Article ID: 17-05_OA
Room-temperature magnetic refrigeration is attracting attention as a next-generation CFC-free refrigeration technology. However, the magnetic refrigeration is not put into practical use because of a low cooling capacity. The aim of this work is to increase the cooling capacity of the magnetic refrigerator by focusing on an improvement of the refrigeration cycle based on the Active Magnetic Regenerator (AMR). By using the hill-climbing method, we searched for the optimum refrigeration cycle depending on the temperature span and the AMR aspect ratio. The cooling capacity is calculated by the one-dimensional model of the AMR. The results of this study show that there are better cycles in obtaining high cooling capacity than conventional ones such as Brayton cycle. These cycles are constructed by the combination of Brayton and Ericsson cycles.
