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Experimental investigation of MnFeP1−xAsx multilayer active magnetic regenerators
This paper describes experimental performance data for MnFeP1−xAsx multilayer active magnetic regenerators. Five different matrices are tested: (i) one with three layers; (ii) one with six layers; and (iii) three, eight-layer regenerators where the layer thickness is varied. The tests are performed...
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Published in: | Journal of physics. D, Applied physics Applied physics, 2017-07, Vol.50 (31) |
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Main Authors: | , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | This paper describes experimental performance data for MnFeP1−xAsx multilayer active magnetic regenerators. Five different matrices are tested: (i) one with three layers; (ii) one with six layers; and (iii) three, eight-layer regenerators where the layer thickness is varied. The tests are performed using a dual regenerator bespoke test apparatus based on nested Halbach permanent magnets. (PM II test apparatus at the University of Victoria.) Operating variables include displaced volume (3.8-12.65 cm3), operating frequency (0.5-0.8 Hz) and hot-side rejection temperature (293-313 K). The results are mainly reported in terms of zero net load temperature span as a function of rejection temperature; a few tests with non-zero applied load are also presented. A maximum temperature span of 32 K is found for an eight-layer regenerator, which is similar to a previous work performed with gadolinium in the same experimental apparatus. |
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ISSN: | 0022-3727 1361-6463 |
DOI: | 10.1088/1361-6463/aa7a33 |