Generating the optimal magnetic field for magnetic refrigeration

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Abstract

In a magnetic refrigeration device the magnet is the single most expensive component, and therefore it is crucially important to ensure that an effective magnetic field as possible is generated using the least amount of permanent magnets. Here we present a method for calculating the optimal remanence distribution for any desired magnetic field. The method is based on the reciprocity theorem, which through the use of virtual magnets can be used to calculate the optimal remanence distribution. Furthermore, we present a method for segmenting a given magnet design that always results in the optimal segmentation, for any number of segments specified. These two methods are used to determine the optimal magnet design of a 12-piece, two-pole concentric cylindrical magnet for use in a continuously rotating magnetic refrigeration device.
Original languageEnglish
Title of host publicationProceedings of the 7th IIF-IIR International Conference on Magnetic Refrigeration
Number of pages4
PublisherInternational Institute of Refrigeration
Publication date2016
Publication statusPublished - 2016
Event7th IIF-IIR International Conference on Magnetic Refrigeration - Torino, Italy
Duration: 11 Sep 201614 Sep 2016
Conference number: 7

Conference

Conference7th IIF-IIR International Conference on Magnetic Refrigeration
Number7
CountryItaly
CityTorino
Period11/09/201614/09/2016

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