抄録
A room temperature magnetic refrigerator deserves our attention as a refrigerator without having to use environmentally hazardous fluids. The refrigerator had produced a maximum COP of 2.6 when the temperature at the hot end of the AMR duct was 24 ℃ and the temperature span was 5 ℃. In order to increase the temperature span, the AMR duct has been modified to a cascade structure. The performance of the refrigerator using the hybrid magnetic materials is reported in this paper.
