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Modeling and simulation of drying operation in PVC powder production line: a pneumatic dryer model

Aubin, Antoine and Ansart, Renaud and Hemati, Mehrdji and Lasuye, Thierry and Branly, Marc Modeling and simulation of drying operation in PVC powder production line: a pneumatic dryer model. (2012) In: 18th Symposium in the biennial series of International Drying Symposia Series (IDS2012), 11-15 Nov 2012, Xiamen, China . (Unpublished)

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Official URL: http://innova-xiamen.com/IDS2012.html

Abstract

A one-dimensional steady-state model is developed to simulate drying of PVC powder in a pneumatic dryer. In this model, a two-phase continuum model was used to describe the steady-state flow of a dilute dispersed phase (wet PVC powder) and a continuous phase (humid air) through dryer. The particle scale kinetics was obtained by immersion of a fixed mass of wet PVC’s particles (cake) in a batch dense fluidized bed containing inert hot particles (glass bead). The drying kinetics was described by a shrinking core type model and integrated in pneumatic dryer model. The results show that the inlet temperature is the most important parameter in the operation. The drying rate is controlled by a two-stage process. The first stage corresponds to the surface water evaporation, and the second to the pore water evaporation.

Item Type:Conference or Workshop Item (Paper)
Audience (conference):International conference proceedings
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:
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Deposited By: Antoine AUBIN
Deposited On:16 Apr 2013 10:14

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