Magnetic Field and Heat Transfer Analysis of Magnetic Refrigeration Systems with Different Magnet Array Geometries
Başlık:
Magnetic Field and Heat Transfer Analysis of Magnetic Refrigeration Systems with Different Magnet Array Geometries
Yazar:
Yanik, Erim, author.
ISBN:
9780355991260
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (111 pages)
Genel Not:
Source: Masters Abstracts International, Volume: 57-06M(E).
Advisors: Serdar Celik Committee members: Abdullatif Hamad; Nima Lotfi; Terry Yan.
Özet:
Magnetic refrigeration is one of the alternative cooling technologies that is environmental friendly and has high theoretical coefficient of performance values. This thesis study focuses on magnetic field and heat transfer enhancement of a reciprocating-type magnetic refrigeration system. A set of NdFeB 52 MGOe permanent magnets were employed to form a Halbach magnet array. Gadolinium (Gd) was used as the magnetocaloric material. It was placed concentrically within the Halbach array aperture with the working fluid running through the gap in between the magnet assembly and Gd yielding annular flow. Three different annular flow geometries namely; circular, octagonal and hexagonal cross-sections were studied. Magnetization process was analyzed theoretically, numerically and experimentally for k = 4 configuration. Numerical analysis was done by Finite Element Method Magnetics (FEMM), theoretical analysis was conducted by a mathematical model, and experimental analysis was performed on a Halbach magnet array. Obtained magnetic field results were used to calculate corresponding entropy changes and heat flux values. These values were compared to numerical heat transfer results from ANSYS and a close agreement between results were observed.
Notlar:
School code: 0509
Tüzel Kişi Ek Girişi:
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Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(691337.1) | 691337-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
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