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

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.