A. Rowe, A. Tura, J. Weisend, John Barclay, S. Breon, J. Demko, M. Dipirro, J. Kelley, Peter Kittel, A. Klebaner, A. Zeller, M. Zagarola, S. V. Van Sciver, A. Rowe, J. Pfotenhauer, Tom Peterson, J. Lock
{"title":"CRYOGENIC TESTING OF AN ACTIVE MAGNETIC REGENERATIVE REFRIGERATOR","authors":"A. Rowe, A. Tura, J. Weisend, John Barclay, S. Breon, J. Demko, M. Dipirro, J. Kelley, Peter Kittel, A. Klebaner, A. Zeller, M. Zagarola, S. V. Van Sciver, A. Rowe, J. Pfotenhauer, Tom Peterson, J. Lock","doi":"10.1063/1.2908486","DOIUrl":null,"url":null,"abstract":"An AMR test apparatus has been developed for testing magnetic regenerators at temperatures ranging from room-temperature to 20 K. Near 300 K, no-load temperature spans over 80 K have been produced using regenerators composed of two and three different magnetocaloric materials. Modifications to the apparatus have been performed to allow testing at cryogenic temperatures. Initial tests near 80 K using magnetic fields of 5 T are presented using an AMR composed of Gd5Si0.33Ge3.67. A no-load temperature span of ∼8 K is achieved. The operating point is established using liquid nitrogen flow through the shell-side of the warm heat exchangers of the AMR. Design characteristics of the test apparatus, problems encountered, and modifications for improving experimental results are discussed.","PeriodicalId":80359,"journal":{"name":"Advances in cryogenic engineering","volume":"985 1","pages":"1292-1298"},"PeriodicalIF":0.0000,"publicationDate":"2008-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1063/1.2908486","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in cryogenic engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1063/1.2908486","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
An AMR test apparatus has been developed for testing magnetic regenerators at temperatures ranging from room-temperature to 20 K. Near 300 K, no-load temperature spans over 80 K have been produced using regenerators composed of two and three different magnetocaloric materials. Modifications to the apparatus have been performed to allow testing at cryogenic temperatures. Initial tests near 80 K using magnetic fields of 5 T are presented using an AMR composed of Gd5Si0.33Ge3.67. A no-load temperature span of ∼8 K is achieved. The operating point is established using liquid nitrogen flow through the shell-side of the warm heat exchangers of the AMR. Design characteristics of the test apparatus, problems encountered, and modifications for improving experimental results are discussed.
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