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Investigation of Flow Rate and Viscous Dissipation in a Single Screw Pump-Extruder

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Published/Copyright: March 1, 2022
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International Polymer Processing
From the journal International Polymer Processing Volume 16 Issue 4

Abstract

The focus of this investigation was to determine the effect of barrel rotation and screw rotation on the flow rate and viscous dissipation inside the screw pump-extruder. The screw pump-extruder was built to allow for barrel rotation and screw rotation independently. A Newtonian fluid, Polypropylene glycol, was chosen as the working fluid. The experimental results can be summarized by noting that the pumping capacity of the device was independent of which element was rotated at constant angular velocity and that barrel rotation generated higher temperature rise than screw rotation for the two screws evaluated. Also this analysis suggested that a large amount of viscous dissipation inside this extruder arises from the clearance flow. A new analytical model was proposed to evaluate the viscous dissipation for screw rotation. Calculations using this new mathematical model provided good agreement with the experimental data for both barrel and screw rotation.

* Mail address: G. A. Campell, Chem. Ing. Dept., Clarkson University, Potsdam, N.Y., 13699, USA

Acknowledgments

We would like to thank Dow Chemical, Becton Dickinson, Eastman Chemical, XALOY and American Leiztritz, 3M, and American National Can for funding part of this research. This work was also supported in part by Center for Advanced Materials Processing at Clarkson University, a center of advanced technology supported by the New York State Science and Technology Foundation.

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Received: 2001-11-09
Accepted: 2001-11-14
Published Online: 2022-03-01
Published in Print: 2022-03-01

© 2001 Walter de Gruyter GmbH, Berlin/Boston, Germany

Articles in the same Issue

  1. Contents
  2. Editorial
  3. Pioneer of Regenerated Cellulose and Reactive Processing Charles Frederick Cross
  4. Mixing and Screw Extrusion
  5. Characterization of Distributive Mixing in Polymer Processing Equipment using Renyi Entropies
  6. Investigation of Flow Rate and Viscous Dissipation in a Single Screw Pump-Extruder
  7. Direct Method for Deconvoluting Two Residence Time Distribution Curves
  8. Process Behavior of Special Mixing Elements in Twin-screw Extruders
  9. Experimental and Theoretical Study of Polymer Melting in a Co-rotating Twin Screw Extruder
  10. Experimental and Theoretical Study on the Performance of an Extruder for Cross-linkable PE
  11. Laminar Fluid Chaotic Mixing in Three-Dimensional Continuous Flow Domains
  12. Film
  13. Morphological Characterization of PE Blown Films by Atomic Force Microscopy
  14. Orientation and Mechanical Properties of Extrusion Cast PA 12 Films in Biaxial Stretching Process
  15. Injection Molding
  16. Simulation Opportunities by a Three-dimensional Calculation of Injection Moulding based on the Finite Element Method
  17. Flow Marks in Injection Molding of PP
  18. Injection Molding of Plastic Plates Combined with Boss Features on Superplastic Zn–22Al Sheet
  19. PPS News
  20. PPS News/Calendar of Future PPS Meetings
  21. Join in PPS-18
  22. Join in PPS-18
  23. Professional News
  24. Professional News
https://doi.org/10.1515/ipp-2001-0003

Articles in the same Issue

  1. Contents
  2. Editorial
  3. Pioneer of Regenerated Cellulose and Reactive Processing Charles Frederick Cross
  4. Mixing and Screw Extrusion
  5. Characterization of Distributive Mixing in Polymer Processing Equipment using Renyi Entropies
  6. Investigation of Flow Rate and Viscous Dissipation in a Single Screw Pump-Extruder
  7. Direct Method for Deconvoluting Two Residence Time Distribution Curves
  8. Process Behavior of Special Mixing Elements in Twin-screw Extruders
  9. Experimental and Theoretical Study of Polymer Melting in a Co-rotating Twin Screw Extruder
  10. Experimental and Theoretical Study on the Performance of an Extruder for Cross-linkable PE
  11. Laminar Fluid Chaotic Mixing in Three-Dimensional Continuous Flow Domains
  12. Film
  13. Morphological Characterization of PE Blown Films by Atomic Force Microscopy
  14. Orientation and Mechanical Properties of Extrusion Cast PA 12 Films in Biaxial Stretching Process
  15. Injection Molding
  16. Simulation Opportunities by a Three-dimensional Calculation of Injection Moulding based on the Finite Element Method
  17. Flow Marks in Injection Molding of PP
  18. Injection Molding of Plastic Plates Combined with Boss Features on Superplastic Zn–22Al Sheet
  19. PPS News
  20. PPS News/Calendar of Future PPS Meetings
  21. Join in PPS-18
  22. Join in PPS-18
  23. Professional News
  24. Professional News
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