Removing submicron particles in the size range from 0.1 to 1.0 µm from gas streams is difficult because they cannot be efficiently captured neither through inertial separation nor by diffusion utilized in air pollution control devices. Electrostatic agglomeration is an effective and practical method for improving the removal efficiency of fine particulate matters. For optimizing the performance of electrostatic agglomerators, in addition to the intensity and frequency of an alternating electric field and the particle residence time, an electrostatic aerosol particle agglomerator was designed and established to experimentally evaluate the influence of particle charges on its performance in this study. The results demonstrate that the performance of the electrostatic aerosol agglomerator can be greatly improved in terms of increasing the particle charges from 9 to 19 (e⁻/particle). Combined with the low frequency of an AC electric field, the agglomeration efficiency can be further enhanced. The highest agglomeration efficiency of 40.2% is achieved in the submicron size range at AC frequency of 45 Hz. Furthermore, the oscillating distance (cm/Hz) is proposed and estimated for correlating the agglomeration efficiency under various testing conditions. It was found that the agglomeration efficiency can be described by a simple power-law equation using this parameter.

从气流中除去尺寸范围从0.1到1.0 µm的亚微米颗粒是困难的，因为它们既不能通过惯性分离也不能通过空气污染控制装置中利用的扩散而有效地捕获。静电附聚是提高细颗粒物去除效率的有效方法。为了优化静电团聚器的性能，除交流电场的强度和频率以及粒子的停留时间外，还设计并建立了一种静电气溶胶粒子团聚器，以通过实验评估粒子电荷对其性能的影响。^- /粒子）。结合交流电场的低频，可以进一步提高团聚效率。在交流频率为45 Hz的亚微米尺寸范围内，可获得最高40.2％的团聚效率。此外，提出并估计了振荡距离（cm / Hz），以关联各种测试条件下的团聚效率。发现使用该参数可以通过简单的幂律方程描述集聚效率。