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Digital image processing method for measuring the residence time distribution in a plasticating extruder
Author(s) -
Bi Chao,
Jiang Bo,
Li Ao
Publication year - 2007
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.20793
Subject(s) - residence time distribution , plastics extrusion , process engineering , line (geometry) , residence time (fluid dynamics) , materials science , measure (data warehouse) , correctness , image processing , computer science , mechanical engineering , composite material , image (mathematics) , engineering , algorithm , artificial intelligence , mathematics , flow (mathematics) , data mining , geometry , geotechnical engineering
In the present work, a digital image processing (DIP) method was developed to measure the residence time distribution (RTD) in a plasticating extruder. The DIP method is off‐line, but it consumes less time and yields more data than the traditional off‐line ones, and it avoids the expensive probes and data acquisition systems that are necessary in the on‐line and in‐line measurements. The correctness of the DIP method was validated by a comparative experiment using silica powder as the tracer. A locally made Buss Kneader equipped with a gear pump system was used herein. The effects of the operating conditions on the RTD in this equipment were also studied. Furthermore, the relationship between the mean residence time and the operating conditions was analyzed. POLYM. ENG. SCI., 47:1108–1113, 2007. © 2007 Society of Plastics Engineers