Go to:
Logótipo
Comuta visibilidade da coluna esquerda
Você está em: Start > Publications > View > Mass transfer from cylinders and plane surfaces buried in packed beds in alignment with the flow direction
Publication

Mass transfer from cylinders and plane surfaces buried in packed beds in alignment with the flow direction

Title
Mass transfer from cylinders and plane surfaces buried in packed beds in alignment with the flow direction
Type
Article in International Scientific Journal
Year
2006
Authors
M. A. Alves
(Author)
FEUP
View Personal Page You do not have permissions to view the institutional email. Search for Participant Publications View Authenticus page View ORCID page
J. M. P. Q. Delgado
(Author)
Other
View Personal Page You do not have permissions to view the institutional email. Search for Participant Publications View Authenticus page View ORCID page
J. R. F. Guedes de Carvalho
(Author)
Other
The person does not belong to the institution. The person does not belong to the institution. The person does not belong to the institution. Without AUTHENTICUS Without ORCID
Journal
Vol. 61 No. 2
Pages: 1174-1183
ISSN: 0009-2509
Indexing
Scientific classification
FOS: Engineering and technology > Chemical engineering
Other information
Authenticus ID: P-004-NC4
Abstract (EN): The present work describes the mass transfer process between a moving fluid and a slightly soluble cylinder buried in a packed bed, in alignment with the direction of flow. The bed of inert particles is taken to have uniform voidage. Numerical solution of the partial differential equation (PDE) describing mass conservation of the solute gave the concentration field near the soluble surface and the mass transfer flux was integrated to give values of the Sherwood number as a function of the relevant parameters. A mathematical expression is proposed (given as Eq. (32) in the paper) that describes accurately the dependence found numerically between the value of the Sherwood number and the values of Peclet number and aspect ratio, L/d(1), of the cylinder. For large enough diameter of the cylinder, the problem degenerates into mass transfer from a plane surface and the same equation applies, with L/d(1) = 0. The equation was tested through the measurement of diffusivity for different solutes released by slightly soluble solids, and the experimental values obtained were in excellent agreement with the values found in literature. An important feature of the paper is the detailed discussion of the finite difference method adopted, with emphasis on the high-resolution schemes used in the discretisation of the convection term of the PDE.
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 10
Documents
We could not find any documents associated to the publication with allowed access.
Related Publications

Of the same authors

A simple and inexpensive technique to measure molecular diffusion coefficients (2005)
Article in International Scientific Journal
J. M. P. Q. Delgado; M. A. Alves; J. R. F. Guedes de Carvalho

Of the same journal

MASS-TRANSFER TO LARGE PARTICLES IN FLUIDIZED-BEDS OF SMALLER PARTICLES - COMMENT (1986)
Another Publication in an International Scientific Journal
decarvalho, jrfg; coelho, man
2 SOLUTION METHODS FOR HYPERBOLIC SYSTEMS OF PARTIAL-DIFFERENTIAL EQUATIONS IN CHEMICAL-ENGINEERING (1991)
Article in International Scientific Journal
José Miguel Loureiro; Alírio Rodrigues
Wrong-way behavior in packed-bed reactors with "large-pore" catalysts (1994)
Article in International Scientific Journal
Almeida Costa, CA; Quinta Ferreira, RMQ; Alírio Rodrigues
Water transport through a PEM fuel cell: A one-dimensional model with heat transfer effects (2009)
Article in International Scientific Journal
Falcão D. S. ; Oliveira V.B.; Rangel C.M. ; Pinho C.; Pinto A. M. F. R.

See all (192)

Recommend this page Top
Copyright 1996-2020 © Reitoria da Universidade do Porto  I Terms and Conditions  I Acessibility  I Index A-Z  I Guest Book
Page created on: 2020-02-22 00:55:12