Design and Experiment of a Rotary Room Temperature Permanent Magnet Refrigerator

Author

Han, Lei ; Li, Xiaohang ; Xia, Dong

Author_Institution

Key Lab. of Appl. Supercond., Chinese Acad. of Sci., Beijing, China

Volume

20

Issue

3

fYear

2010

fDate

6/1/2010 12:00:00 AM

Firstpage

870

Lastpage

873

Abstract

A new type of rotary magnetic refrigerator using annular Nd-Fe-B permanent magnets as the source of the magnetic field is proposed here. Its magnetic field at the air gap is about 1.2 T. Gadolinium (Gd) based magnetocaloric rare earth material is utilized as the refrigerants in this device. The structure of the device and the torque of the driving motor were carefully designed and selected. This rotor of refrigerator is enclosed in the annular magnet, so it can run stably. This work is referential to the progresses for the room temperature magnetic refrigeration.

Keywords

air gaps; iron compounds; magnetic cooling; magnetic field effects; neodymium compounds; permanent magnets; refrigerants; refrigerators; rotors; torque; Nd-Fe-B; air gap; annular permanent magnets; device structure; driving motor; gadolinium; magnetic field; magnetocaloric rare earth material; refrigerants; room temperature magnetic refrigeration; rotary magnetic refrigerator; rotary room temperature; temperature 293 K to 298 K; torque; Magnetic refrigeration; Nd–Fe–B permanent magnet; rare earth material; room temperature;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2041916

Filename

5443619