Experimental study on inlet air cooling by water spray for natural draft dry cooling towers enhancement
Paper
Paper/Presentation Title | Experimental study on inlet air cooling by water spray for natural draft dry cooling towers enhancement |
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Presentation Type | Paper |
Authors | Alkhedhair, A., Guan, Z., Gurgenci, H., Jahn, I. and He, S. |
Journal or Proceedings Title | Proceedings of the 19th Australasian Fluid Mechanics Conference (AFMC 2014) |
Number of Pages | 4 |
Year | 2014 |
Place of Publication | Australia |
ISBN | 9780646596952 |
Web Address (URL) of Paper | https://www.afms.org.au/proceedings/19/Alkhedhair_et_al_2014.pdf |
Web Address (URL) of Conference Proceedings | https://www.afms.org.au/proceedings/19.html |
Conference/Event | 19th Australasian Fluid Mechanics Conference (AFMC 2014) |
Event Details | 19th Australasian Fluid Mechanics Conference (AFMC 2014) Parent Australasian Fluid Mechanics Conference Delivery In person Event Date 08 to end of 11 Dec 2014 Event Location Melbourne, Australia Event Venue Royal Melbourne Institute of Technology Event Web Address (URL) |
Abstract | This paper deals with an experimental investigation of inlet air pre-cooling with water sprays aimed to enhance the performance of Natural Draft Dry Cooling Towers during high ambient temperature periods. An open-circuit wind tunnel with a test 11 m 2 test cross section and length of 5.2 m was employed as an approximation to the inlet flow in a Natural Draft Cooling Tower. Experimental measurements of droplet evaporation and air cooling are presented. Nine high pressure, hollow cone nozzles were tested at various droplet sizes, air velocities (1, 2, 3 m/s), and injection rates under different ambient conditions. The water spray was characterized using a Phase Doppler Particle Analyser (PDPA). The effects of drop size distribution and air velocity on droplet evaporation and cooling effectiveness were investigated. The data shows clear trends of cooling with low air velocity or small droplet size distribution. It was found that the spray cooling efficiency, to a large extent, is dependent on spray coverage area. The experimental findings will benefit optimizing spray cooling performance in Natural Draft Dry Cooling Towers and nozzle arrangement. |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 4012. Fluid mechanics and thermal engineering |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Queensland |
King Abdulaziz City for Science and Technology, Saudi Arabia |
https://research.usq.edu.au/item/z2106/experimental-study-on-inlet-air-cooling-by-water-spray-for-natural-draft-dry-cooling-towers-enhancement
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