Heat switch limitations on multi-stage magnetic refrigeration

被引：0
|
作者：
Kittel, P [1 ]
机构：
[1] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA
来源：
ADVANCES IN CRYOGENIC ENGINEERING, VOL 47, PTS A AND B | 2002年 / 613卷
关键词：
D O I：
暂无
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Heat switches have long been successfully used in single stage Magnetic Refrigerators. The recent rekindled interest in multi-stage magnetic coolers and the use of magnetically controlled isothermal stages place stricter requirements on the performance of heat switches. This paper reviews the application of heat switches to single stage magnetic coolers. It then shows how the heat switch requirements are different for isothermal stages and cascaded multi-stage coolers. In the two latter cases, heat switches do not perform as wen as they do for single stage coolers. This significantly affects the design of multi-stage systems.
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页码：1167 / 1174
页数：8
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