MODELING A TWIN SCREW CO‐ROTATING EXTRUDER1
- 30 January 1985
- journal article
- Published by Wiley in Journal of Food Process Engineering
- Vol. 8 (1) , 1-21
- https://doi.org/10.1111/j.1745-4530.1985.tb00095.x
Abstract
This work desribes the simulation of a twin screw co‐rotating extruder. Based on a uni‐directional analysis, the temperature and pressure profiles within the extruder are predicted from knowledge of feed and extruder characteristics. A non‐Newtonian, non‐isothermal viscosity model is used to describe the materials rheology. the analysis covers an evaluation of conditions within the solid conveying zone, the melt pumping zone and a melt shearing zone achieved by reverse screw elements. the total energy input (both mechanical and through the barrel) is also evaluated. the simulation work has proved satisfactory in the design and optimization of extruder operation.Keywords
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