Cheng, Hongyuan; Friis, Alan; Høeg Hansen, Jonas and Tolderlund Rasmussen, Hanne (2010) A general extrudate bulk density model for both twin-screw and single-screw extruder extrusion cooking processes. Working paper. [Completed]
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Summary in the original language of the document
Effects of extrusion parameters and raw materials on extrudate expansion are respectively investigated in a twin-screw extruder and a single-screw extruder extrusion cooking experiments for fish feed, wheat, and oat & wheat mixture processing. A new phenomenological model is proposed to correlated extrudate bulk density, extrusion parameters and raw material changes based on the experimental results. The average absolute deviation (AAD) of the correlation is 2.2% for fish feed extrusion in the twin-screw extrusion process. For the single-screw extrusion process, the correlation AAD is respectively 3.03%, 5.14% for wheat and oat & wheat mixture extrusion; and the correlation AAD is 6.6% for raw material change effects. The correlation results demonstrate that the proposed equation can be used to calculate extrudate bulk density for both the twin-screw extruder and the single-screw extruder extrusion cooking processes.
Summary translation
Effekter af extruderings parametre og råmateriale på extrudat ekspansion er undersøgt i henholdsvis i en dobbeltsnekke og en enkeltsnekke ekstruder for fiskefoder, hvede, rug/hvede. Den opstillede model vist sig praktisk brugbar til beregning af ekstrudatdensitet for begge typer ekstrudere.
| EPrint Type: | Working paper |
|---|---|
| Keywords: | extrusion; expansion; model; fish feed; wheat |
| Subjects: | Values, standards and certification > Assessment of impacts and risks |
| Research affiliation: | Denmark > DARCOF III (2005-2010) > ORAQUA - Organic fish production Denmark > DTU - Technical University of Denmark |
| Deposited By: | Jokumsen, Senior Advisory Scientist Alfred |
| ID Code: | 18204 |
| Deposited On: | 13 Jan 2011 14:42 |
| Last Modified: | 14 Mar 2022 12:58 |
| Document Language: | English |
| Status: | Unpublished |
| Refereed: | Not peer-reviewed |
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