Numerical simulation of water spray for pre-cooling of inlet air in natural draft dry cooling towers

Alkhedhair, Abdullah, Gurgenci, Hal, Jahn, Ingo, Guan, Zhiqiang and He, Suoying (2013) Numerical simulation of water spray for pre-cooling of inlet air in natural draft dry cooling towers. Applied Thermal Engineering, 61 2: 416-424. doi:10.1016/j.applthermaleng.2013.08.012


Author Alkhedhair, Abdullah
Gurgenci, Hal
Jahn, Ingo
Guan, Zhiqiang
He, Suoying
Title Numerical simulation of water spray for pre-cooling of inlet air in natural draft dry cooling towers
Journal name Applied Thermal Engineering   Check publisher's open access policy
ISSN 1359-4311
1873-5606
Publication date 2013-11-03
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.applthermaleng.2013.08.012
Volume 61
Issue 2
Start page 416
End page 424
Total pages 9
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Collection year 2014
Language eng
Abstract This paper presents a numerical investigation of inlet air pre-cooling with water sprays to enhance the performance in Natural Draft Dry Cooling Towers (NDDCT). A 3-D numerical model of a test channel was generated and the evaporation from a single spray nozzle was analyzed. The droplet evaporation and the resulting cooling of air were predicted for a range of inlet air conditions and spray characteristics. The results showed that up to 81% evaporation can be achieved for water droplets of 20 μm at a velocity of 1 m/s and that, droplet transport and evaporation strongly depend on droplet size and air velocity.
Keyword Natural draft cooling towers
Spray cooling
Pre-cooling
Numerical modelling
Complete evaporation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2014 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 19 times in Thomson Reuters Web of Science Article | Citations
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Created: Thu, 31 Oct 2013, 20:57:24 EST by Zhiqiang Guan on behalf of School of Mechanical and Mining Engineering