Cryogenic Active Magnetic Regenerator Test Apparatus

Tura, A.; Roszmann, J.; Dikeos, J.; Rowe, A.
April 2006
AIP Conference Proceedings;2006, Vol. 823 Issue 1, p985
Conference Proceeding
An AMR Test Apparatus (AMRTA) used in experiments near room-temperature required a number of modifications to allow for testing at cryogenic temperatures and with a 5 T magnetic field. The impacts of parasitic heat leaks, frictional heat generation, and eddy current heating in the AMRTA are analyzed. A low temperature gas circulation (LTGC) system to control the operating temperature was developed. The LTGC consists of a GM cryocooler coupled to a compressor and helium circuit which circulates fluid through a set of heat exchangers and flexible transfer lines connected to the AMRTA. Design features are discussed as is some initial test data. © 2006 American Institute of Physics


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