Chenghang Zheng, Qianyun Chang, Quanyang Lu, Zhengda Yang, Xiang Gao , Kefa Cen

  • State Key Laboratory of Clean Energy Utilization, State Environmental Protection Center for Coal-Fired Air Pollution Control, Zhejiang University, Hangzhou, China

Received: July 19, 2016
Revised: October 28, 2016
Accepted: October 29, 2016
Download Citation: ||  

  • Download: PDF

Cite this article:
Zheng, C., Chang, Q., Lu, Q., Yang, Z., Gao, X. and Cen, K. (2016). Developments in Unipolar Charging of Airborne Particles: Theories, Simulations and Measurements. Aerosol Air Qual. Res. 16: 3037-3054.


  • A summary of unipolar particle charging models in all regimes has been presented.

  • Numerical techniques and experimental results on unipolar charging have been summarized.

  • Recent developments in the design of unipolar chargers have been overviewed.



Charging of airborne particle is an important process in both scientific studies and industrial applications, of which the unipolar charging takes up the major part due to higher charging efficiency. In order to understand the charging mechanism of airborne particles, accordingly to predict the efficiency of unipolar chargers, different theoretical models have been proposed and investigated in all regimes. Numerical techniques have been also adopted by researchers to analyze the charging process of airborne particles and thus to model the unipolar chargers. On the other hand, with the advent and application of various measuring techniques, the electric charges measurement of airborne particles was made possible for researchers. In this work, we mainly present a summary of these models, numerical techniques and experimental results on unipolar charging in all regimes, as well as the recent developments in the design of unipolar chargers, trying to briefly overview the development in this research field.

Keywords: Airborne particle; Unipolar charging; Theoretical models; Numerical simulations; Charger design

Don't forget to share this article 


Subscribe to our Newsletter 

Aerosol and Air Quality Research has published over 2,000 peer-reviewed articles. Enter your email address to receive latest updates and research articles to your inbox every second week.

Latest coronavirus research from Aerosol and Air Quality Research

2018 Impact Factor: 2.735

5-Year Impact Factor: 2.827

SCImago Journal & Country Rank

Aerosol and Air Quality Research (AAQR) is an independently-run non-profit journal, promotes submissions of high-quality research, and strives to be one of the leading aerosol and air quality open-access journals in the world.