Journal article · Preprint article
Improving Magnet Designs With High and Low Field Regions
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 general scheme for increasing the difference in magnetic flux density between a high and a low magnetic field region by removing unnecessary magnet material is presented. This is important in, e.g., magnetic refrigeration where magnet arrays have to deliver high field regions in close proximity to low field regions.
Also, a general way to replace magnet material with a high permeability soft magnetic material where appropriate is discussed. As an example, these schemes are applied to a two dimensional concentric Halbach cylinder design resulting in a reduction of the amount of magnet material used by 42% while increasing the difference in flux density between a high and a low field region by 45%.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2011 |
| Pages: | 1687-1692 |
| ISSN: | 19410069 and 00189464 |
| Types: | Journal article and Preprint article |
| DOI: | 10.1109/TMAG.2011.2114360 |
| ORCIDs: | Bjørk, Rasmus , Bahl, Christian Robert Haffenden , Smith, Anders and Pryds, Nini |
Magnetic confinement Magnetic fields Magnetic flux Magnetic noise Magnetic shielding Magnetostatics Soft magnetic materials high field regions high permeability soft magnetic material magnet arrays magnet designs magnetic field region magnetic fields magnetic flux magnetic flux density magnetic refrigeration magnetic shielding permanent magnets permanent-magnet machines physics.class-ph physics.ins-det soft magnetic materials two dimensional concentric Halbach cylinder design unnecessary magnet material
