The effects of fouling on the irreversibility of heat exchangers

被引：0
|
作者：
Yang, SR [1 ]
Wang, JG [1 ]
Xu, ZM [1 ]
Chen, F [1 ]
机构：
[1] NE China Inst Elect Power Engn, Thermal Power Engn Dept, Jilin City 132012, Peoples R China
来源：
UNDERSTANDING HEAT EXCHANGER FOULING AND ITS MITIGATION | 1999年
关键词：
heat exchanger; fouling; entropy generation; irreversibility; pressure drop;
D O I：
暂无
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
This paper presents counterflow and parallel-flow heat exchangers with gas and liquid as working fluids for examples, to show the effect of fouling on the irreversibility of heat exchangers. The entropy generation number expressions for geometry and operating parameters of counterflow and parallel-flow heat exchangers have been deduced. The results indicate that the entropy generation of a heat exchanger increases with fouling resistance. It is found that the heat exchangers with gas-to-gas and Liquid-to-liquid have different effects of fouling on the entropy generation caused by fluid friction.
引用
收藏
页码：131 / 136
页数：6
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