Determination of the Residence Time Distribution in Twin Screw Extruders via Free Radical Modification of PE

2004 ◽  
Vol 19 (4) ◽  
pp. 335-341 ◽  
Author(s):  
M. K. RazaviAghjeh ◽  
H. Nazockdast ◽  
H. Assempour
Keyword(s):  
Free Radical ◽  
Residence Time ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Twin Screw Extruders ◽  
Twin Screw ◽  
Screw Extruders

A study of residence time distribution in co-rotating twin-screw extruders. Part II: Experimental validation

2003 ◽  
Vol 43 (12) ◽  
pp. 1849-1862 ◽  
Author(s):  
A. Poulesquen ◽  
B. Vergnes ◽  
P. Cassagnau ◽  
A. Michel ◽  
O. S. Carneiro ◽  
...  
Keyword(s):  
Residence Time ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Experimental Validation ◽  
Twin Screw Extruders ◽  
Twin Screw ◽  
Screw Extruders

Residence-time distribution model for twin-screw extruders

AIChE Journal ◽  
1999 ◽  
Vol 45 (12) ◽  
pp. 2541-2549 ◽  
Author(s):  
Jun Gao ◽  
Gregory C. Walsh ◽  
David Bigio ◽  
Robert M. Briber ◽  
Mark D. Wetzel
Keyword(s):  
Residence Time ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Distribution Model ◽  
Twin Screw Extruders ◽  
Twin Screw ◽  
Screw Extruders

An optical system for measuring the residence time distribution in co-rotating twin-screw extruders

2013 ◽  
Vol 33 (8) ◽  
pp. 683-690 ◽  
Author(s):  
Gregor Gerstorfer ◽  
Alexander Lepschi ◽  
Jürgen Miethlinger ◽  
Bernhard G. Zagar
Keyword(s):  
Residence Time ◽  
Time Distribution ◽  
Residence Time Distribution ◽  
Optical Measurement ◽  
Extrusion Process ◽  
Twin Screw Extruders ◽  
Measurement Results ◽  
Twin Screw ◽  
Screw Extruders ◽  
Time Density

Abstract Expanding the general knowledge of the extrusion process in a co-rotating twin-screw extruder requires several parameters to be determined, among them the residence time distribution (RTD). This contribution introduces an optical measurement setup for acquiring the residence time density and distribution function. Based on our measurement results, we derive the influence of the rotational speed of the screws, mass flow rate and of different types of screw configurations on residence time.

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