Reference : Convective drying of wastewater sludges: Influence of air temperature, superficial ve...
Scientific journals : Article
Engineering, computing & technology : Mechanical engineering
Engineering, computing & technology : Chemical engineering
http://hdl.handle.net/2268/5500
Convective drying of wastewater sludges: Influence of air temperature, superficial velocity, and humidity on the kinetics
English
[fr] Séchage convectif de boues d'épuration : influence de la température, de la vitesse superficielle et de l'humidité de l'air sur la cinétique
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 chimie appliquée > Labo 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 >]
2005
Drying Technology
Taylor & Francis Inc
23
8
1667-1679
Yes (verified by ORBi)
International
0737-3937
Philadelphia
[en] convective drying ; sludge ; transfer coefficients ; kinetics ; evaporation capacity
[en] The influence of air temperature, velocity, and humidity during convective drying of two different sludges (A and B) is investigated through a 3 3 factorial design. For sludge A, a constant drying flux period is observed, while sludge B is characterized by a long decreasing drying flux phase. A sensitivity analysis shows that temperature is the main operating parameter affecting the drying kinetics. Mass and heat transfer coefficients as well as water evaporation capacities are calculated from drying curves. Transfer coefficients are related to operating conditions through dimensionless relations. For both sludges, a linear relation is found between water evaporation capacity and the maximal measured drying flux.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
http://hdl.handle.net/2268/5500

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