Duality of heat exchanger performance in balanced counter-flow systems

被引：31
|
作者：
Ogiso, K [1 ]
机构：
[1] Tokyo Univ Technol, Hachioji, Tokyo 1920982, Japan
来源：
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 2003年 / 125卷 / 03期
关键词：
analytical; heat transfer; heat exchangers; second law; thermodynamics;
D O I：
10.1115/1.1571079
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The duality of heat exchangers to act as both heat conductors and insulators when considering heat exchanger performance is studied from the viewpoint of entropy generation. By defining an appropriate index of the entropy generation rate, it is clarified that the performance paradox pointed out by Bejan can be resolved. The case of a balanced counter-flow system was examined and it has been shown that a heat exchanger can be regarded as both a heat conductor and a heat insulator in terms of entropy generation.
引用
收藏
页码：530 / 532
页数：3
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