel
热冷却技术具有成为传统蒸汽压缩技术的一种环保高效的替代技术的巨大潜力，然而，这种制冷方法仍处于研究阶段。由于冷却系统组件的成本非常高，采用受到限制。在提高系统性能的同时降低价格的一种可能性是对具有多个物理场的制冷剂材料进行刺激；multicaloric冰箱。在这里，我们首次展示了由磁热和机械热联合现象确定的多热效应。利用Ni-Mn-In Heusler合金和新型测试系统验证了该效果。得到的温度变化是独立测量的现象的总和。与仅磁热转换相比，多热量材料刺激可以在磁场降低75%的情况下获得给定的结果，与仅机械热效应相比，多热量材料刺激可以在应力降低30%的情况下获得给定的结果。这项工作证明了热制冷的巨大前景，并为更好地理解材料的多热量温度响应提供了一种方法。
Caloric cooling has significant potential to become an environmentally friendly and highly efficient alternative to conventional vapor-compression technology, however, this refrigeration method still remains in the stage of research. Adoption has been limited mainly due to the very high cost of cooling systems components. One possibility for reducing the price while improving system performance is the stimulation of a refrigerant material with more than one physical field; multicaloric refrigerators. Here we show, for the first time, the multicaloric effect determined for combined magnetocaloric and mechanocaloric phenomena. The effect was demonstrated using the Ni-Mn-In Heusler alloy and novel test system. The obtained temperature change is the sum of the independently measured phenomena. The multicaloric material stimulation can achieve a given result with 75% lower magnetic field compared to only the magnetocaloric transition and 30% lower stress relative to solely the mechanocaloric effect. This work proves the great promise of caloric refrigeration and provides a way to better understand the multicaloric temperature response of materials.