Design Concepts for a Continuously Rotating Active Magnetic Regenerator

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    Abstract

    Design considerations for a prototype magnetic refrigeration device with a continuously rotating AMR are presented. Building the AMR from stacks of elongated plates of the perovskite oxide material La0.67Ca0.33-xSrxMn1.05O3, gives both a low pressure drop and allows grading of the Curie temperature along the plates. This may be accomplished by a novel technique where a compositionally graded material may be tape cast in one piece. The magnet assembly is based on a novel design strategy, to create alternating high- and low magnetic field regions within a magnet assembly. Focus is on maximising the magnetic field in the high field regions but also, importantly, minimising the flux in the low field regions. The design is iteratively optimised through 3D finite element magnetostatic modelling.
    Original languageEnglish
    Title of host publication4th International Conference of IIR on Magnetic Refrigeration at Room Temperature
    Number of pages524
    Place of PublicationParis
    PublisherInternational Institute of Refrigeration
    Publication date2010
    Pages351-358
    Publication statusPublished - 2010
    Event4th International Conference of IIR on Magnetic Refrigeration at Room Temperature - Baotou, China
    Duration: 23 Aug 201028 Aug 2010
    Conference number: 4

    Conference

    Conference4th International Conference of IIR on Magnetic Refrigeration at Room Temperature
    Number4
    CountryChina
    CityBaotou
    Period23/08/201028/08/2010

    Keywords

    • Magnetic refrigeration
    • Fuel Cells and Hydrogen

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