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Optimization of layered regenerator of a magnetic refrigeration device
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Applied Thermodynamics and Refrigeration.ORCID iD: 0000-0001-9592-0202
KTH, School of Industrial Engineering and Management (ITM), Energy Technology.ORCID iD: 0000-0002-9902-2087
2015 (English)In: International journal of refrigeration, ISSN 0140-7007, E-ISSN 1879-2081, Vol. 57, 103-111 p.Article in journal (Refereed) Published
Abstract [en]

Magnetic refrigeration, as an alternative to vapor-compression technology, has been the subject of many recent investigations. A technique to enhance the performance of magnetic refrigerators is using layers of different materials in the regenerator of such devices. In this study the choice of magnetocaloric materials in a multi-layered packed bed regenerator is investigated in order to optimize the performance. A numerical model has been developed to simulate the packed bed in this study. Optimized packed bed designs to get maximum temperature span or maximum efficiency are different. The results indicate that maximum temperature span can be achieved by choosing the materials with the highest magnetocaloric effect in the working temperature range, while maximum Carnot efficiency is achieved by choosing materials with Curie temperatures above the average layer temperature.

Place, publisher, year, edition, pages
Elsevier, 2015. Vol. 57, 103-111 p.
Keyword [en]
Magnetic refrigeration, Magnetocaloric, Layering, Optimization, Temperature span, Efficiency
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-175372DOI: 10.1016/j.ijrefrig.2015.04.019ISI: 000361908200012ScopusID: 2-s2.0-84937408356OAI: diva2:860602

QC 20151015

Available from: 2015-10-13 Created: 2015-10-13 Last updated: 2016-05-12Bibliographically approved

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Abolhassani Monfared, BehzadPalm, Björn
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