Effect of liquid films on the drying of porous media

Yiotis, AG; Boudouvis, AG; Stubos, AK; Tsimpanogiannis, IN; Yortsos, YC

dc.contributor.author	Yiotis, AG	en
dc.contributor.author	Boudouvis, AG	en
dc.contributor.author	Stubos, AK	en
dc.contributor.author	Tsimpanogiannis, IN	en
dc.contributor.author	Yortsos, YC	en
dc.date.accessioned	2014-03-01T01:20:17Z
dc.date.available	2014-03-01T01:20:17Z
dc.date.issued	2004	en
dc.identifier.issn	0001-1541	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15881
dc.subject	Diffusion	en
dc.subject	Drying	en
dc.subject	Invasion percolation	en
dc.subject	Liquid films	en
dc.subject	Porous media	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Drying	en
dc.subject.other	Elastic moduli	en
dc.subject.other	Flow of fluids	en
dc.subject.other	Mathematical models	en
dc.subject.other	Phase equilibria	en
dc.subject.other	Thin films	en
dc.subject.other	Viscosity	en
dc.subject.other	Bulk liquid phase	en
dc.subject.other	Liquid films	en
dc.subject.other	Porous materials	en
dc.subject.other	drying	en
dc.subject.other	fluid flow	en
dc.subject.other	liquid film	en
dc.subject.other	porous medium	en
dc.subject.other	viscous flow	en
dc.subject.other	article	en
dc.subject.other	bulk liquid	en
dc.subject.other	capillary flow	en
dc.subject.other	comparative study	en
dc.subject.other	desiccation	en
dc.subject.other	diffusion	en
dc.subject.other	drying	en
dc.subject.other	film	en
dc.subject.other	film flow	en
dc.subject.other	flow	en
dc.subject.other	liquid	en
dc.subject.other	mathematical model	en
dc.subject.other	porosity	en
dc.subject.other	porous medium	en
dc.subject.other	temperature	en
dc.subject.other	temperature gradient	en
dc.subject.other	transport kinetics	en
dc.subject.other	viscosity	en
dc.subject.other	viscous flow	en
dc.title	Effect of liquid films on the drying of porous media	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/aic.10265	en
heal.identifier.secondary	http://dx.doi.org/10.1002/aic.10265	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	The effect is studied of capillarity-driven viscous flow through macroscopic liquid films during the isothermal drying of porous materials. A mathematical model that accounts for viscous flow in a 2-D pore network, through both the liquid films and the bulk liquid phase, is presented. The results are compared with previous works that do not account for the effect of films and with experimental findings by other authors. It is shown that film flow is a major transport mechanism in the drying of porous materials, its effect being dominant when capillarity controls the process, which is the case in typical applications. By contrast, viscous flow in the bulk contributes negligibly. The results are then generalized to drying under an applied temperature gradient. (C) 2004 American Institute of Chemical Engineers.	en
heal.publisher	JOHN WILEY & SONS INC	en
heal.journalName	AIChE Journal	en
dc.identifier.doi	10.1002/aic.10265	en
dc.identifier.isi	ISI:000224782500011	en
dc.identifier.volume	50	en
dc.identifier.issue	11	en
dc.identifier.spage	2721	en
dc.identifier.epage	2737	en