Modeling Fully Intermeshing Co-Rotating Twin-Screw Extruder Kneading Blocks: Part B. Power Consumption and Viscous Dissipation
Sprache des Vortragstitels:
Englisch
Original Tagungtitel:
ANTEC 2021 Classic
Sprache des Tagungstitel:
Englisch
Original Kurzfassung:
Modeling twin-screw extrusion is commonly based on significant geometric simplifications such as the representation of the flow domain as flat channels. Furthermore, the prediction of the conveying characteristics and power demand of kneading blocks is typically based on their approximation as conveying elements. Considering the accurate flow geometry of fully intermeshing co-rotating twin-screw extrusion kneading blocks we analyzed the power characteristics by means of three-dimensional numerical simulations for Newtonian flow. Therefor we first conducted a dimensional analysis to identify the dimensionless characteristic influencing parameters. Next, we derived novel dimensionless power parameters and then conducted a parametric design study. Our proposed power parameters are capable to simultaneously cover conveying and non-conveying screw elements. The results provide new insights in the power characteristics of kneading blocks and are fundamental for screw design, screw simulation, and scale-up. In Part A. of this work we focused on the conveying parameters.
Sprache der Kurzfassung:
Englisch
Vortragstyp:
Vortrag auf einer Tagung (referiert)
Vortragsdatum:
17.05.2021
Vortragsort:
Österreich
Details zum Vortragsort:
Online-Konferenz aufgrund Covid19 (geplant in USA)