A study of residence time distribution in co-rotating twin-screw extruders. Part II: experimental validation.: An article from: Polymer Engineering and Science
Book Details
PublisherSociety of Plastics Engineers, Inc.
ISBN / ASINB0008IRRUK
ISBN-13978B0008IRRU8
AvailabilityAvailable for download now
Sales Rank13,803,987
MarketplaceUnited States 🇺🇸
Description
This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on December 1, 2003. The length of the article is 5658 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the author: In the first part of this paper, a new approach to model the residence time distribution (RTD) in a co-rotating twin-screw extruder was proposed. It consists of coupling a continuum mechanics approach with a chemical engineering one, yielding an RTD curve without any fitting parameter. However, the choice of ideal reactors that depict the behavior of each particular profile is not evident. In this second part, we present an experimental study based on two types of extruder (Leistritz 30-34 and Clextral BC45), different screw profiles and two measurement techniques (off-line and in-line). Global, partial and local RTD curves were obtained, both experimentally and by means of a deconvolution technique. This series of experiments permitted the definition of the best association between ideal reactors and screw elements. Using this association, a comparison has been made between experimental results and theoretical calculations. A good agreement was generally obtained in terms of the RTD shape, delay time, mean residence time and variance.
Citation Details
Title: A study of residence time distribution in co-rotating twin-screw extruders. Part II: experimental validation.
Author: A. Poulesquen
Publication:Polymer Engineering and Science (Refereed)
Date: December 1, 2003
Publisher: Society of Plastics Engineers, Inc.
Volume: 43 Issue: 12 Page: 1849(14)
Distributed by Thomson Gale
From the author: In the first part of this paper, a new approach to model the residence time distribution (RTD) in a co-rotating twin-screw extruder was proposed. It consists of coupling a continuum mechanics approach with a chemical engineering one, yielding an RTD curve without any fitting parameter. However, the choice of ideal reactors that depict the behavior of each particular profile is not evident. In this second part, we present an experimental study based on two types of extruder (Leistritz 30-34 and Clextral BC45), different screw profiles and two measurement techniques (off-line and in-line). Global, partial and local RTD curves were obtained, both experimentally and by means of a deconvolution technique. This series of experiments permitted the definition of the best association between ideal reactors and screw elements. Using this association, a comparison has been made between experimental results and theoretical calculations. A good agreement was generally obtained in terms of the RTD shape, delay time, mean residence time and variance.
Citation Details
Title: A study of residence time distribution in co-rotating twin-screw extruders. Part II: experimental validation.
Author: A. Poulesquen
Publication:Polymer Engineering and Science (Refereed)
Date: December 1, 2003
Publisher: Society of Plastics Engineers, Inc.
Volume: 43 Issue: 12 Page: 1849(14)
Distributed by Thomson Gale
