A novel modeling approach to the mixing process in twin-screw extruders

Osaighe Kennedy Amedu, Roger Penlington, Krishna Busawon, Andy Morgan

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)

Abstract

In this paper, a theoretical model for the mixing process in a self-wiping co-rotating twin screw extruder by combination of statistical techniques and mechanistic modelling has been proposed. The approach was to examine the mixing process in the local zones via residence time distribution and the flow dynamics, from which predictive models of the mean residence time and mean time delay were determined. Increase in feed rate at constant screw speed was found to narrow the shape of the residence time distribution curve, reduction in the mean residence time and time delay and increase in the degree of fill. Increase in screw speed at constant feed rate was found to narrow the shape of the residence time distribution curve, decrease in the degree of fill in the extruder and thus an increase in the time delay. Experimental investigation was also done to validate the modeling approach.
Original languageEnglish
DOIs
Publication statusPublished - 15 May 2014
Event29th International Conference of the Polymer-Processing-Society (PPS) - Nuremberg
Duration: 15 May 2014 → …

Conference

Conference29th International Conference of the Polymer-Processing-Society (PPS)
Period15/05/14 → …

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