Magnetic Room Temperature Cooling Using Stacks of ...

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GRØN DYST 2010 Technical University of Denmark

Magnetic Room Temperature Cooling Using Stacks of Gadolinium Plates
Paper
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Author:Kasper Wigh Lipsø (Department of Physics, Technical University of Denmark, Denmark)
Supervisor:Luise Theil Kuhn (National Laboratory for Sustainable Energy, Technical University of Denmark, Denmark)
Christian Bahl (National Laboratory for Sustainable Energy, Technical University of Denmark, Denmark)
Kaspar Kirstein Nielsen, (National Laboratory for Sustainable Energy, Technical University of Denmark, Denmark)
Date: 2010-06-25     Track: Main     Session: 1
DOI:10.4122/1.1000000092
DOI:10.4122/1.1000000093
DOI:10.4122/1.1000000094

Magnetic refrigeration is an alternative to conventional refrigeration. Where conventional refrigeration uses vapor compression cycles, magnetic refrigeration is based on the magnetocaloric effect, i.e. the property of magnetic materials to change temperature when exposed to a changing magnetic field. The technology is currently used for low temperature cooling (<10K). By implementing stacks of magnetic plates instead of powder, it can be optimized to yield a more energy efficient room temperature cooling than conventional refrigeration. This project investigates the configuration of the stacks in order to get the largest temperature change with as little material and energy costs as possible.