Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

A full-range moisture sorption model for cellulose-based materials yielding consistent net isosteric heat of sorption

Tryding, Johan LU ; Askfelt, Henrik LU ; Alexandersson, Marcus LU and Ristinmaa, Matti LU orcid (2023) In Drying Technology 41(1). p.61-76
Abstract

A structured approach to derive the water activity function of cellulose-based materials which describe the sorption behavior from dry fiber up to the fiber saturation point is proposed. The coupling between the sorption isotherm and the net isosteric heat of sorption is incorporated in a consistent way, which allows for coupled heat-diffusion problems to be solved. Three different models are derived, generalizations of the classic Oswin and Henderson isotherm models and a new model denoted LW. Experimental data from the literature is used to evaluate and compare model performance to the GAB model, and it is shown that generalizations of the classic Oswin, Henderson isotherms and the new LW model perform well.

Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
fiber saturation point, moisture sorption isotherm, Net isosteric heat of sorption, paper fibers, water activity function
in
Drying Technology
volume
41
issue
1
pages
61 - 76
publisher
TAPPI
external identifiers
  • scopus:85131761009
ISSN
0737-3937
DOI
10.1080/07373937.2022.2084104
language
English
LU publication?
yes
id
56cc34da-b181-430e-9f10-25ba4262a51d
date added to LUP
2022-09-07 14:13:39
date last changed
2023-10-06 10:07:48
@article{56cc34da-b181-430e-9f10-25ba4262a51d,
  abstract     = {{<p>A structured approach to derive the water activity function of cellulose-based materials which describe the sorption behavior from dry fiber up to the fiber saturation point is proposed. The coupling between the sorption isotherm and the net isosteric heat of sorption is incorporated in a consistent way, which allows for coupled heat-diffusion problems to be solved. Three different models are derived, generalizations of the classic Oswin and Henderson isotherm models and a new model denoted LW. Experimental data from the literature is used to evaluate and compare model performance to the GAB model, and it is shown that generalizations of the classic Oswin, Henderson isotherms and the new LW model perform well.</p>}},
  author       = {{Tryding, Johan and Askfelt, Henrik and Alexandersson, Marcus and Ristinmaa, Matti}},
  issn         = {{0737-3937}},
  keywords     = {{fiber saturation point; moisture sorption isotherm; Net isosteric heat of sorption; paper fibers; water activity function}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{61--76}},
  publisher    = {{TAPPI}},
  series       = {{Drying Technology}},
  title        = {{A full-range moisture sorption model for cellulose-based materials yielding consistent net isosteric heat of sorption}},
  url          = {{http://dx.doi.org/10.1080/07373937.2022.2084104}},
  doi          = {{10.1080/07373937.2022.2084104}},
  volume       = {{41}},
  year         = {{2023}},
}