Wen Tsrong-Yi, Su Jiann-Lin
Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taiwan.
High Speed 3D Printing Research Center, National Taiwan University of Science and Technology, Taiwan.
Heliyon. 2020 Feb 19;6(2):e03334. doi: 10.1016/j.heliyon.2020.e03334. eCollection 2020 Feb.
Electrostatic precipitator (ESP) is an electrohydrodynamic-based air filter that charges particles based on corona discharge and collects particles by induced electrostatic forces. Inducing corona discharge requires strong electric fields that, however, bring reliability issues because of oxidation. This paper presents the characteristics of an ESP that uses the cylindrical corona electrodes whose longitudinal axis is perpendicular to the surface of the ground electrode. The characteristics include the current-voltage curve, the surface oxidation of the cylindrical corona electrodes, and the element analysis. The characteristics are presented with respect to the pitch and diameter of the cylindrical corona electrodes. The results show that the characteristics mentioned above can correlate to the electric fields around the cylindrical corona electrodes. Stronger electric field around the cylindrical corona electrode results in higher collection efficiency, more oxidation on the cylindrical corona electrode, and shorter life of the cylindrical corona electrode.
静电除尘器（ESP）是一种基于电流体动力学的空气过滤器，它基于电晕放电使颗粒带电，并通过感应静电力收集颗粒。产生电晕放电需要强电场，然而，由于氧化作用，这会带来可靠性问题。本文介绍了一种使用纵向轴线垂直于接地电极表面的圆柱形电晕电极的静电除尘器的特性。这些特性包括电流-电压曲线、圆柱形电晕电极的表面氧化以及元素分析。这些特性是针对圆柱形电晕电极的间距和直径给出的。结果表明，上述特性与圆柱形电晕电极周围的电场相关。圆柱形电晕电极周围更强的电场会导致更高的收集效率、圆柱形电晕电极上更多的氧化以及圆柱形电晕电极更短的使用寿命。
