中国科学院大学学报2017，Vol.34Issue(2)：172-178,7.DOI:10.7523/j.issn.2095-6134.2017.02.008
温度对静电除尘器内颗粒受力影响的数值模拟
Numerical simulation of temperature effect on particle forces in electrostatic precipitators
摘要
Abstract
A computational fluid dynamics (CFD) model is proposed to describe the wire-plate electrostatic precipitator (ESP) in high temperature condition.In this model,the complex interactions among the electric field,temperature field,fluid dynamics,and the particulate flow are taken into account.The finite volume method is used to solve the electric field and the Euler-Lagrange model is used to describe particle-laden flows.The influences of high temperature on particle characteristics in ESP are investigated in the current simulation.Numerical results show that Coulomb force decreases while the Saffman lift force,Brownian force,and drag force increase with the temperature.Besides,the increasing rate of drag force is faster than that of Coulomb force,which may cause the reduced efficiencies at high temperature.关键词
温度/静电除尘/电流体动力/颗粒受力Key words
temperature/electrostatic precipitation/electro-hydrodynamic/particle force分类
能源科技引用本文复制引用
毕文剑,李艳,罗坤,樊建人..温度对静电除尘器内颗粒受力影响的数值模拟[J].中国科学院大学学报,2017,34(2):172-178,7.基金项目
环保部公益项目(201409008-4)和浙江省社会发展重大专项(2014C03025)资助 （201409008-4）
