SCREW CONFIGURATION EFFECTS ON RESIDENCE TIME DISTRIBUTION AND MIXING IN TWIN-SCREW EXTRUDERS DURING EXTRUSION OF RICE FLOUR |
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| Authors: | AKHILESH GAUTAM GOUR S. CHOUDHURY |
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| Affiliation: | Fishery Industrial Technology Center, School of Fisheries and Ocean Sciences University of Alaska Fairbanks 118 Trident Way Kodiak, AK 99615 |
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| Abstract: | Screw configuration effects on residence time distribution and mixing were investigated during twin-screw extrusion of rice flour. The type, length, and position of mixing elements, and spacing between two elements significantly affected residence time distribution and mixing. Mean residence time (tmean) and extent of mixing were lower for screw profiles with KB than those with RSE. A systematic increase in tmean was observed as the mixing elements were moved farther away from the die, with longer elements, and with increased spacing between two elements. |
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