Design and performance of a room-temperature hybrid magnetic refrigerator combined with Stirling gas refrigeration effect

被引：25
|
作者：
He, X. N. [1 ,2 ]
Gong, M. Q. [1 ]
Zhang, H. [1 ,2 ]
Dai, W. [1 ]
Shen, J. [1 ]
Wu, J. F. [1 ]
机构：
[1] Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Cryogen, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100039, Peoples R China
来源：
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2013年 / 36卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Hybrid refrigerator; Magnetic refrigeration; Stirling gas refrigeration; Phase angle; Cooling performance;
D O I：
10.1016/j.ijrefrig.2013.03.014
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The experimental prototype described in this work is a hybrid refrigerator that combines the active magnetic refrigeration effect with the Stirling gas regenerative refrigeration effect. In this prototype, gadolinium sheets are packed in the regenerator matrix for both Stirling and active magnetic regenerative refrigeration. Experimental tests were carried out to measure the cooling performance of this hybrid prototype. The influence of the phase angle on the cooling performance was investigated, and a reasonable phase angle of 90 degrees was determined to obtain optimal cooling performance. By combining the two refrigeration effects, a minimum cooling temperature without heat load of 3.5 degrees C was reached, which is lower than that of 6.5 degrees C for the pure Stirling refrigeration effect without the magnetic cooling effect. The results of this study show that the cooling performance is improved by 24% for the hybrid effects compared with that exploiting only the Stirling gas refrigeration effect. (C) 2013 Elsevier Ltd and IIR. All rights reserved.
引用
收藏
页码：1465 / 1471
页数：7
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