磁制冷核心问题及高效利用新方式

旋转式磁制冷机是目前室温磁制冷机的主流技术方案,本文针对制约现有磁制冷机的关键因素,综述了磁回热器的高效传热、多组磁回热器的流路控制、多层磁工质复叠制冷及磁体、系统集成等核心问题的最新研究进展并提出了发展方向,深入总结了通过复合制冷的方式拓展磁制冷应用范围及制冷性能的途径及潜力,以助于明确未来磁制冷的研究方向,为研发高性能磁制冷机提供思路。

Key Challenges and New Approaches for Efficient Applications of Magnetocaloric Cooling

Rotarymagnetocaloric cooling system is the mainstream technical solution of magnetocaloric cooling technology. However, there are multiple key issues constraining their performance. To address these key challenges, this paper discussesand reviews the latest progress in research and proposes future research directions for the following four aspects: highly efficient heat transfer of active magnetocaloric regenerators; flow control among multiple regenerators; multi-layered regenerators; and magnetic assembly and system integrations.This paper also addresses multiple approaches and thoroughly investigates theirpotential for intrinsically improving the cooling performance and scope of application via a combination of magnetocaloric and other cooling technologies.Discussion of the key challengessummarizedin this paper will also help to clarify the future research directions of magnetocaloric cooling, and provide ideas for the development of highly efficient magnetocaloric cooling systems.