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

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  • Farmahini-Farahani, Moien
  • Delfani, Shahram
  • Esmaeelian, Jafar

Abstract

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%.

Suggested Citation

  • Farmahini-Farahani, Moien & Delfani, Shahram & Esmaeelian, Jafar, 2012. "Exergy analysis of evaporative cooling to select the optimum system in diverse climates," Energy, Elsevier, vol. 40(1), pages 250-257.
    • Handle: RePEc:eee:energy:v:40:y:2012:i:1:p:250-257
    DOI: 10.1016/j.energy.2012.01.075
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    References listed on IDEAS

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    3. Shazia Noor & Hadeed Ashraf & Muhammad Sultan & Zahid Mahmood Khan, 2020. "Evaporative Cooling Options for Building Air-Conditioning: A Comprehensive Study for Climatic Conditions of Multan (Pakistan)," Energies, MDPI, vol. 13(12), pages 1-23, June.
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    11. Li, Chao & Mao, Ruiyong & Wang, Yong & Zhang, Jun & Lan, Jiang & Zhang, Zujing, 2024. "Experimental study on direct evaporative cooling for free cooling of data centers," Energy, Elsevier, vol. 288(C).
    12. Mostafaeipour, Ali & Bardel, Behnoosh & Mohammadi, Kasra & Sedaghat, Ahmad & Dinpashoh, Yagob, 2014. "Economic evaluation for cooling and ventilation of medicine storage warehouses utilizing wind catchers," Renewable and Sustainable Energy Reviews, Elsevier, vol. 38(C), pages 12-19.
    13. Duan, Zhiyin & Zhan, Changhong & Zhang, Xingxing & Mustafa, Mahmud & Zhao, Xudong & Alimohammadisagvand, Behrang & Hasan, Ala, 2012. "Indirect evaporative cooling: Past, present and future potentials," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(9), pages 6823-6850.
    14. Muhammad Aleem & Ghulam Hussain & Muhammad Sultan & Takahiko Miyazaki & Muhammad H. Mahmood & Muhammad I. Sabir & Abdul Nasir & Faizan Shabir & Zahid M. Khan, 2020. "Experimental Investigation of Desiccant Dehumidification Cooling System for Climatic Conditions of Multan (Pakistan)," Energies, MDPI, vol. 13(21), pages 1-23, October.
    15. Cui, Yuanlong & Zhu, Jie & Zoras, Stamatis & Liu, Lin, 2021. "Review of the recent advances in dew point evaporative cooling technology: 3E (energy, economic and environmental) assessments," Renewable and Sustainable Energy Reviews, Elsevier, vol. 148(C).
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    18. Szabó, Gábor L. & Kalmár, Ferenc, 2019. "Investigation of energy and exergy performances of radiant cooling systems in buildings – A design approach," Energy, Elsevier, vol. 185(C), pages 449-462.

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