A full-range moisture sorption model for cellulose-based materials yielding consistent net isosteric heat of sorption
(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.
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https://lup.lub.lu.se/record/56cc34da-b181-430e-9f10-25ba4262a51d
- author
- Tryding, Johan LU ; Askfelt, Henrik LU ; Alexandersson, Marcus LU and Ristinmaa, Matti LU
- organization
- publishing date
- 2023
- 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}}, }