期刊
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
卷 20, 期 5, 页码 1720-1726出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TDEI.2013.6633702
关键词
Peek formula; corona inception electric field; electrostatic precipitators; humidity
资金
- Special Funds for Major State Basic Research Projects National 973 Project [2013CB228503]
The effect of humidity on the negative corona discharge of electrostatic precipitators was experimentally and numerically studied. The current-voltage characteristics of a wire-plate electrostatic precipitator was measured over a range of temperatures and relative humidities. The inception voltage and electric field were determined based on the streamer theory. A numerical method was used to study the influence of humidity on the distributions of electric field and charge density in an electrostatic precipitator. The results showed that the inception voltage and electric field decreased with the increase of humidity. The corona current was significantly affected by the humidity. A modified Peek formula was proposed with a correction to the humidity. The corona currents calculated with the modified Peek formula were in acceptable agreement with the experimental results. The distributions of electric field and charge density were affected by the humidity and applied voltage.
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