Performance analysis of a room temperature rotary magnetic refrigerator for two different gadolinium compounds

被引：22
|
作者：
Tagliafico, L. A.
Scarpa, F.
Canepa, F.
Cirafici, S.
机构：
[1] Sez Termoenerget & Condizionamento Ambientale, Dipartimento Ingn Prod, I-16145 Genoa, Italy
[2] Dipartimento Chim & Chim Ind, I-16145 Genoa, Italy
来源：
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 2006年 / 29卷 / 08期
关键词：
magnetic refrigerator; modelling; heat transfer; COP; parameter; alloy; gadolinium;
D O I：
10.1016/j.ijrefrig.2006.07.017
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A thermodynamic performance analysis is developed for a Steyert-like rotary magnetic refrigeration (RMR) system operating in the near-room temperature range with two possible, alternative, gadolinium compounds. The first magnetocaloric material (MCM) is an alloy (Gd7Pd3) with a well defined Curie temperature (around 318 K), while the second MCM (Gd76Pd24) is an eutectic compound with a smoothed double Curie transition (at 298 and 318 K, respectively). The main issues linked to the thermodynamic properties of the magnetic material are outlined and the influence of the magnetocaloric properties on the global performance (useful effect, coefficient of performance, and so on) of the refrigeration system is discussed. (c) 2006 Elsevier Ltd and IIR. All rights reserved.
引用
收藏
页码：1307 / 1317
页数：11
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