Simulation of Convective Drying of Wet Porous Materials,
(2003) In Drying Technology 21(8). p.1411-1431- Abstract
- A simulation model for convective drying of wet porous materials was developed. For the simulation, we measured the moisture diffusivities within them and applied a modified Dubinin-Astakhov equation to the moisture sorption data for a membrane filter. The simulation results not accounting for internal mass transfer resistance were quite different from the experimental ones. The drying characteristics calculated by a shrinking core model with effective moisture diffusivity represented a much lower drying rate and much higher temperatures, respectively, than the experimental ones. This meant that we must consider the plural moisture transport mechanisms within the samples. Therefore, we calculated the drying rate and temperatures with an... (More)
- A simulation model for convective drying of wet porous materials was developed. For the simulation, we measured the moisture diffusivities within them and applied a modified Dubinin-Astakhov equation to the moisture sorption data for a membrane filter. The simulation results not accounting for internal mass transfer resistance were quite different from the experimental ones. The drying characteristics calculated by a shrinking core model with effective moisture diffusivity represented a much lower drying rate and much higher temperatures, respectively, than the experimental ones. This meant that we must consider the plural moisture transport mechanisms within the samples. Therefore, we calculated the drying rate and temperatures with an apparent overall mass transfer coefficient damping with a decrease in the moisture content. The results accounting for the hygroscopic effects broadly agreed with the experimental ones by the evaluation. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/129305
- author
- Hashimoto, A ; Stenström, Stig LU and Kameoka, T
- organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Drying Technology
- volume
- 21
- issue
- 8
- pages
- 1411 - 1431
- publisher
- TAPPI
- external identifiers
-
- wos:000185970900003
- scopus:0345392762
- ISSN
- 1532-2300
- DOI
- 10.1081/DRT-120024486
- language
- English
- LU publication?
- yes
- id
- b446f3e5-3467-4094-bc51-8ef4a0e37d6b (old id 129305)
- date added to LUP
- 2016-04-01 11:39:21
- date last changed
- 2023-09-01 01:49:49
@article{b446f3e5-3467-4094-bc51-8ef4a0e37d6b,
abstract = {{A simulation model for convective drying of wet porous materials was developed. For the simulation, we measured the moisture diffusivities within them and applied a modified Dubinin-Astakhov equation to the moisture sorption data for a membrane filter. The simulation results not accounting for internal mass transfer resistance were quite different from the experimental ones. The drying characteristics calculated by a shrinking core model with effective moisture diffusivity represented a much lower drying rate and much higher temperatures, respectively, than the experimental ones. This meant that we must consider the plural moisture transport mechanisms within the samples. Therefore, we calculated the drying rate and temperatures with an apparent overall mass transfer coefficient damping with a decrease in the moisture content. The results accounting for the hygroscopic effects broadly agreed with the experimental ones by the evaluation.}},
author = {{Hashimoto, A and Stenström, Stig and Kameoka, T}},
issn = {{1532-2300}},
language = {{eng}},
number = {{8}},
pages = {{1411--1431}},
publisher = {{TAPPI}},
series = {{Drying Technology}},
title = {{Simulation of Convective Drying of Wet Porous Materials,}},
url = {{http://dx.doi.org/10.1081/DRT-120024486}},
doi = {{10.1081/DRT-120024486}},
volume = {{21}},
year = {{2003}},
}