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Steam drying a bed of porous spheres: Theory and experiment

Hager, J; Wimmerstedt, Roland LU and Whitaker, S (2000) In Chemical Engineering Science 55(9). p.1675-1698
Abstract
The process of steam drying a bed of porous spheres is analysed in terms of a hybrid model that makes use of volume averaged transport equations for the fluid flowing in the bed and point equations for the heat and mass transport taking place in the spheres. To verify the model, a series of experiments with varying mass flux and steam temperature were carried out at atmospheric pressure using ceramic and Al2O3 porous spheres. The comparison between theory and experiment gives good agreement for the total drying rate and the outlet steam temperature for both materials, while the prediction of the internal particle temperatures shows some deviation from the experimental results. (C) 2000 Elsevier Science Ltd. All rights reserved.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
particles, porous, volume average, hybrid model, superheated steam, steam drying
in
Chemical Engineering Science
volume
55
issue
9
pages
1675 - 1698
publisher
Elsevier
external identifiers
  • wos:000084916800015
  • scopus:0343776153
ISSN
0009-2509
DOI
10.1016/S0009-2509(99)00398-X
language
English
LU publication?
yes
id
70038ace-aa1c-4726-b8b7-c04d224b99e5 (old id 3917248)
date added to LUP
2013-07-03 12:53:55
date last changed
2017-09-24 04:30:33
@article{70038ace-aa1c-4726-b8b7-c04d224b99e5,
  abstract     = {The process of steam drying a bed of porous spheres is analysed in terms of a hybrid model that makes use of volume averaged transport equations for the fluid flowing in the bed and point equations for the heat and mass transport taking place in the spheres. To verify the model, a series of experiments with varying mass flux and steam temperature were carried out at atmospheric pressure using ceramic and Al2O3 porous spheres. The comparison between theory and experiment gives good agreement for the total drying rate and the outlet steam temperature for both materials, while the prediction of the internal particle temperatures shows some deviation from the experimental results. (C) 2000 Elsevier Science Ltd. All rights reserved.},
  author       = {Hager, J and Wimmerstedt, Roland and Whitaker, S},
  issn         = {0009-2509},
  keyword      = {particles,porous,volume average,hybrid model,superheated steam,steam drying},
  language     = {eng},
  number       = {9},
  pages        = {1675--1698},
  publisher    = {Elsevier},
  series       = {Chemical Engineering Science},
  title        = {Steam drying a bed of porous spheres: Theory and experiment},
  url          = {http://dx.doi.org/10.1016/S0009-2509(99)00398-X},
  volume       = {55},
  year         = {2000},
}