Abstract
Gas pumping using corona wind generator in a square channel has been experimentally examined for three electrode configurations and two operating stages. For the proposed EHD pump, the emitting electrodes are flush mounted on one side of the channel walls so that the air flow produced is similar to that of a wall jet. Three electrode configurations (separately with 1, 3, and 7 emitting electrodes) are investigated for their effectiveness in sustaining and enhancing the volume flow rate as well as reducing the power requirement. Also investigated is the performance of the pump, a measure of the effectiveness in gas pumping, when it is operated in series. The results obtained are compared with those reported in the literature for EHD pumps with electrodes mounted all around the channel walls. It has been found that the performance of the proposed EHD pump is comparable to, if not better than, that of the previous ones while using fewer electrodes. Through the assessment of their performance, present results can provide important implications for practical applications of this technology.
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