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Understanding the Effect of Extrusio...

Tonner, Troy.

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Understanding the Effect of Extrusion Conditions on Melt Viscosity to Aid in Modeling of a Single Screw Extruder with Internal Restrictions for Scale-up Purposes.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Understanding the Effect of Extrusion Conditions on Melt Viscosity to Aid in Modeling of a Single Screw Extruder with Internal Restrictions for Scale-up Purposes./
Author:	Tonner, Troy.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
Description:	120 p.
Notes:	Source: Masters Abstracts International, Volume: 79-12.
Contained By:	Masters Abstracts International79-12.
Subject:	Bioengineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10810344
ISBN:	9780438020290

Understanding the Effect of Extrusion Conditions on Melt Viscosity to Aid in Modeling of a Single Screw Extruder with Internal Restrictions for Scale-up Purposes.
Tonner, Troy.

Understanding the Effect of Extrusion Conditions on Melt Viscosity to Aid in Modeling of a Single Screw Extruder with Internal Restrictions for Scale-up Purposes. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 120 p.

Source: Masters Abstracts International, Volume: 79-12.

Thesis (M.S.A.B.E.)--Purdue University, 2018.

This item must not be added to any third party search indexes.

A single screw extruder with inner restrictions that is self-heated by friction and viscous dissipation was investigated. The effect of the processing parameters: feed moisture, screw speed, and feed rate on the melt viscosity and die temperature rise were researched using a dual orifice die. The melt viscosity was also measured using an offline capillary rheometer. The offline data was compared to and used to predict the inline viscosity of the melt. Various methods such as multilinear regression and superpositioning were used to model viscosity as a function of the processing parameters. Next, the current analytical model was evaluated using Finite Element Methods (FEM) paired with the Newton-Rhapson Method. FEM was then used to further the current analytical model to consider 2-D flow as well as nonlinear temperature rise along the screw channel. Overall, as the screw speed increased while maintaining a similar degree of screw fill, the melt viscosity decreased and the temperature rise increased. Comparisons to the offline data at higher moistures were made, but not at lower moistures due multiple dependent variables producing nonlinear behavior along with scatter in the data.

ISBN: 9780438020290Subjects--Topical Terms:

657580
Bioengineering.
Subjects--Index Terms:

Extrusion

Understanding the Effect of Extrusion Conditions on Melt Viscosity to Aid in Modeling of a Single Screw Extruder with Internal Restrictions for Scale-up Purposes.
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245 1 0 $a Understanding the Effect of Extrusion Conditions on Melt Viscosity to Aid in Modeling of a Single Screw Extruder with Internal Restrictions for Scale-up Purposes.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2018
300 $a 120 p.
500 $a Source: Masters Abstracts International, Volume: 79-12.
500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisor: Okos, Martin R.
502 $a Thesis (M.S.A.B.E.)--Purdue University, 2018.
506 $a This item must not be added to any third party search indexes.
506 $a This item must not be sold to any third party vendors.
520 $a A single screw extruder with inner restrictions that is self-heated by friction and viscous dissipation was investigated. The effect of the processing parameters: feed moisture, screw speed, and feed rate on the melt viscosity and die temperature rise were researched using a dual orifice die. The melt viscosity was also measured using an offline capillary rheometer. The offline data was compared to and used to predict the inline viscosity of the melt. Various methods such as multilinear regression and superpositioning were used to model viscosity as a function of the processing parameters. Next, the current analytical model was evaluated using Finite Element Methods (FEM) paired with the Newton-Rhapson Method. FEM was then used to further the current analytical model to consider 2-D flow as well as nonlinear temperature rise along the screw channel. Overall, as the screw speed increased while maintaining a similar degree of screw fill, the melt viscosity decreased and the temperature rise increased. Comparisons to the offline data at higher moistures were made, but not at lower moistures due multiple dependent variables producing nonlinear behavior along with scatter in the data.
590 $a School code: 0183.
650 4 $a Bioengineering. $3 657580
650 4 $a Food Science. $3 890841
650 4 $a Chemical engineering. $3 560457
653 $a Extrusion
653 $a Finite element methods
653 $a Modeling
653 $a Rheology
653 $a Starch
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690 $a 0359
690 $a 0542
710 2 $a Purdue University. $b Agricultural and Biological Engineering. $3 1025335
773 0 $t Masters Abstracts International $g 79-12.
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791 $a M.S.A.B.E.
792 $a 2018
793 $a English
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