Loading…

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...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2017-07, Vol.50 (31)
Main Authors: Govindappa, P, Trevizoli, P V, Campbell, O, Niknia, I, Christiaanse, T V, Teyber, R, Misra, S, Schwind, M A, van Asten, D, Zhang, L, Rowe, A
Format: Article
Language:English
Subjects:
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
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.
ISSN:0022-3727
1361-6463
DOI:10.1088/1361-6463/aa7a33