A new method of zooming in the cool power of the room temperature magnetic refrigeration

摘要

The cycle speed of a room temperature magnetic refrigerator determines the cooling power. All the materials of giant magnetocaloric effect have much lower heat conductivity compared with copper, so the refrigerator with such a material has a less cooling power. A new method of using the high heat conductivity materials to improve the heat conductivity of the magnetic refrigerants is proposed in the present paper. The new method to be used in magnetic metal Gd with Ag may zoom in about 10 times of the cooling power.