Experimental Investigation on the Cooling Performance of a Counterflow Dew Point Evaporative Cooler

Öz

In this study, an innovative indirect evaporative cooler is presented and experimentally analysed. A prototype was assembled for the experimental investigation of the system and tested in the laboratory environment under the conditions of constant air flow rate of 350 m3/h, circulating water temperatures of 15°C and 20°C, inlet air temperatures of 25°C and 30°C and lastly inlet air humidity of 9g/kg and 13g/kg, respectively. Based on the data obtained during the experiments, calculations were performed for the cooling capacity, cooling efficiency, energy efficiency and exergy efficiency of the system for each case. The findings showed that the highest wet bulb efficiency, dew point efficiency and EER of evaporative cooler were found to be 0.91, 0.62, and 0.77, respectively.

Anahtar Kelimeler

• Evaporative cooler
• M-cycle
• experimental study
• dew point cooling

Destekleyen Kurum

Necmettin Erbakan Üniversitesi

Proje Numarası

201216001

Teşekkür

The authors gratefully acknowledge the financial support of Scientific Research Council (BAP) of the Necmettin Erbakan University (Project no: 201216001).

Kaynakça

1. [1] Duan, Z., Zhan, C., Zhang, X., Mustafa, M., Zhao, X., Alimohammadisagvand, B., & Hasan, A. (2012). Indirect evaporative cooling: Past, present and future potentials. Renewable and Sustainable Energy Reviews, 16(9), 6823-6850.
2. [2] Buker, Mahmut Sami; Riffat, Saffa B. Recent developments in solar assisted liquid desiccant evaporative cooling technology—A review. Energy and Buildings, 2015, 96: 95-108.
3. [3] Yang, Y., Cui, G., & Lan, C. Q. (2019). Developments in evaporative cooling and enhanced evaporative cooling-A review. Renewable and Sustainable Energy Reviews, 113, 109230.
4. [4] Yang, H., Shi, W., Chen, Y., & Min, Y. (2021). Research development of indirect evaporative cooling technology: An updated review. Renewable and Sustainable Energy Reviews, 145, 111082.
5. [5] Buker, Mahmut Sami; Mempouo, Blaise; Riffat, Saffa B. Experimental investigation of a building integrated photovoltaic/thermal roof collector combined with a liquid desiccant enhanced indirect evaporative cooling system. Energy Conversion and Management, 2015, 101: 239-254.
6. [6] Bom, G. J., Foster, R., Dijkstra, E., Tummers, M., Evaporative air-conditioning: applications for environmentally friendly cooling, The World Bank, 1999
7. [7] Osma E., Evaporatif Soğutma Sistemlerinin Mekanik Buhar Sıkıştırmalı Soğutma Sistemleri İle Termodinamik Ve Ekonomik Bakımdan Karşılaştırılması, Yüksek Lisans Tezi, Namık Kemal Üniversitesi Fen Bilimleri Enstitüsü, Tekirdağ, 2011.
8. [8] El-Refaie, M. F., Kaseb, S., Speculation in the feasibility of evaporative cooling, Building and Environment, 2009, 44(4): 826-838.

9. [9] Xuan, Y. M., Xiao, F., Niu, X. F., Huang, X., Wang, S. W, Research and application of evaporative cooling in China: A review (I)–Research, Renewable and Sustainable Energy Reviews, 2012, 16(5): 3535-3546.
10. [10] Maisotsenko, V., Gillan, L. E., Heaton, T. L., Gillan, A. D, 2003, Washington, DC: U.S. Patent and Trademark Office U.S., Patent No. 6,581,402.
11. [11]. Dizaji, H. S., Hu, E. J., Chen, L., Pourhedayat, S, Development and validation of an analytical model for perforated (multi-stage) regenerative M-cycle air cooler, Applied Energy, 2018, 228: 2176-2194.
12. [12] Pandelidis, Demis; Pacak, Anna; Anisimov, Sergey. Energy Saving Potential by Using Maisotsenko-Cycle in Different Applications. International Journal of Earth & Environmental Sciences, 2018, 2018.
13. [13] Pandelidis, D., Anisimov, S., Drąg, P., Sidorczyk, M., & Pacak, A., Analysis of application of the M-Cycle heat and mass exchanger to the typical air conditioning systems in Poland. Energy and Buildings, 2018, 158: 873-883.
14. [14] Pandelidis, D., Anisimov, S., Worek, W. M., & Drąg, P., Numerical analysis of a desiccant system with cross-flow Maisotsenko cycle heat and mass exchanger. Energy and Buildings, 2016, 123: 136-150.
15. [15] X. Zhao, J. M. Li, and S. B. Riffat, “Numerical study of a novel counter-flow heat and mass exchanger for dew point evaporative cooling,” Applied Thermal Engineering, vol. 28, pp. 1942-1951, 2008.
16. [16] C. Zhan et al., “Comparative study of the performance of the M-cycle counter-flow and cross-flow heat exchangers for indirect evaporative cooling – Paving the path toward sustainable cooling of buildings,” Energy, vol. 36, pp. 6790-6805, 2011.
17. [17] X. Zhao, S. Yang, Z. Duan, and S. B. Riffat, “Feasibility study of a novel dew point air conditioning system for China building application,” Building and Environment, vol. 44, pp. 1990-1999, 2009.
18. [18] X. Zhao, Z. Duan, C. Zhan, and S. B. Riffat, “Dynamic performance of a novel dew point air conditioning for the UK buildings,” International Journal of Low-Carbon Technologies, vol. 4, pp. 27-35, 2009.
19. [19] Zhan, C., Zhao, X., Smith, S., Riffat, S. B., Numerical study of a M-cycle cross-flow heat exchanger for indirect evaporative cooling, Building and Environment, 2011, 46(3): 657-668.
20. [20] E. D. Rogdakis, I. P. Koronaki, and D. N. Tertipis, “Experimental and computational evaluation of a Maisotsenko evaporative cooler at Greek climate,” Energy and Buildings, vol. 70, pp. 497-506, 2014.
21. [21] Riangvilaikul, B., Kumar, S., Numerical study of a novel dew point evaporative cooling system, Energy and Buildings, 2010, 42(11): 2241-2250.
22. [22] Wang, L., Zhan, C., Zhang, J., & Zhao, X. (2019). The energy and exergy analysis on the performance of counter-flow heat and mass exchanger for M-cycle indirect evaporative cooling. Thermal Science, 23(2 Part A), 613-623.
23. [23] KHOSRAVİ, Nima; AYDIN, Devrim. Investigation of a Storage Type Solar-Driven Solid Desiccant Cooling System. Gazi University Journal of Science Part C: Design and Technology, 2021, 9.3: 463-477.
24. [24] Sajjad, U., Abbas, N., Hamid, K., Abbas, S., Hussain, I., Ammar, S. M., ... & Wang, C. C. (2021). A review of recent advances in indirect evaporative cooling technology. International Communications in Heat and Mass Transfer, 122, 105140.
25. [25] ÖZDEN, E., PARLAMIŞ, H., & BÜKER, M. S. Karşı Akışlı Dolaylı bir Evaporatif Soğutucunun Soğutma Performansının Sayısal Analizi. El-Cezeri Journal of Science and Engineering, 7(3), 1074-1087.