Handle URI:
http://hdl.handle.net/10754/599037
Title:
On Diffusion and Permeation
Authors:
Peppin, Stephen S. L.
Abstract:
Diffusion and permeation are discussed within the context of irreversible thermodynamics. A new expression for the generalized Stokes-Einstein equation is obtained which links the permeability to the diffusivity of a two-component solution and contains the poroelastic Biot-Willis coefficient. The theory is illustrated by predicting the concentration and pressure profiles during the filtration of a protein solution. At low concentrations the proteins diffuse independently while at higher concentrations they form a nearly rigid porous glass through which the fluid permeates. The theoretically determined pressure drop is nonlinear in the diffusion regime and linear in the permeation regime, in quantitative agreement with experimental measurements. © 2009 Walter de Gruyter, Berlin, New York.
Publisher:
Walter de Gruyter GmbH
Journal:
Journal of Non-Equilibrium Thermodynamics
KAUST Grant Number:
KUK-C1-013-04
Issue Date:
Jan-2009
DOI:
10.1515/JNETDY.2009.018
Type:
Article
ISSN:
0340-0204; 1437-4358
Sponsors:
This research was supported by the King Abdullah University of Science and Technology (KAUST), Award No. KUK-C1-013-04.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorPeppin, Stephen S. L.en
dc.date.accessioned2016-02-25T13:51:39Zen
dc.date.available2016-02-25T13:51:39Zen
dc.date.issued2009-01en
dc.identifier.issn0340-0204en
dc.identifier.issn1437-4358en
dc.identifier.doi10.1515/JNETDY.2009.018en
dc.identifier.urihttp://hdl.handle.net/10754/599037en
dc.description.abstractDiffusion and permeation are discussed within the context of irreversible thermodynamics. A new expression for the generalized Stokes-Einstein equation is obtained which links the permeability to the diffusivity of a two-component solution and contains the poroelastic Biot-Willis coefficient. The theory is illustrated by predicting the concentration and pressure profiles during the filtration of a protein solution. At low concentrations the proteins diffuse independently while at higher concentrations they form a nearly rigid porous glass through which the fluid permeates. The theoretically determined pressure drop is nonlinear in the diffusion regime and linear in the permeation regime, in quantitative agreement with experimental measurements. © 2009 Walter de Gruyter, Berlin, New York.en
dc.description.sponsorshipThis research was supported by the King Abdullah University of Science and Technology (KAUST), Award No. KUK-C1-013-04.en
dc.publisherWalter de Gruyter GmbHen
dc.titleOn Diffusion and Permeationen
dc.typeArticleen
dc.identifier.journalJournal of Non-Equilibrium Thermodynamicsen
dc.contributor.institutionUniversity of Oxford, Oxford, United Kingdomen
kaust.grant.numberKUK-C1-013-04en
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.