EHD flow visualization in the wire-plate and barbed plate electrostatic precipitator
EHD flow visualization in the wire-plate and barbed plate electrostatic precipitator
复制标题
线板和刺板静电除尘器中的 EHD 流动可视化
DOI：
10.1109/28.67547
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
P. J. McKinney
中科院分区：
文献类型：
--
作者：
J. Davidson;P. J. McKinney
设计了一种带刺平板放电电极，以减小除尘器流道内的电流不均匀尺寸。因此，电晕诱导的涡旋的规模减小，从而减少了颗粒混合。结果表明，通过对极间流动的可视化，可以从物理上了解电流体流动的结构。流动的静态照片是根据测量的电流-电压关系、湍流强度、积分长度尺度和涡流扩散系数来解释的。结果表明，带刺平板放电电极减小了电感应流的规模。然而，湍流级别增加，因此气体扩散系数略有减小。
A barbed-plate discharge electrode has been designed to reduce the size of current inhomogeneities within a precipitator flow channel. Consequently, the scale of the corona-induced eddies and thus the particle mixing are decreased. It is shown that visualization of the interelectrode flow gives physical insight into the structure of the electrohydrodynamic flow. Still photographs of the flow are interpreted in the light of measured current-voltage relationships, turbulence intensities, integral length scales, and eddy diffusivities. Results confirm that the scale of the electrically induced flow is reduced by the barbed-plate discharge electrode. However, turbulence levels increase, so that gas diffusivities are slightly diminished.<<ETX>>