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Modelling multiphase transport in deformable cellulose based materials exhibiting internal mass exchange and swelling.

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Title: Modelling multiphase transport in deformable cellulose based materials exhibiting internal mass exchange and swelling.
Authors: Alexandersson, M.1 marcus.alexandersson@solid.lth.se, Ristinmaa, M.1
Source: International Journal of Engineering Science. Jul2018, Vol. 128, p101-126. 26p.
Subjects: Cellulose, Porous materials, Thermodynamics, Solid phase extraction, Gas phase reactions
Abstract: A thermodynamically consistent model for porous cellulose networks is proposed. A general theory is developed based on mixture theory using chemical potentials as flow potentials. The material is decomposed into three phases, solid, liquid and gas, where the solid and gas phases are further separated into dry fiber and fiber water, water vapor and dry air, respectively. Between the phases interfaces are present and their influence on the mass exchange of water is incorporated. Emphasis is placed on the dynamics in mass exchange of water which allows for description of non-equilibrium states. The driving force for reaching equilibrium is given by the chemical potential difference. Constitutive relations relevant for paperboard are proposed and illustrative simulations are carried out to reveal the dynamics of mass exchange. The model enables analysis of transient flow accounting for effects of deformation, swelling and moisture sorption dynamics. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Engineering Science is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 129336366
AccessLevel: 6
PubType: Periodical
PubTypeId: serialPeriodical
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  Data: Modelling multiphase transport in deformable cellulose based materials exhibiting internal mass exchange and swelling.
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  Data: <searchLink fieldCode="AR" term="%22Alexandersson%2C+M%2E%22">Alexandersson, M.</searchLink><relatesTo>1</relatesTo><i> marcus.alexandersson@solid.lth.se</i><br /><searchLink fieldCode="AR" term="%22Ristinmaa%2C+M%2E%22">Ristinmaa, M.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Engineering+Science%22">International Journal of Engineering Science</searchLink>. Jul2018, Vol. 128, p101-126. 26p.
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  Data: <searchLink fieldCode="DE" term="%22Cellulose%22">Cellulose</searchLink><br /><searchLink fieldCode="DE" term="%22Porous+materials%22">Porous materials</searchLink><br /><searchLink fieldCode="DE" term="%22Thermodynamics%22">Thermodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Solid+phase+extraction%22">Solid phase extraction</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+phase+reactions%22">Gas phase reactions</searchLink>
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  Label: Abstract
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  Data: A thermodynamically consistent model for porous cellulose networks is proposed. A general theory is developed based on mixture theory using chemical potentials as flow potentials. The material is decomposed into three phases, solid, liquid and gas, where the solid and gas phases are further separated into dry fiber and fiber water, water vapor and dry air, respectively. Between the phases interfaces are present and their influence on the mass exchange of water is incorporated. Emphasis is placed on the dynamics in mass exchange of water which allows for description of non-equilibrium states. The driving force for reaching equilibrium is given by the chemical potential difference. Constitutive relations relevant for paperboard are proposed and illustrative simulations are carried out to reveal the dynamics of mass exchange. The model enables analysis of transient flow accounting for effects of deformation, swelling and moisture sorption dynamics. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Engineering Science is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.ijengsci.2018.03.013
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 26
        StartPage: 101
    Subjects:
      – SubjectFull: Cellulose
        Type: general
      – SubjectFull: Porous materials
        Type: general
      – SubjectFull: Thermodynamics
        Type: general
      – SubjectFull: Solid phase extraction
        Type: general
      – SubjectFull: Gas phase reactions
        Type: general
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      – TitleFull: Modelling multiphase transport in deformable cellulose based materials exhibiting internal mass exchange and swelling.
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            NameFull: Alexandersson, M.
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            NameFull: Ristinmaa, M.
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              M: 07
              Text: Jul2018
              Type: published
              Y: 2018
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              Value: 128
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            – TitleFull: International Journal of Engineering Science
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