Application of exergy method to a two-stage irreversible combined refrigeration system

被引：2

作者：

Su, Y-F

Chen, C-K ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Mech Engn, Tainan 70101, Taiwan

[2] Far E Univ, Dept Automat & Control Engn, Tainan, Taiwan

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE | 2007年 / 221卷 / 07期

关键词：

exergy; optimization; irreversible; combined; refrigeration;

D O I：

10.1243/0954406JMES459

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The exergy method, based on the maximum exergetic efficiency criterion, is applied to a two-stage irreversible combined refrigeration system. The exergetic efficiency defined as the ratio of rate of exergy output to rate of exergy input is taken as the objective index to be maximized. The related cycle temperature parameters are first solved. The maximum exergetic efficiency is then obtained analytically. Comparisons between the exergetic efficiency and the coefficient of performance of the combined refrigeration system are performed. The influences of various parameters on the system performances are discussed. It shows that the exergy method is practical and effective when operating or designing the combined refrigeration system.

引用

页码：807 / 813

页数：7

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