Title :
Magnetic refrigerator with rotating porous heat exchanger
Author :
Egolf, Peter W. ; Kitanovski, Andrej ; Sari, Osmann
Author_Institution :
Div. of Numerical Simulations, Univ. of Appl. Sci. of Western Switzerland, Yverdon les Bains, Switzerland
Abstract :
A magnetic refrigerator with a cylindrical heat exchanger of wavy structure has been designed and numerical system performance calculations have been performed. This refrigerating machine, respectively heat pump device can be operated with air or water as working fluid. In the article the design of the new refrigerator is outlined and the coupled basic equations of magnetism and thermodynamics are presented, which contain two characteristic geometrical quantities, which determine the heat exchanger structure. Magnetic fields, magnetization distributions, and coefficients of performances, etc. are presented for magnetic field strength between 1 and 5 Tesla.
Keywords :
heat exchangers; heat pumps; magnetic cooling; magnetisation; refrigerants; refrigeration; 1 to 5 tesla; air; characteristic geometrical quantities; cylindrical heat exchanger; heat exchanger structure; magnetic field strength; magnetic refrigerator; magnetization distributions; numerical system performance calculations; performance coefficients; refrigerating machine; rotating porous heat exchanger; water; wavy structure; working fluid; Couplings; Heat pumps; Magnetic fields; Magnetic materials; Numerical simulation; Refrigerants; Refrigeration; Temperature; Water heating; Wheels;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1463834
