TY - JOUR
T1 - An optimized magnet for magnetic refrigeration
AU - Bjørk, Rasmus
AU - Bahl, Christian Robert Haffenden
AU - Smith, Anders
AU - Christensen, Dennis
AU - Pryds, Nini
PY - 2010
Y1 - 2010
N2 - 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.
AB - 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.
KW - Magnetic refrigeration
KW - Fuel Cells and hydrogen
KW - Magnetisk køling
KW - Brændselsceller og brint
U2 - 10.1016/j.jmmm.2010.06.017
DO - 10.1016/j.jmmm.2010.06.017
M3 - Journal article
SN - 0304-8853
VL - 322
SP - 3324
EP - 3328
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
IS - 21
ER -