Click on “Download PDF” for the PDF version or on the title for the HTML version. If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options. PROCESS VARIABLES AFFECTING RESIDENCE TIME DISTRIBUTIONS OF CEREALS IN AN INTERMESHING, COUNTER-ROTATING TWIN-SCREW EXTRUDERPublished by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org Citation: Transactions of the ASAE. 33(6): 1971-1978. (doi: 10.13031/2013.31566) @1990Authors: X. Yang, D. L. Williams Keywords: J. K. Lin, D. J. Armstrong The effect of process variables on the residence time distributions of cereals in an intermeshing counter-rotating twin-screw extmder was measured using a red dye tracer. The tracer concentration was determined following the method of Bounie (1988) with some modifications. Among the extrusion variables studied, changes in feed moisture, barrel temperature, and screw speed affected the residence time. The flow behavior was near plug flow. None of the extrusion variables had any significant effect on the degree of fill and the degree of backmixing in the extruder. (Download PDF) (Export to EndNotes)
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