Exergy analysis of evaporative cooling to select the optimum system in diverse climates

被引：63

作者：

Farmahini-Farahani, Moien ^{[1
]}

Delfani, Shahram ^{[1
]}

Esmaeelian, Jafar ^{[1
]}

机构：

[1] BHRC, Dept Installat, Tehran, Iran

来源：

ENERGY | 2012年 / 40卷 / 01期

关键词：

Exergy analysis; Evaporative cooling; Exergy efficiency; Irreversibility; Diverse climates; PERFORMANCE;

D O I：

10.1016/j.energy.2012.01.075

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this paper, an exergy analysis is applied to indicate the exergy efficiency and irreversibility of common models of evaporative cooling. Exergy analysis of conditioned air are based on the results of experimental investigations on the direct, indirect, and two-stage indirect/direct evaporative cooling for six cities in Iran, each having various weather conditions. For this purpose, exergy balances of three cooling methods are derived. The results obtained reveal that for a comprehensive efficiency analysis, both the first and second law of thermodynamics should be considered. Furthermore, the direct evaporative coolers work best in temperate and dry climate with estimated exergy efficiency of 20%. The indirect evaporative coolers are more efficient in hot and dry climate with approximate exergy efficiency of 55%. The indirect/direct evaporative coolers are better choice for hot and semi-humid climate with exergy efficiency of about 62%. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：250 / 257

页数：8

共 25 条

[1] Evaluation of the performance of local fibers in evaporative cooling [J].