Development of an Experimental Indirect Evaporative Air-cooling System

Main Article Content

Norbert Szaszák

Abstract

In this paper an experimental air conditioning system is presented which has significantly lower expected electrical energy consumption than that of the conventional compressor-operated ones in a basis of same cooling power. The cooling of the air is provided by cool hygroscopic salt solution while it is capable to dry the treated air. The salt solution is re-cooled in a heat exchanger where its heat is transferred to cooled soft water. The cooling of the soft water is provided by its evaporation into the ambient air in an evaporative chiller. Thus, the extracted heat energy of the treated air is transformed to the latent heat of the water vapour which is exhausted to the external environment. In this paper the structure of the system and the function of each part is presented. The operation and the technical implementation of the evaporative chiller is presented in detail.

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How to Cite
Szaszák, Norbert. 2023. “Development of an Experimental Indirect Evaporative Air-Cooling System”. Jelenkori Társadalmi és Gazdasági Folyamatok 18 (Különszám):487-94. https://doi.org/10.14232/jtgf.2023.kulonszam.487-494.
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Articles
Author Biography

Norbert Szaszák, Miskolci Egyetem

egyetemi docens

References

Amer, O., Boukhanouf, R., Ibrahim, H. G. (2015): A Review of Evaporative Cooling Technologies. Int. J. of Environmental Science and Development, 6 (2): 111–117. https://doi.org/10.7763/IJESD.2015.V6.571

ANSI/ASHRAE standard 55–2010 (1971): Thermal Environmental Conditions for Human Occupancy. American Society for Heating, Refrigerating and Air Conditioning Engineers Inc, Tullie Circle, NE, Atlanta.

Bishoyi, D., Sudhakar, K. (2017): Experimental performance of a direct evaporative cooler in composite climate of India. Energy and Buildings, 153: 190–200. https://doi.org/10.1016/j.enbuild.2017.08.014

Camargo, J. R., Ebinuma, C. D., Cardoso, S., (2003): A mathematical model for direct evaporative cooling air conditioning system. Engenharia Térmica, 4: 30–34. http://dx.doi.org/10.5380/reterm.v2i2.3473

Camargo, J. R., Ebinuma, C. D., Silveira, J. L. (2005): Experimental performance of a direct evaporative cooler operating during summer in a Brazilian city. Int. J. Refriger., 28 (7): 1124–1132. http://www.doi.org/10.1016/j.ijrefrig.2004.12.011

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. http://dx.doi.org/10.1016/j.rser.2012.07.007

Gao, W. Z., Shi, Y. R., Cheng, Y. P., Sun, W. Z. (2013): Experimental study on partially internally cooled dehumidification in liquid desiccant air conditioning system. Energy and buildings 61: 202–209. https://doi.org/10.1016/j.enbuild.2013.02.034

Kovacevic, I., Sourbron, M. (2017): The numerical model for direct evaporative cooler. Appl. Therm. Eng., 113 (6): 8–19. http://dx.doi.org/10.1016/j.applthermaleng.2016.11.025

Guan, L., Bennett, M., Bell, J. (2015): Evaluating the potential use of direct evaporative cooling in Australia. Energy Build., 108: 185–194. https://doi.org/10.1016/j.enbuild.2015.09.020

Moran, J. M., Shapiro, H. N., Boettner, D. D., Bailey, M. B. (2014): Fundamentals of Engineering Thermodynamics (8th issue). John Wiley & Sons Inc., Hoboken, New Jersey.

Rafique, M. M., Gandhidasan, P. Rehman, S. L., Al-Hadhrami, M. A. (2015): Review on desiccant based evaporative cooling systems. Renew. Sustain. Energy Rev. 45: 145–159. https://doi.org/10.1016/j.rser.2015.01.051

Shaharon, M. N., Jalaludin, J. (2012): Thermal comfort assessment-A study toward workers' satisfaction in a low energy office building. American Journal of Applied Sciences, 9 (7): 1037–1045. https://doi.org/10.3844/ajassp.2012.1037.1045

Szaszák, N., Juhász, A. (2022): Experimental indirect evaporative air conditioning system - a possible implementation. MATEC Web of Conferences, 367: 00021. https://doi.org/10.1051/matecconf/202236700021