Heat Transfer in Single and Twin Screw Extruders
-
T. Domschke
und C. Justus
Abstract
The elementary processes during heat transfer in screw extruders are described by a simulation model. The balance equations are solved numerically with a personal computer. By contrast with known computational approaches, consideration is given to the non-stationary processes in the melt layer between the screw flight and the barrel wall. This is guaranteed by incorporating the “pulsating shear” in this layer into the model as a dissipative energy source. The computational results are used to demonstrate, in an exemplary fashion for one extruder series, the influence of all the relevant machine and process parameters on the internal heat transfer.
© 1993, Carl Hanser Verlag, Munich
Artikel in diesem Heft
- Contents
- Contents
- Internal Mixers
- Flow and Heat Transfer Simulation of the Mixing of Polymer Blends Using the Boundary Element Method
- Twin Screw Extrusion, Reactive Processing
- Heat Transfer in Single and Twin Screw Extruders
- Reactive Extrusion of Styrene Polymers
- RIM-pultruded Prepreg for the Injection Molding of Long-fiber Epoxy Composites
- Die Extrusion
- Flow Simulation of a Polymer Melt in a Roller Die
- Potential Applications for Computer-aided Extruder Design
- Molding
- The Gas-assisted Injection Molding Process
- Control Strategies for Cyclic Polymer Processes
- Real-time Neutron Radiography of Injection Mold Filling
- The Role of Process Parameters in Blow Molding and Correlation of 3-D Finite Element Analysis with Experiment
Artikel in diesem Heft
- Contents
- Contents
- Internal Mixers
- Flow and Heat Transfer Simulation of the Mixing of Polymer Blends Using the Boundary Element Method
- Twin Screw Extrusion, Reactive Processing
- Heat Transfer in Single and Twin Screw Extruders
- Reactive Extrusion of Styrene Polymers
- RIM-pultruded Prepreg for the Injection Molding of Long-fiber Epoxy Composites
- Die Extrusion
- Flow Simulation of a Polymer Melt in a Roller Die
- Potential Applications for Computer-aided Extruder Design
- Molding
- The Gas-assisted Injection Molding Process
- Control Strategies for Cyclic Polymer Processes
- Real-time Neutron Radiography of Injection Mold Filling
- The Role of Process Parameters in Blow Molding and Correlation of 3-D Finite Element Analysis with Experiment