Numerical analysis of magnetic field and heat transfer of a reciprocating magnetocaloric regenerator using a halbach magnet array

Basit Öğe Kaydı
dc.contributor.authorAkiş T.
dc.contributor.authorHamad A.
dc.contributor.authorEzan M.A.
dc.contributor.authorYanik E.
dc.contributor.authorYilanci A.
dc.contributor.authorÇelik S.
dc.contributor.authorEkren O.
dc.date.accessioned2021-05-03T20:52:14Z
dc.date.available2021-05-03T20:52:14Z
dc.date.issued2020
dc.description.abstractIn this study, a numerical model of a reciprocating magnetocaloric regenerator using a Halbach magnet array is developed in ANSYS-FLUENT software. The model consists of three components, namely, (i) the Halbach magnet array, (ii) the magnetocaloric material (MCM), and (iii) the heat transfer fluid. A two-dimensional (2D) domain is studied due to the axisymmetric geometry of the physical model. A pressure difference is defined between the inlet and outlet sections of the fluid domain to maintain a reciprocating fluid flow. In the proposed computational scheme, a segregated approach is followed to consider the spatial distribution of the magnetic field in the thermal analyses. Therefore, a 2D magnetic field within the MCM is computed using an analytical approach at first, and its results are integrated into ANSYS-FLUENT with a user-defined function (UDF). Hydrodynamic and heat transfer characteristics of the proposed regenerator model are evaluated under various Reynolds numbers and cycle durations. Moreover, the temperature drop at the cold side of the regenerator is represented in terms of the pressure difference, flow duration, and the diameter of Gadolinium (Gd) as the MCM. For the current geometrical configurations, it is observed that the magnetic field varies from 0.4 T to 1 T within Gd. The highest temperature spans are measured as 8.4 K, 7.5 K, and 7.2 K numerically for the cycle durations of 1.2 s, 2.2 s, and 4.2 s, respectively. Copyright © 2020 by ASME.en_US
dc.identifier.doi10.1115/1.4047368
dc.identifier.issn0022-1481
dc.identifier.issn0022-1481en_US
dc.identifier.issue9en_US
dc.identifier.scopus2-s2.0-85096800615en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1115/1.4047368
dc.identifier.urihttps://hdl.handle.net/11454/71099
dc.identifier.volume142en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAmerican Society of Mechanical Engineers (ASME)en_US
dc.relation.ispartofJournal of Heat Transferen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectComputational fluid dynamicsen_US
dc.subjectMagnetic refrigerationen_US
dc.subjectMagnetic regeneratoren_US
dc.subjectMagnetocaloric effecten_US
dc.subjectWeiss mean field theoryen_US
dc.titleNumerical analysis of magnetic field and heat transfer of a reciprocating magnetocaloric regenerator using a halbach magnet arrayen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

Scopus İndeksli Yayınlar Koleksiyonu