Experimental study on the performance of a room temperature magnetic refrigerator using permanent magnets

An investigation of a room temperature active magnetic refrigerator was carried out in this work. An experimental rig was built, in which two reciprocating regenerative beds packed with 1167.4 g of gadolinium were used, helium gas was used as a heat transfer fluid, and an average 1.5 T magnetic fiel...

Full description

Saved in:
Bibliographic Details
Published inInternational journal of refrigeration Vol. 29; no. 8; pp. 1267 - 1273
Main Authors Yao, G.H., Gong, M.Q., Wu, J.F.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.12.2006
Subjects
Aimant
Champ magnétique
Experiment
Expérimentation
Magnet
Magnetic field
Magnetic refrigerator
Magnetism
Magnétisme
Material
Matériau
Regeneration
Réfrigérateur magnétique
Régénération
Matériau
Experiment
Magnet
Champ magnétique
Aimant
Réfrigérateur magnétique
Material
Expérimentation
Magnétisme
Regeneration
Régénération
Magnetic refrigerator
Magnetism
Performance
Magnetic field
Online AccessGet full text

Cover

More Information
Summary:An investigation of a room temperature active magnetic refrigerator was carried out in this work. An experimental rig was built, in which two reciprocating regenerative beds packed with 1167.4 g of gadolinium were used, helium gas was used as a heat transfer fluid, and an average 1.5 T magnetic field was supplied by permanent magnets. With this apparatus, the influence of the gas pressure, the operating frequency and the temperature range were studied systematically. The lowest no heat load temperature of −2.79 °C at the cold end heat exchanger and a maximum no heat load temperature span of 42.28 °C were obtained. A maximum cooling power of 51.3 W was achieved over a temperature span of 18.16 °C. The results in this study provide useful data for future design and development of room temperature magnetic refrigerators.
ISSN:0140-7007
1879-2081
DOI:10.1016/j.ijrefrig.2006.07.010