Global Model for High-Consistency Wood Pulp Suspensions in Corotating Twin Screw Extruders

A novel composite model was proposed for corotating, fully intermeshing twin screw extruders dedicated to the processing of high-consistency wood pulp suspensions. This model builds on plasticating extruder modeling techniques that have been applied to suspension processing applications and accounts for the unique rheology of a fibrous suspension and changes in consistency (i.e., composition) through liquid absorption and expression. The model …