An investigation on spray cooling using saline water with experimental verification

Sadafi, M. H., Gonzalez Ruiz, S., Vetrano, M. R., Jahn, I., van Beeck, J., Buchlin, J. M. and Hooman, K. (2016) An investigation on spray cooling using saline water with experimental verification. Energy Conversion and Management, 108 336-347. doi:10.1016/j.enconman.2015.11.025


Author Sadafi, M. H.
Gonzalez Ruiz, S.
Vetrano, M. R.
Jahn, I.
van Beeck, J.
Buchlin, J. M.
Hooman, K.
Title An investigation on spray cooling using saline water with experimental verification
Journal name Energy Conversion and Management   Check publisher's open access policy
ISSN 0196-8904
1879-2227
Publication date 2016-01-15
Year available 2015
Sub-type Article (original research)
DOI 10.1016/j.enconman.2015.11.025
Open Access Status Not Open Access
Volume 108
Start page 336
End page 347
Total pages 12
Place of publication London, United Kingdom
Publisher Elsevier
Language eng
Abstract A natural draft dry cooling tower rejects heat in a power plant. Spray cooling of the inlet air to the cooling tower improves the total efficiency of the power plant. To overcome the scarcity of natural water sources, this research is studying the usage of saline water in spray assisted dry cooling towers. A nozzle is analysed experimentally. It is shown that the CFD model captures the spray well. A full cone spray is simulated in a vertical cylindrical domain representative of cooling tower flows. To investigate the influences of initial and ambient conditions on the spray performance, fourteen different cases are simulated and trends analysed. It is shown that the distances from the nozzle, after which the dry stream starts (wet lengths), are in the range of 4.3–5.25 m depending on the test conditions. A dimensionless study is performed on the wet length and cooling efficiency as the two main parameters. Finally, to predict the wet length and cooling efficiency, two dimensionless correlations are presented and their impact on cooling tower operation is discussed.
Keyword Saline water
Spray cooling
Phase Doppler Interferometry
Discrete phase model
Heat and mass transfer
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2016 Collection
 
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