On the influence of psychrometric ambient conditions on cooling tower drift deposition
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Lucas Miralles, Manuel; Ruiz Ramírez, Javier; Sánchez Kaiser, Antonio; Viedma Robles, Antonio; Martínez Beltrán, Pedro JuanResearch Group
Mecánica de Fluidos e Ingeniería TérmicaKnowledge Area
Mecánica de FluidosPublication date
2010-01-31Publisher
ElsevierBibliographic Citation
LUCAS, M., MARTÍNEZ, P.J., RUIZ, J., SÁNCHEZ KAISER, A., VIEDMA, A. On the influence of psychrometric ambient conditions on cooling tower drift deposition. International Journal of Heat and Mass Transfer, 53 (4): 594-604, Enero 2010. ISSN 0017-9310Keywords
Cooling towersLegionaries’ disease
Drift
CFD
Deposition
Torres de refrigeración
Deposición
Legionela
Deriva
Abstract
Water drift emitted from cooling towers is objectionable for several reasons, mainly due to human health reasons. A numerical model to study the influence of sychrometric ambient conditions on cooling tower drift deposition was developed. The mathematical model presented, consisting of two coupled sets of conservation equations for the continuous and discrete phases, was incorporated in the general purpose CFD code Fluent. Both experimental plume performance and drift deposition were employed to validate the numerical results. This study shows the influence of variables like ambient dry bulb temperature, ambient absolute humidity and droplet exit temperature from cooling tower on the drift evaporation (and therefore deposition) and on the zone affected by the cooling
tower. The stronger effect detected corresponds to the ambient dry bulb temperature.
When a higher ambient temperature was present, deposition was lower (evaporation was therefore higher) and the zone affected by the cooling ...
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