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Journal article

Measuring the effect of demagnetization in stacks of gadolinium plates using the magnetocaloric effect

From

Department of Electrical Engineering, Technical University of Denmark1

Biomedical Engineering, Department of Electrical Engineering, Technical University of Denmark2

Thermo Ceramics, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark3

Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark4

Risø National Laboratory for Sustainable Energy, Technical University of Denmark5

Microstructures and Interfaces, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark6

Fuel Cells and Solid State Chemistry Division. Management, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark7

The effect of demagnetization in a stack of gadolinium plates is determined experimentally by using spatially resolved measurements of the adiabatic temperature change due to the magnetocaloric effect. The number of plates in the stack, the spacing between them and the position of the plate on which the temperature is measured are varied.

The orientation of the magnetic field is also varied. The measurements are compared to a magnetostatic model previously described. The results show that the magnetocaloric effect, due to the change in the internal field, is sensitive to the stack configuration and the orientation of the applied field.

This may have significant implications for the construction of a magnetic cooling device

Language: English
Year: 2011
Pages: 3027-3032
ISSN: 18734766 and 03048853
Types: Journal article
DOI: 10.1016/j.jmmm.2011.06.052
ORCIDs: Lipsø, Hans Kasper Wigh , Nielsen, Kaspar Kirstein , Christensen, Dennis , Bahl, Christian Robert Haffenden , Engelbrecht, Kurt , Kuhn, Luise Theil and Smith, Anders

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