OATAO - Open Archive Toulouse Archive Ouverte Open Access Week

Modeling and simulation of drying operations in PVC powder production line: Experimental and theoretical study of drying kinetics on particle scale

Aubin, Antoine and Ansart, Renaud and Hemati, Mehrdji and Lasuye, Thierry and Branly, Marc Modeling and simulation of drying operations in PVC powder production line: Experimental and theoretical study of drying kinetics on particle scale. (2014) Powder Technology, vol. 255. pp. 120-133. ISSN 0032-5910

[img]
Preview
(Document in English)

PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
1MB

Official URL: http://dx.doi.org/10.1016/j.powtec.2013.08.019

Abstract

An experimental method to determine drying kinetic at a particle scale and a pneumatic dryer model are presented. The particle scale kinetics were obtained by immersion of a fixed mass of wet PVC particles (cake) in a batch dense fluidized bed containing inert hot particles (glass bead). It appears clearly that the PVC drying is controlled by a competition between internal and external transfers. The drying kinetic was described by a shrinking core type model and integrated in a one-dimensional steady-state model simulating a pneumatic dryer. A two-phase continuum model was used to describe the steady-state flow of a diluted dispersed phase (wet PVC powder) and a continuous phase (humid air) through dryer. Themodel takes into account the convective heat,mass and momentumtransfers. The numerical results are compared with industrial experimental data. The results show that the inlet temperature is the most important parameter in the operation.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com/science/article/pii/S0032591013005305
HAL Id:hal-01068120
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > INEOS (SWITZERLAND)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS (FRANCE)
Laboratory name:
Statistics:download
Deposited By: Vincent GERBAUD
Deposited On:17 Oct 2013 14:08

Repository Staff Only: item control page