Numerical simulation of water spray for pre-cooling of inlet air in natural draft dry cooling towers
Article
Article Title | Numerical simulation of water spray for pre-cooling of inlet air in natural draft dry cooling towers |
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ERA Journal ID | 3658 |
Article Category | Article |
Authors | Alkhedhair, Abdullah, Gurgenci, Hal, Jahn, Ingo, Guan, Zhiqiang and He, Suoying |
Journal Title | Applied Thermal Engineering |
Journal Citation | 61 (2), pp. 416-424 |
Number of Pages | 9 |
Year | 2013 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 1359-4311 |
1873-5606 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.applthermaleng.2013.08.012 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S135943111300584X |
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. |
Keywords | Natural draft; Spray cooling; Pre-cooling; Numerical modelling; Complete evaporation |
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 |
https://research.usq.edu.au/item/z210q/numerical-simulation-of-water-spray-for-pre-cooling-of-inlet-air-in-natural-draft-dry-cooling-towers
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