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Application of evolutionary algorithms to the definition of the optimal twin‐screw extruder configuration for starch cationization
Author(s) -
Teixeira Cristina,
Covas José A.,
Berzin Françoise,
Vergnes Bruno,
GasparCunha António
Publication year - 2011
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.21801
Subject(s) - materials science , evolutionary algorithm , plastics extrusion , set (abstract data type) , mechanical engineering , computer science , mathematical optimization , algorithm , mathematics , engineering , composite material , programming language
The twin‐screw configuration problem (TSCP) involves defining the location of a set of predefined screw elements of a corotating twin‐screw extruder configuration to optimize different, often conflicting, objectives. A multiobjective optimization methodology based on Evolutionary Algorithms was developed and applied to solve the TSCP. This methodology is used in starch cationization case studies, involving different screw elements and screw lengths. The results obtained, taking into consideration various conflicting objectives, such as minimizing the specific mechanical energy and maximizing output and reaction efficiency, have physical meaning and thus validate the methodology. POLYM. ENG. SCI., 2011. © 2010 Society of Plastics Engineers