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Isothermal transient startup of a starved flow modular co‐rotating twin screw extruder
Author(s) -
Kim Eung Kyu,
White James L.
Publication year - 2000
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.11185
Subject(s) - modular design , materials science , isothermal process , plastics extrusion , flow (mathematics) , transient (computer programming) , isothermal flow , mechanics , volumetric flow rate , mechanical engineering , thermodynamics , composite material , computer science , engineering , physics , open channel flow , operating system
A model for flow start‐up of a Newtonian liquid in an initially empty modular selfwiping co‐rotating twin screw extruder is developed. The changes of length of fill in front of the die and kneading disc block elements and output flow rate with time were predicted for various modular screw configurations. Experiments were also carried out on a laboratory modular machine with windows to verify predictions. Generally, good agreement with the flow analysis was found.