THERMAL SCIENCE

International Scientific Journal

EXPERIMENTAL INVESTIGATION OF THE THERMAL PERFORMANCE OF WET COOLING TOWER WITH SPLASH FILLS PACKING

ABSTRACT
With the increasing intensity of the ecological and environmental problems and the scarcity of fresh water, this paper was introduced to investigate the ability to use treated wastewater as a cooling media via studying its behavior throughout a cooling tower. The simultaneous transfer of heat and mass from the treated wastewater to air over splash-fill packing arranged in a zigzag manner was studied. The characteristic of the cooling tower, the outlet water temperature, and the rejected heat were investigated as the water-to-air ratio and inlet water temperature were varied. The core results show that the cooling tower of the tower decreases with increasing water-to-air ratio, and increases with the raise of inlet water temperature. Moreover, relationships between cooling tower and water-to-air ratio were obtained for each. It was also observed that the outlet water temperature increases gradually with increasing water-to-air ratio and temperature, and the difference between the inlet and outlet temperature becomes larger by increasing the inlet temperature. The heat rejected value increases with increasing the air-flow rate, water flow rate, and temperature. This study revealed that cooling tower of splash fills arranged in a zigzag manner was higher compared to other types of packing. In the same time, the results for the treated wastewater and fresh water were very close that gives approximate behavior, and this can save a huge amount of fresh water for other humanistic utilization, along with taking benefit from the treatment process of wastewater instead of through it into the aquatic systems.
KEYWORDS
PAPER SUBMITTED: 2021-06-21
PAPER REVISED: 2021-11-03
PAPER ACCEPTED: 2021-12-04
PUBLISHED ONLINE: 2022-02-05
DOI REFERENCE: https://doi.org/10.2298/TSCI210621004A
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2022, VOLUME 26, ISSUE Issue 2, PAGES [1603 - 1613]
REFERENCES
  1. Rokni, M. Performance comparison on repowering of a steam power plant with gas turbines and solid oxide fuel cells. Energies 2016, 9.
  2. Berina DELALIC-GURDA, Dzana KADRIC, and Nijaz DELALIC, Performance characteristic of mechanical draft cooling tower in thermal power plant, THERMAL SCIENCE, Vol. 24, (2020), No. 2B, pp. 1423-1433
  3. M. H. Panjeshahi, A. Ataei, M. Gharaie, R. Parand, Optimum design of cooling water systems for energy and water conservation, Chem. Eng. Res. Des. 87 (2009), 200-209.
  4. Xinxin Maab, Liping Caic,Lisheng Chend, Benhua Feiab, Jiping Lue, Changlei Xia, Su Shiung Lam, Bamboo grid versus polyvinyl chloride as packing material in cooling tower: Energy efficiency and environmental impact assessment, Journal of Environmental Management, Volume 286 (15 May 2021), 112190
  5. A. V. Dmitriev, I. N. Madyshev, V. V. Kharkov, O. S. Dmitrieva, V. E. Zinurov, Experimental investigation of fill pack impact on thermal-hydraulic performance of evaporative cooling tower, Thermal Science and Engineering Progress, 22, (1 May 2021), 100835.
  6. Arif Emre OZGUR, and Hilmi Cenk BAYRAKCI, Experimental investigation of air side pressure loss for wet-cooling tower filles, THERMAL SCIENCE: Vol. 24, (2020) No. 3B, pp. 2047-2053
  7. R. Ramkumar, A. Ragupathy, Optimization of cooling tower performance with different types of packings using Taguchi approach, J Braz. Soc. Mech. Sci. Eng. DOI 10.1007/s40430-014-0216-1.
  8. Shaymaa A. Ahmed, Sheam B. Abdul Kareem, and Hasan F. Makki, Investigation hydraulic performance of plash fills packing in cooling tower, AIP Conference Proceedings, (2020),2213, 020156.
  9. M. Hall Stephen, "Rules of Thumbs for Chemical Engineers", (Elsevier Inc, 2018).
  10. Rohit K. Singla, Kuljeet Singh, Ranjan Das, Tower characteristics correlation and parameter retrieval in wet cooling tower with expanded wire mesh packing, Applied Thermal Engineering 96 (2016), pp 240-249.
  11. Qing Jie Kong, Xue Yi Zhao, De Qiang Xie, Ben Zhang, and Pei Wang, Experimental investigation of the heat and mass transfer phenomena in a counterflow wet cooling tower with foam ceramic packing, Advances in Mechanical Engineering, 10 (2018), (1), pp.1-11.
  12. Singh K, Das R. An experimental and multi-objective optimization study of a forced draft cooling tower with different fills. Energy Conversion and Management. 2016 Mar 1.
  13. Mohammad Amini, Masoud Zareh, Saeid Maleki, (Thermal performance analysis of mechanical draft cooling tower filled with rotational splash type packing by using nano-fluids), Applied Thermal Engineering, 175 (2020), 115268.
  14. Feeley, T.J., Ramezan, M., Electric utilities and water: emerging issues and R&D needs. In: Proceedings, 9th Annual Industrial Wastes Technical and Regulatory Conference. Water Environment Federation, San Antonio, TX, USA, 2003.
  15. Gabriel Markovic, 2018, "Possibilities of Alternative Water Sources in Slovakia", First Online 10 April 2018, DOI, doi.org/10.1007/698_2017_191, Publisher Name Springer, Berlin, Heidelberg
  16. Reza Javadpour, Saeed Zeinali Heris, Yaghoub Mohammadfam, Optimizing the effect of concentration and flow rate of water/ MWCNTs nanofluid on the performance of a forced draft cross-flow cooling tower, Energy, Volume 217 (15 February 2021), 119420
  17. Jonas Löwenberg, Jörn Ansgar Baum, Yannick-Serge Zimmermann, Cornelis Groot, Wilbert van den Broek, Thomas Wintgens, Comparison of Pre-Treatment Technologies Towards Improving Reverse Osmosis Desalination of Cooling Tower Blow Down, Desalination 357 (2015),140-149
  18. Hsieh Ming-Kai., Heng Li, Shih-Hsiang Chien, Jason D. Monnell, Indranil Chowdhury, David A. Dzombak, Radisav D. Vidic, 2010, Corrosion Control When Using Secondary Treated Municipal Wastewater as Alternative Makeup Water for Cooling Tower Systems, Water Environment Research, Volume 82 (2010), Number 12.
  19. Johannes C. Kloppers Detlev G. Kro¨ger, Cooling Tower Performance Evaluation: Merkel, Poppe, and e-NTU Methods of Analysis, Journal of Engineering for Gas Turbines and Power, vol.127, (JANUARY 2005).
  20. Li Yingjian, You Xinkui, Qiu Qi, Li Jiezhi, The study on the evaporation cooling efficiency and effectiveness of cooling tower of film type, , 52(2011),53-59.
  21. Rohit K. Singla, Kuljeet Singh, Ranjan Das, Tower characteristics correlation and parameter retrieval in wetcooling tower with expanded wire mesh packing, Applied Thermal Engineering 96 (2016) 240-249.
  22. R. Perry, D. Green, J. Maloney, Perry's chemical engineers' handbook, 1997.
  23. M. Lemouari, M. Boumaza, I.M. Mujtaba, Thermal performances investigation of a wet cooling tower, Applied Thermal Engineering 27 (2007).

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence