Journal article · Conference paper
Design concepts for a continuously rotating active magnetic regenerator
Thermo Ceramics, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark1
Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
Fuel Cells and Solid State Chemistry Division. Management, Fuel Cells and Solid State Chemistry Division, Risø National Laboratory for Sustainable Energy, Technical University of Denmark4
Design considerations for a prototype magnetic refrigeration device with a continuously rotating AMR are presented. Building the active magnetic regenerator (AMR) from stacks of elongated plates of the perovskite oxide material La0.67Ca0.33−xSrxMn1.05O3, gives both a low pressure drop and allows grading of the Curie temperature along the plates.
This may be accomplished by a novel technique where a compositionally-graded material is tape cast in one piece. The magnet assembly is based on a novel design strategy, to create alternating high- and low magnetic field regions within a magnet assembly. Focus is on maximising the magnetic field in the high field regions but also, importantly, minimising the flux in the low field regions.
The design is iteratively optimised through 3D finite element magnetostatic modelling.
Language: | English |
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Year: | 2011 |
Pages: | 1792-1796 |
Proceedings: | 23rd IIR International Congress of Refrigeration |
ISSN: | 18792081 and 01407007 |
Types: | Journal article and Conference paper |
DOI: | 10.1016/j.ijrefrig.2011.07.013 |
ORCIDs: | Bahl, Christian Robert Haffenden , Engelbrecht, Kurt , Bjørk, Rasmus , Eriksen, Dan , Smith, Anders , Nielsen, Kaspar Kirstein and Pryds, Nini |
Aimant Conception Modèle Optimisation Réfrigérateur magnétique