Communications - Scientific Letters of the University of Zilina 2013, 15(11):40-45 | DOI: 10.26552/com.C.2013.2A.40-45

Separation of Plastic Particles in Electrostatic Field Produced by Electrodes of Optimized Shape

Frantisek Mach1, Pavel Kus1, Pavel Karban1, Ivo Dolezel2
1 Faculty of Electrical Engineering, University of West Bohemia, Pilsen, Czech Republic
2 Czech Technical University, Faculty of Electrical Engineering, Prague, Czech Republic

Shape optimization of electrodes for the device for electrostatic separation of triboelectrically charged plastic particles is carried out. The objective function maximizes the efficiency of separation consisting in the highest possible number of particles falling down to the prescribed bins. Electric field in the system is solved numerically, using the fully adaptive higher-order finite element method. The movement of particles in the device influenced by the Coulomb force is determined by means of an adaptive Runge-Kutta-Fehlberg method with a time varying time step. The shape optimization is carried out using a technique based on genetic algorithms. The methodology is illustrated by an example whose results are discussed.

Keywords: charged plastic particles, triboelectric effect, higher-order finite element method, genetic algorithms, adaptivity

Published: July 31, 2013  Show citation

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Mach, F., Kus, P., Karban, P., & Dolezel, I. (2013). Separation of Plastic Particles in Electrostatic Field Produced by Electrodes of Optimized Shape. Communications - Scientific Letters of the University of Zilina, 15(2A), 40-45. doi: 10.26552/com.C.2013.2A.40-45
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