Abstract
The principle of the Active Magnetic Regenerator (AMR) is tested with an experimental refrigerator designed to operate within the temperature range of about 4 to 80 K. Applications, including helium and hydrogen liquefaction and hydrogen slush generation, are envisioned. The device uses a single moveable superconducting solenoidal magnet in persistent mode to alternately charge and discharge two in-line beds of magnetic material. Between magnet motions, a double-acting piston displacer moves heat transfer fluid in the form of helium gas through the beds, absorbing heat at the cold heat exchanger and rejecting heat at the hot heat exchanger.
A description of the refrigerator and performance results are presented. Comparisons to a detailed AMR model are shown.
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© 1992 Springer Science+Business Media New York
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DeGregoria, A.J., Feuling, L.J., Laatsch, J.F., Rowe, J.R., Trueblood, J.R., Wang, A.A. (1992). Test Results of an Active Magnetic Regenerative Refrigerator. In: Fast, R.W. (eds) Advances in Cryogenic Engineering. Advances in Cryogenic Engineering, vol 37. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3368-9_14
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DOI: https://doi.org/10.1007/978-1-4615-3368-9_14
Publisher Name: Springer, Boston, MA
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