Preprint article · Journal article
An optimized magnet for magnetic refrigeration
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
A magnet designed for use in a magnetic refrigeration device is presented. The magnet is designed by applying two general schemes for improving a magnet design to a concentric Halbach cylinder magnet design and dimensioning and segmenting this design in an optimum way followed by the construction of the actual magnet.
The final design generates a peak value of 1.24 T, an average flux density of 0.9 T in a volume of 2 L using only 7.3 L of magnet, and has an average low flux density of 0.08 T also in a 2 L volume. The working point of all the permanent magnet blocks in the design is very close to the maximum energy density.
The final design is characterized in terms of a performance parameter, and it is shown that it is one of the best performing magnet designs published for magnetic refrigeration.
| Language: | English |
|---|---|
| Year: | 2010 |
| Pages: | 3324-3328 |
| ISSN: | 18734766 and 03048853 |
| Types: | Preprint article and Journal article |
| DOI: | 10.1016/j.jmmm.2010.06.017 |
| ORCIDs: | Bjørk, Rasmus , Bahl, Christian Robert Haffenden , Smith, Anders , Christensen, Dennis and Pryds, Nini |
