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Making a Cool Choice: The Materials Library of Magnetic Refrigeration

Gottschall, Tino and Skokov, Konstantin P. and Fries, Maximilian and Taubel, Andreas and Radulov, Iliya and Scheibel, Franziska and Benke, Dimitri and Riegg, Stefan and Gutfleisch, Oliver (2019):
Making a Cool Choice: The Materials Library of Magnetic Refrigeration.
In: Advanced Energy Materials, Wiley, p. 1901322, ISSN 1614-6832,
DOI: 10.1002/aenm.201901322,
[Online-Edition: https://doi.org/10.1002/aenm.201901322],
[Article]

Abstract

The phase‐down scenario of conventional refrigerants used in gas–vapor compressors and the demand for environmentally friendly and efficient cooling make the search for alternative technologies more important than ever. Magnetic refrigeration utilizing the magnetocaloric effect of magnetic materials could be that alternative. However, there are still several challenges to be overcome before having devices that are competitive with those based on the conventional gas–vapor technology. In this paper a rigorous assessment of the most relevant examples of 14 different magnetocaloric material families is presented and those are compared in terms of their adiabatic temperature and isothermal entropy change under cycling in magnetic‐field changes of 1 and 2 T, criticality aspects, and the amount of heat that they can transfer per cycle. The work is based on magnetic, direct thermometric, and calorimetric measurements made under similar conditions and in the same devices. Such a wide‐ranging study has not been carried out before. This data sets the basis for more advanced modeling and machine learning approaches in the near future.

Item Type: Article
Erschienen: 2019
Creators: Gottschall, Tino and Skokov, Konstantin P. and Fries, Maximilian and Taubel, Andreas and Radulov, Iliya and Scheibel, Franziska and Benke, Dimitri and Riegg, Stefan and Gutfleisch, Oliver
Title: Making a Cool Choice: The Materials Library of Magnetic Refrigeration
Language: English
Abstract:

The phase‐down scenario of conventional refrigerants used in gas–vapor compressors and the demand for environmentally friendly and efficient cooling make the search for alternative technologies more important than ever. Magnetic refrigeration utilizing the magnetocaloric effect of magnetic materials could be that alternative. However, there are still several challenges to be overcome before having devices that are competitive with those based on the conventional gas–vapor technology. In this paper a rigorous assessment of the most relevant examples of 14 different magnetocaloric material families is presented and those are compared in terms of their adiabatic temperature and isothermal entropy change under cycling in magnetic‐field changes of 1 and 2 T, criticality aspects, and the amount of heat that they can transfer per cycle. The work is based on magnetic, direct thermometric, and calorimetric measurements made under similar conditions and in the same devices. Such a wide‐ranging study has not been carried out before. This data sets the basis for more advanced modeling and machine learning approaches in the near future.

Journal or Publication Title: Advanced Energy Materials
Publisher: Wiley
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Functional Materials
Date Deposited: 06 Aug 2019 06:28
DOI: 10.1002/aenm.201901322
Official URL: https://doi.org/10.1002/aenm.201901322
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