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Modeling fixed-bed drying of bark

Huttunen, Marcus; Holmberg, André LU and Stenström, Stig LU (2017) In Drying Technology 35(1). p.97-107
Abstract

A model for fixed-bed drying of bark has been developed. The model takes heat and mass transfer between the air and bark into account and the volumetric heat transfer coefficient was used as fitting parameter in the model. The assumption of adiabatic saturation of the air leads to too high drying rates but a model with three size fractions shows good agreement both between experimental laboratory data and data from an industrial dryer. A sensitivity analysis for different air temperatures, air velocities, and bed heights show how the dryer capacity depends on these parameters.

Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Bark, bed dryer, capacity, industrial, modeling
in
Drying Technology
volume
35
issue
1
pages
11 pages
publisher
TAPPI
external identifiers
  • scopus:85008392541
ISSN
0737-3937
DOI
10.1080/07373937.2016.1161645
language
English
LU publication?
yes
id
0a1cdb0c-e249-4663-ae99-bf5fb9aac97d
date added to LUP
2017-03-15 14:38:44
date last changed
2017-03-15 14:38:44
@article{0a1cdb0c-e249-4663-ae99-bf5fb9aac97d,
  abstract     = {<p>A model for fixed-bed drying of bark has been developed. The model takes heat and mass transfer between the air and bark into account and the volumetric heat transfer coefficient was used as fitting parameter in the model. The assumption of adiabatic saturation of the air leads to too high drying rates but a model with three size fractions shows good agreement both between experimental laboratory data and data from an industrial dryer. A sensitivity analysis for different air temperatures, air velocities, and bed heights show how the dryer capacity depends on these parameters.</p>},
  author       = {Huttunen, Marcus and Holmberg, André and Stenström, Stig},
  issn         = {0737-3937},
  keyword      = {Bark,bed dryer,capacity,industrial,modeling},
  language     = {eng},
  month        = {01},
  number       = {1},
  pages        = {97--107},
  publisher    = {TAPPI},
  series       = {Drying Technology},
  title        = {Modeling fixed-bed drying of bark},
  url          = {http://dx.doi.org/10.1080/07373937.2016.1161645},
  volume       = {35},
  year         = {2017},
}