Experimental study of the application of two trickle media for inlet air pre-cooling of natural draft dry cooling towers

He, Suoying, Guan, Zhiqiang, Gurgenci, Hal, Hooman, Kamel, Lu, Yuanshen and Alkhedhair, Abdullah M. (2015) Experimental study of the application of two trickle media for inlet air pre-cooling of natural draft dry cooling towers. Energy Conversion and Management, 89 644-654. doi:10.1016/j.enconman.2014.10.031


Author He, Suoying
Guan, Zhiqiang
Gurgenci, Hal
Hooman, Kamel
Lu, Yuanshen
Alkhedhair, Abdullah M.
Title Experimental study of the application of two trickle media for inlet air pre-cooling of natural draft dry cooling towers
Journal name Energy Conversion and Management   Check publisher's open access policy
ISSN 0196-8904
1879-2227
Publication date 2015-01-01
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.enconman.2014.10.031
Open Access Status Not yet assessed
Volume 89
Start page 644
End page 654
Total pages 11
Place of publication London, United Kingdom
Publisher Elsevier
Language eng
Subject 2105 Renewable Energy, Sustainability and the Environment
2104 Nuclear Energy and Engineering
2103 Fuel Technology
2102 Energy Engineering and Power Technology
Abstract This paper is part two of a broader investigation into pre-cooling the air that enters natural draft dry cooling towers. Evaporative cooling of air is to some extent different from evaporative cooling of water. Two trickle media (Trickle125 and Trickle100) originally designed for evaporative cooling of water were studied in an open-circuit wind tunnel for evaporative cooling of air. Three medium thicknesses (200, 300 and 450 mm) and two water flow rates (10 and 5 l/min per m horizontally exposed surface area) were used in the tests. The air velocities ranged from 0.5 to 3.0 m/s. The cooling efficiency and the pressure drop of the two media were curve fitted to yield a set of correlations. The pressure drop ranges for Trickle125 and Trickle100 were 0.7-50 Pa and 0.6-41.6 Pa, respectively. The cooling efficiencies of Trickle125 and Trickle100 fell within 15.7-55.1% and 11-44.4%, respectively. Generally, media with large effective surfaces provide high cooling efficiencies and high pressure drops; there is a trade-off between cooling efficiency and pressure drop when selecting a particular medium for a specific application. The water entrainment off the media was detected with water-sensitive papers, and both media had severe water entrainment at large air velocities.
Keyword Cooling efficiency
Pressure drop
Water entrainment
Wetted media
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online: 1 November 2014.

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2015 Collection
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 7 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 12 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 18 Nov 2014, 10:23:45 EST by System User on behalf of School of Mechanical and Mining Engineering