Progress in magnetic refrigeration and future challenges

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Abstract

Since a regenerative magnetic cooling cycle was first demonstrated in 1976, many developments have been made in the areas of system modeling, magnetocaloric materials and system design. Systems have gone from laboratory demonstrators using superconducting magnets to near commercial systems using more practical permanent magnets and use multi-material regenerators. Novel magnetocaloric material systems show potentially higher magnetocaloric properties than gadolinium and its alloys while reducing the cost of the raw materials. Detailed numerical models have been developed and show that magnetic refrigerators have the potential for high efficiency. However, reported device COPs for laboratory devices are still well below commercially available vapor compression systems. In order to significantly improve AMR efficiency, several loss mechanisms must be reduced and other aspects of system design, such as the drive system, must be better understood. Here, some major loss mechanisms are presented and modeling tools and design solutions are presented. Other challenges that must be overcome before the technology can become commercially viable are also discussed.
Original languageEnglish
Title of host publicationProceedings of the 6th IIF-IIR international Conference on Magnetic Refrigeration
Number of pages5
PublisherInternational Institute of Refrigeration
Publication date2014
Publication statusPublished - 2014
Event6th IIR/IIF International Conference on Magnetic Refrigeration - Fairmont Empress Conference Center, Victoria, Canada
Duration: 7 Sep 201410 Sep 2014
http://www.iesvic.uvic.ca/events/ThermagVI/

Conference

Conference6th IIR/IIF International Conference on Magnetic Refrigeration
LocationFairmont Empress Conference Center
CountryCanada
CityVictoria
Period07/09/201410/09/2014
Internet address

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