Evaluation of the parameters influencing electrostatic charging of powder in a pipe flow

被引：36

作者：

Grosshans, Holger ^{[1
]}

Papalexandris, Miltiadis V. ^{[1
]}

机构：

[1] Catholic Univ Louvain, Inst Mech Mat & Civil Engn, B-1348 Louvain, Belgium

来源：

JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES | 2016年 / 43卷

关键词：

Electrostatic charging; Particulate flows; Multiphase flows; Explosion safety; Large eddy simulation; Design of Experiments; PNEUMATIC TRANSPORT; IGNITION; ELECTRIFICATION; IONIZER; SURFACE;

D O I：

10.1016/j.jlp.2016.05.002

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Triboelectric charging of powders during pneumatic transport can lead to hazardous spark discharges. In this study, the charging process was studied numerically by means of large eddy simulations. A range of design parameters was then analyzed statistically applying the Design of Experiments methodology. It is shown that the electric charge of the powder can be significantly decreased by reducing the conveying air velocity. Furthermore, the usage of pipes of a larger diameter and the application of higher solid mass flow rates also reduce the powder charge. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：83 / 91

页数：9

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