【摘要】 对磁制冷中的关键部件主动式磁蓄冷器 (AMR)的漏热进行了数值计算 ,得到了漏热的组成关系 ,发现沿径向的热传导影响最大。如果能够有效减少AMR与磁体的接触面积或者做好径向外侧的绝热 ,则该系统的漏热问题将显著减少。更多还原

【Abstract】 The heat conductivity of the key unit AMR(active magnetic regenerator)in a room temperature magnetic refrigerator is calculated. The relation of all the heat leak factors is determined The result shows that the heat leak along the radial direction is much more than that along the axial direction. If the face contact between AMR and magnet is reduced and the radial direction is well insulated, the heat leak in the system will be improved greatly更多还原