?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=https%3A%2F%2Forgprints.org%2Fid%2Feprint%2F18204%2F&rft.title=A+general+extrudate+bulk+density+model+for+both+twin-screw+and+single-screw+extruder+extrusion+cooking+processes&rft.creator=Cheng%2C+Hongyuan&rft.creator=Friis%2C+Alan&rft.creator=H%C3%B8eg+Hansen%2C+Jonas&rft.creator=Tolderlund+Rasmussen%2C+Hanne&rft.subject=Assessment+of+impacts+and+risks&rft.description=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%2C+wheat%2C+and+oat+%26+wheat+mixture+processing.+A+new+phenomenological+model+is+proposed+to+correlated+extrudate+bulk+density%2C+extrusion+parameters+and+raw+material+changes+based+on+the+experimental+results.+The+average+absolute+deviation+(AAD)+of+the+correlation+is+2.2%25+for+fish+feed+extrusion+in+the+twin-screw+extrusion+process.+For+the+single-screw+extrusion+process%2C+the+correlation+AAD+is+respectively+3.03%25%2C+5.14%25+for+wheat+and+oat+%26+wheat+mixture+extrusion%3B+and+the+correlation+AAD+is+6.6%25+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.&rft.date=2010&rft.type=Working+paper&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=%2Fid%2Feprint%2F18204%2F1%2FA_general_extrudate_bulk_density_model_for_both_tw.pdf&rft.identifier=+++Cheng%2C+Hongyuan%3B+Friis%2C+Alan%3B+H%C3%B8eg+Hansen%2C+Jonas+and+Tolderlund+Rasmussen%2C+Hanne++++(2010)+A+general+extrudate+bulk+density+model+for+both+twin-screw+and+single-screw+extruder+extrusion+cooking+processes.++++Working+paper.+++%5BCompleted%5D+++++