Journal article
Measuring the effect of demagnetization in stacks of gadolinium plates using the magnetocaloric effect
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 |
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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 |