A rotary magnetic refrigerator for superfluid helium production
- 1 November 1986
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 60 (9) , 3266-3268
- https://doi.org/10.1063/1.337716
Abstract
A new rotary-magnetic refrigerator designed to obtain superfluid helium temperatures by executing a magnetic Carnot cycle is developed. A rotor containing 12 magnetic refrigerants (gadolinium-gallium-garnet) is immersed in liquid helium at 4.2 K and rotated at constant speed in a steady magnetic field distribution. Performance tests demonstrate that the new rotary refrigerator is capable of obtaining a temperature of 1.48 K. The maximum useful cooling power obtained at 1.8 K is 1.81 W which corresponds to a refrigeration efficiency of 34%.This publication has 9 references indexed in Scilit:
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