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Evaluating magnetocaloric effect in magnetocaloric materials : a novel approach based on indirect measurements using artificial neural networks
ID Maiorino, Angelo (Author), ID Del Duca, Manuel Gesù (Author), ID Tušek, Jaka (Author), ID Tomc, Urban (Author), ID Kitanovski, Andrej (Author), ID Aprea, Ciro (Author)

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Abstract
The thermodynamic characterisation of magnetocaloric materials is an essential task when evaluating the performance of a cooling process based on the magnetocaloric effect and its application in a magnetic refrigeration cycle. Several methods for the characterisation of magnetocaloric materials and their thermodynamic properties are available in the literature. These can be generally divided into theoretical and experimental methods. The experimental methods can be further divided into direct and indirect methods. In this paper, a new procedure based on an artificial neural network to predict the thermodynamic properties of magnetocaloric materials is reported. The results show that the procedure provides highly accurate predictions of both the isothermal entropy and the adiabatic temperature change for two different groups of magnetocaloric materials that were used to validate the procedure. In comparison with the commonly used techniques, such as the mean field theory or the interpolation of experimental data, this procedure provides highly accurate, time-effective predictions with the input of a small amount of experimental data. Furthermore, this procedure opens up the possibility to speed up the characterisation of new magnetocaloric materials by reducing the time required for experiments.

Language:English
Keywords:magnetic refrigeration, magnetocaloric effect, gadolinium, artificial neural network, modelling, LaFe$_{13−x−y}$Co$_x$Si$_y$
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Publication status:Published
Publication version:Version of Record
Year:2019
Number of pages:22 str.
Numbering:Vol. 12, iss. 10, art. 1871
PID:20.500.12556/RUL-126685 This link opens in a new window
UDC:536:697(045)
ISSN on article:1996-1073
DOI:10.3390/en12101871 This link opens in a new window
COBISS.SI-ID:16618011 This link opens in a new window
Publication date in RUL:04.05.2021
Views:1230
Downloads:175
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Record is a part of a journal

Title:Energies
Shortened title:Energies
Publisher:Molecular Diversity Preservation International
ISSN:1996-1073
COBISS.SI-ID:518046745 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:16.05.2019

Secondary language

Language:Slovenian
Keywords:magnetno hlajenje, magnetokalorični učinek, gadolinij, nevronske mreže

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