Reference : Moisture profiles determination during convective drying using x-ray microtomography
Scientific journals : Article
Engineering, computing & technology : Chemical engineering
http://hdl.handle.net/2268/5975
Moisture profiles determination during convective drying using x-ray microtomography
English
[fr] Détermination des profils d'humidité par microtomographie à rayons X lors du séchage convectif
Léonard, Angélique mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Opérations physiques unitaires - Département de chimie appliquée >]
Blacher, Silvia mailto [Université de Liège - ULg > Département de Chimique Appliquée > Laboratoire de Génie Chimique > >]
Marchot, Pierre mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Systèmes polyphasiques >]
Pirard, Jean-Paul mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Génie catalytique >]
Crine, Michel mailto [Université de Liège - ULg > Département de chimie appliquée > Génie chimique - Opérations physiques unitaires >]
Feb-2005
Canadian Journal of Chemical Engineering
Canadian Society for Chemical Engineering
83
1
127-131
Yes (verified by ORBi)
International
0008-4034
Ottawa
Canada
[en] moisture profiles ; convective drying ; X-ray microtomography ; sludges ; diffusion coefficient
[en] The knowledge of internal moisture profiles which develop during drying is essential for model validation purposes, but they are difficult to determine experimentally. This paper shows that X-ray microtomography, together with image analysis, provides an accurate, non destructive and easy to use technique to determine moisture profiles. Results reported concern the drying of wastewater sludges whose management is becoming a real environmental challenge. An analysis of the development of moisture gradients at the sample external wall shows an influence of drying operating conditions. Finally, mass diffusion coefficients are estimated from the knowledge of both the moisture gradients and the drying flux.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
http://hdl.handle.net/2268/5975

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