Computer simulations of triboelectrification of particles and their trajectories in DC electric fields |
Posted on:2016-12-25 | Degree:M.S | Type:Thesis |
University:Southern Illinois University at Carbondale | Candidate:Puliyala, Srivathsa Kumar Reddy | Full Text:PDF |
GTID:2471390017481563 | Subject:Mechanical engineering |
Abstract/Summary: | |
This study aims to gain a fundamental understanding of the physics of triboelectri- cal charging of solid particles and the separation of the charged particles under an exter- nal DC electric field by computer simulations. A condenser model is used to implement charging mechanism and a soft sphere model is used to account for the Hertzian contact mechanics. The governing nondimensional parameters of the problem are identified and a parametric study is performed to investigate their effects on the charging efficiency and separation. The study finds relevance in a host of technologically important processes, such as recycling of plastic wastes, seed cleaning in agricultural industry and separation of coal from impurities in mining. |
Keywords/Search Tags: | Particles |
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