Artículo
The settling of fine cohesive powders
Autor/es | Valverde Millán, José Manuel
Sánchez Quintanilla, Miguel Angel Castellanos Mata, Antonio Mills, Pierre |
Fecha de publicación | 2001-05-01 |
Fecha de depósito | 2017-07-19 |
Publicado en |
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Resumen | We investigate the settling of an initially fluidized bed of a fine cohesive powder. Experimental results on the sedimentation rate cannot be fitted by theoretical and empirical equations existing in the literature and ... We investigate the settling of an initially fluidized bed of a fine cohesive powder. Experimental results on the sedimentation rate cannot be fitted by theoretical and empirical equations existing in the literature and derived for non-cohesive spheres. We extend these equations to account for the adhesion-induced aggregation of fine particles. The number of particles per aggregate N and the ratio of aggregate radius R to particle radius, a, have been chosen as fitting parameters. Results from two independent approaches are in very good agreement with the experimental data for approximately the same values of N and R. Pictures taken from the fluidized bed show that the average aggregate radius matches the predicted one. |
Agencias financiadoras | Ministerio de Ciencia y Tecnología (MCYT). España |
Identificador del proyecto | PB96-1375 |
Cita | Valverde Millán, J.M., Sánchez Quintanilla, M.A., Castellanos Mata, A. y Mills, P. (2001). The settling of fine cohesive powders. Europhysics Letters, 54 (3), 329-334. |
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