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Título

Penetration of aerosol undergoing combined electrostatic dispersion

AutorAlonso Gámez, Manuel; Alguacil, Francisco José
Palabras claveAerosol deposition
Diffusion
Space-charge
Fecha de publicación2007
EditorElsevier
CitaciónJournal of Aerosol Science 38 (5) : 481-493 (2007)
ResumenThe deposition of unipolarly charged aerosol particles by simultaneous Brownian diffusion and electrostatic dispersion (spacecharge) in laminar flow tubes has been modelled in two different ways. In the first approach, the rigorous transport equation has been solved numerically under the restriction of negligible axial components of the particle Brownian motion and of the space-charge electric field. The thus calculated theoretical penetrations agree satisfactorily with the experimental results obtained for air ions. Second, the system has also been modelled from a phenomenological point of view, based on the fact that deposition by diffusion and space-charge follows first- and second-order kinetics, respectively. The latter approach yields a simple and practical equation correlating particle penetration with tube geometry, aerosol flow rate, and particle mobility and concentration.
Versión del editorhttp://dx.doi.org/10.1016/j.jaerosci.2007.03.001
URIhttp://hdl.handle.net/10261/46319
DOI10.1016/j.jaerosci.2007.03.001
ISSN00218502
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