Numerical Modeling of Multi-Material Active Magnetic Regeneration

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    Abstract

    Magnetic refrigeration is a potentially environmentally-friendly alternative to vapour compression technology that is presented in this paper. The magnetocaloric effect in two magnetocaloric compounds in the La(Fe,Co,Si)13 series is presented in terms of their adiabatic temperature change and the specific heat as a function of temperature at constant magnetic field. A 2.5-dimensional numerical model of an active magnetic regenerative (AMR) refrigerator device is presented. The experimental AMR located at Risø DTU has been equipped with a parallel-plate based regenerator made of the two materials. Experimental zero heat-load temperature spans are presented for different operating conditions and the results are compared to predictions of the numerical model. It is concluded that the model reproduces the experimental tendencies and when including thermal parasitic losses to ambient and the predictions from the model are within 1.5 K of the experimental results.
    Original languageEnglish
    Title of host publicationExHFT-7 : 7th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics
    Number of pages2458
    PublisherAGH University of Science and Technology Press
    Publication date2009
    Edition1
    Pages515-522
    ISBN (Print)978-83-7464-235-4
    Publication statusPublished - 2009
    Event7th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics - Krakow, Poland
    Duration: 28 Jun 20093 Jul 2009
    Conference number: 7
    http://www.exhft-7.agh.edu.pl/

    Conference

    Conference7th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics
    Number7
    Country/TerritoryPoland
    CityKrakow
    Period28/06/200903/07/2009
    Internet address

    Keywords

    • active magnetic regeneration
    • Magnetic refrigeration
    • Fuel Cells and hydrogen
    • magnetocaloric effect
    • numerical modeling

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