In-line measurement of residence time distribution in a co-rotating twin-screw extruder

The residence time distribution in an intermeshing, co-rotating twin-screw extruder was measured in-line and off-line by stimulus–response technique. FD&C Red 40 was used as the tracer for the study. The die concentration was monitored in-line using a fiber-optic- equipped vis-near Infrared spec...

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Bibliographic Details
Published inFood research international Vol. 36; no. 5; pp. 461 - 467
Main Authors Apruzzese, F., Pato, J., Balke, S.T., Diosady, L.L.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 2003
Elsevier
Subjects
Biological and medical sciences
Food engineering
Food extrusion
Food industries
Fundamental and applied biological sciences. Psychology
General aspects
In-line monitoring
Near infrared and charge coupled device spectrometer
Residence time distribution
Tanks in series model
Residence time distribution
Food extrusion
Near infrared and charge coupled device spectrometer
Tanks in series model
In-line monitoring
Extruder
On line
Residence time
Industrial equipment
Quality control
Distribution
Extrusion
Control method
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Summary:The residence time distribution in an intermeshing, co-rotating twin-screw extruder was measured in-line and off-line by stimulus–response technique. FD&C Red 40 was used as the tracer for the study. The die concentration was monitored in-line using a fiber-optic- equipped vis-near Infrared spectrometer while the color concentration in the off-line samples was measured using a charge coupled device (CCD) spectrometer. The in-line results correlated well with the off-line method. The effect of feed rate, water content and temperature on the residence time distribution were precisely determined and fit by the tanks in series (TIS) model.
ISSN:0963-9969
1873-7145
DOI:10.1016/S0963-9969(02)00193-X