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Erschienen in:
1986 | OriginalPaper | Buchkapitel
Magnetic Refrigeration Study at CEA Grenoble
verfasst von : Gérard M. Claudet
Erschienen in: Advances in Cryogenic Engineering
Verlag: Springer US
Enthalten in: Professional Book Archive
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Two kinds of applications are considered for magnetic refrigeration, first in the 1.8 K range mainly for He II cooling of superconductors and second for He I refrigeration with precooling near 20 K. At He II temperatures, refrigeration by a Carnot cycle has been investigated and analysed. We give a survey of the results which demonstrate the capability of magnetic refrigeration to attain high thermodynamic efficiency. More interest is now devoted to He I cooling for which we compare magnetic refrigeration to the standard existing solutions. For temperatures higher than 10 K, we discuss the interest and the constraints of cycles with internal heat exchange. Analysis of various configurations is given to explain the choice of a new experiment being built.