Abstract
The final object of this study is to enhance the heat-exchange performance of fin-tube heat exchangers using ionic-wind generated at the surfaces of each fin. In this study, an ionic-wind generator consists of a glass plate, a discharge electrode, a bias electrode, and a ground electrode on the back of the glass plate. Dielectric barrier discharge (DBD) occurs by applying AC high voltage of around 14 kHz between the discharge electrode and the ground electrode. The AC waveform has larger peaks for positive polarity than for negative. Ionic wind was generated only in case where negative bias voltages were applied to the bias electrode. This showed that mainly positive ionic species were generated by DBD.
