3-D modeling of polymerization in conveying screw element in twin-screw extruder

Linjie Zhu, K. A. Narh, Kun S. Hyun

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations

Abstract

The polymerization of ε-caprolactone in fully intermeshing conveying screw elements of co-rotating twin screw extruders was simulated with Fluent. The effects of the pitch on the element, temperature, flow rate, and screw rotating speed upon the reaction progression were investigated. It was found that the back-flow in the screw element affects the progress of polymerization. The simulation result from 3-D model differs significantly from 1-D model, especially in relation to slow reactions. This is because reaction is very sensitive to temperature change, and the value of heat transfer coefficient at the barrel and screw surface used in 1-D model may not represent the real conditions in extruders.

Original languageEnglish (US)
Pages147-151
Number of pages5
StatePublished - Oct 14 2003
Event61st Annual Technical Conference ANTEC 2003 - Nashville, TN, United States
Duration: May 4 2003May 8 2003

Other

Other61st Annual Technical Conference ANTEC 2003
CountryUnited States
CityNashville, TN
Period5/4/035/8/03

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Polymers and Plastics

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