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Magnetic Refrigeration with Recycled Permanent Magnets and Free Rare-Earth Magnetocaloric La–Fe–Si

Benke, Dimitri ; Fries, Maximilian ; Specht, Marius ; Wortmann, Jonas ; Pabst, Marc ; Gottschall, Tino ; Radulov, Iliya ; Skokov, Konstantin ; Bevan, Alex Ivor ; Prosperi, Davide ; Tudor, Catalina ; Afiuny, Peter ; Zakotnik, Miha ; Gutfleisch, Oliver (2020)
Magnetic Refrigeration with Recycled Permanent Magnets and Free Rare-Earth Magnetocaloric La–Fe–Si.
In: Energy Technology, 2020, 8
doi: 10.25534/tuprints-00013437
Artikel, Erstveröffentlichung

Kurzbeschreibung (Abstract)

Magnetic refrigeration is an upcoming technology that could be an alternative to the more than 100-year-old conventional gas–vapor compression cooling. Magnetic refrigeration might answer some of the global challenges linked with the increasing demands for readily available cooling in almost every region of the world and the global-warming potential of conventional refrigerants. Important issues to be solved are, for example, the required mass and the ecological footprint of the rare-earth permanent magnets and the magnetocaloric material, which are key parts of the magnetic cooling device. The majority of existing demonstrators use Nd–Fe–B permanent magnets, which account for more than 50% of the ecological footprint, and Gd, which is a critical raw material. This work shows a solution to these problems by demonstrating the world’s first magnetocaloric demonstrator that uses recycled Nd–Fe–B magnets as the magnetic field source, and, as a Gd replacement material, La–Fe–Mn–Si for the magnetocaloric heat exchanger. These solutions show that it is possible to reduce the ecological footprint of magnetic cooling devices and provides magnetic cooling as a green solid-state technology that has the potential to satisfy the rapidly growing global demands.

Typ des Eintrags: Artikel
Erschienen: 2020
Autor(en): Benke, Dimitri ; Fries, Maximilian ; Specht, Marius ; Wortmann, Jonas ; Pabst, Marc ; Gottschall, Tino ; Radulov, Iliya ; Skokov, Konstantin ; Bevan, Alex Ivor ; Prosperi, Davide ; Tudor, Catalina ; Afiuny, Peter ; Zakotnik, Miha ; Gutfleisch, Oliver
Art des Eintrags: Erstveröffentlichung
Titel: Magnetic Refrigeration with Recycled Permanent Magnets and Free Rare-Earth Magnetocaloric La–Fe–Si
Sprache: Englisch
Publikationsjahr: 2020
Publikationsdatum der Erstveröffentlichung: 2020
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Energy Technology
Jahrgang/Volume einer Zeitschrift: 8
DOI: 10.25534/tuprints-00013437
URL / URN: https://tuprints.ulb.tu-darmstadt.de/13437
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Kurzbeschreibung (Abstract):

Magnetic refrigeration is an upcoming technology that could be an alternative to the more than 100-year-old conventional gas–vapor compression cooling. Magnetic refrigeration might answer some of the global challenges linked with the increasing demands for readily available cooling in almost every region of the world and the global-warming potential of conventional refrigerants. Important issues to be solved are, for example, the required mass and the ecological footprint of the rare-earth permanent magnets and the magnetocaloric material, which are key parts of the magnetic cooling device. The majority of existing demonstrators use Nd–Fe–B permanent magnets, which account for more than 50% of the ecological footprint, and Gd, which is a critical raw material. This work shows a solution to these problems by demonstrating the world’s first magnetocaloric demonstrator that uses recycled Nd–Fe–B magnets as the magnetic field source, and, as a Gd replacement material, La–Fe–Mn–Si for the magnetocaloric heat exchanger. These solutions show that it is possible to reduce the ecological footprint of magnetic cooling devices and provides magnetic cooling as a green solid-state technology that has the potential to satisfy the rapidly growing global demands.

URN: urn:nbn:de:tuda-tuprints-134372
Sachgruppe der Dewey Dezimalklassifikatin (DDC): 500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften
500 Naturwissenschaften und Mathematik > 530 Physik
600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau
Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Funktionale Materialien
Hinterlegungsdatum: 13 Okt 2020 11:56
Letzte Änderung: 14 Jan 2024 09:08
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