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Author Xu, Pengfei ♦ Zhang, Bo ♦ He, Jinliang ♦ Chen, Shuiming
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION TECHNOLOGY ♦ AIR ♦ AMPLITUDES ♦ ANIONS ♦ CORONA DISCHARGES ♦ ELECTRODES ♦ HUMIDITY ♦ INTEGRALS ♦ IONIZATION ♦ PULSE RISE TIME ♦ PULSES
Abstract Detailed negative corona discharge characteristics, such as the pulse amplitude, repetition frequency, average corona current, rise time, and half-wave time, are systematically studied under various air humidities with a single artificial defect electrode. The experimental result reveals that the pulse amplitude increases with the increase of air humidity; meanwhile, the repetition frequency deceases as the air humidity increases. Empirical formulae are first established for the pulse amplitude and repetition frequency with the humidity factor taken into consideration. The effective ionization integral is calculated and a positive correlation is found between the integral and the pulse amplitude. Furthermore, a simplified negative-ion cloud model is built up to investigate the mechanism of the humidity's influence on negative corona discharge. Based on the theoretical analyses, the correlation between pulse amplitude, repetition frequency, and air humidity is well explained.
ISSN 1070664X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-09-15
Publisher Place United States
Journal Physics of Plasmas
Volume Number 22
Issue Number 9


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