Abstract
The shape and form of twin-screw extruder elements determine the physical conditions under which the material is processed. In this work, we investigated the pressure build-up, power consumption, dissipation and distributive mixing behavior of fully filled extruder elements via Smoothed Particle Hydrodynamics simulations, covering a wide range of conveying, kneading and mixing elements used in the ZSE12, ZSE18 and ZSE27 pharma extrusion equipment series. As a result, a comprehensive parameter catalogue of characteristic values was computed. These parameters allow studying the pressure build-up, power consumption and mixing behavior for all elements under various operating conditions. Additionally, we show novel process maps which support optimizing the length of a process zone. Properly used, the catalogue can assist a rational selection of screw elements during process design and transfer.
Original language | English |
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Article number | 116202 |
Journal | Chemical Engineering Science |
Volume | 230 |
DOIs | |
Publication status | Published - 2 Feb 2021 |
Keywords
- Twin-screw extruder elements
- Extrusion
- SPH
- Scale-up
ASJC Scopus subject areas
- Chemical Engineering(all)
- Chemistry(all)
- Industrial and Manufacturing Engineering