期刊
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
卷 39, 期 2, 页码 362-367出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIA.2003.808955
关键词
boundary-element method; charged particles; computational electrostatics; corona discharge; electrostatic processes; unipolar charging
In many electrostatic processes (precipitation of dust, separation of granular mixtures, spraying. of powders)insulating particles are subjected to unipolar charging in the presence of other bodies. The present paper addresses this problem from both a computational and an experimental point of view, with the aim to extend an original numerical method of. unipolar charge computation to the case of two or more particles, relatively close to each other. The charge acquired. by cylinders of various dielectric constants Was evaluated with a computer program based on the boundary element method of field analysis. The experimental setup simulated the charging conditions of millimeter-size calibrated cylinders of polyvinyl chloride in a roll-type electrostatic separator, the unipolar space charge being generated by a wire-type electrode. The experimental results, which were in good agreement with the theoretical predictions, put forward that the relative spacing between the particles changes the value of the saturation charge, an effect, which is stronger for particles of higher dielectric constant. These facts should be taken into account in the design of any electrostatic technology based on the corona charging of granular matter.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据