Abstract
An Active Magnetic Regenerator (AMR.) is designed to operate in the 1.8 K to 4.7 K range using a particle bed of gadolinium gallium garnet (GGG) as the magnetic material and liquid helium as the heat transfer fluid. A detailed mode] of the design is described in which all relevant physical and material properties are included. Using conservative operating parameters, a 100 W device is possible with COP efficiency relative to Carnot in the 40 to 50% range and a bed volume of less than 5 liters. In addition to its compact nature and high efficiency, the design offers the advantages of having only two moving parts operating at low speed, and operating pressure greater than one atmosphere.
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© 1990 Springer Science+Business Media New York
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Degregoria, A.J. et al. (1990). Preliminary Design of a 100 W 1.8 K to 4.7 K Regenerative Magnetic Refrigerator. In: Fast, R.W. (eds) Advances in Cryogenic Engineering. Advances in Cryogenic Engineering, vol 35. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0639-9_135
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DOI: https://doi.org/10.1007/978-1-4613-0639-9_135
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