期刊
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
卷 29, 期 8, 页码 1332-1339出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijrefrig.2006.07.013
关键词
magnetic refrigerator; heat exchanger; regenerator; material; porous medium; modelling; performance; COP
The operation behaviour of an active magnetic regenerator (AMR) with a wavy-structure, or a honeycomb-like regenerator bed was numerically investigated. The thermodynamic model was applied to a static regenerator and - in a generalized version to a rotary type. The models take two-dimensional unsteady heat conduction in the magnetic material during the four basic processes of the AMR cycle into account. The numerical results were used to determine optimal arrangements of different magnetic materials in order to obtain larger temperature spans between both ends of the porous beds. Furthermore, a first study of magnetic flux lines in a porous rotary heat exchanger was performed. (c) 2006 Elsevier Ltd and IIR. All rights reserved.
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