利用永磁体的室温磁制冷机性能研究  

Experimental study on a prototype of room temperature active magnetic refrigeration using permanent magnets

作　　者：姚冠辉[1] 栗鹏[1] 公茂琼[1] 吴剑峰[1] 

机构地区：[1]中国科学院理化技术研究所

出　　处：《低温工程》2005年第6期42-44,共3页Cryogenics

基　　金：国家863项目(2002AA324010);中国科学院重要方向性项目(KJCX2-SW-W12-2)资助

摘　　要：介绍了利用1.5 T永磁体驱动,氦气作为换热流体,采用主动式磁回热器的室温磁制冷机的实验研究情况。在现有实验装置下,通过调节气体压力与循环频率,高低温端最大达到了10.7 K的温差,研究结果为室温磁制冷机的设计以及进一步发展提供了参考。An investigation of an active magnetic refrigerator has been carried out for room temperature refrigeration with an average 1.5 T magnetic field supplied by permanent magnets. Helium gas was used as a heat transfer fluid. Using this prototype, a preliminary maximal temperature span of 10.7 K was achieved by adjusting the pressure of helium and the operation frequency. The results provide useful data for future magnetic refrigerator design, and provide a helpful reference for future development of room temperature active magnetic refrigerator.

关 键 词：室温磁制冷机 永磁体 AMR 

分 类 号：TB651[一般工业技术—制冷工程]