Study of EHD flow generator's efficiencies utilizing pin to single ring and multi-concentric rings electrodes

8th International Conference on Physics and its Applications

Sumariyah^1,3 ; Kusminart^2 ; Hermanto, A.^3 ; Nuswantoro, P.^3

Physics Department, Faculty of Science and Mathematics, Diponegoro University, Indonesia^1

Center for Plasma Research, Faculty of Science and Mathematics, Diponegoro University, Indonesia^2

Physics Department, Faculty of Mathematics and Natural Sciences, Gadjah Mada University, Indonesia^3

关键词: Concentric rings;    Corona discharges;    Electric field lines;    Electrical power;    Maximum Efficiency;    Negative polarity;    Positive polarity;    Strong electric fields;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/776/1/012100/pdf
DOI  :  10.1088/1742-6596/776/1/012100

来源: IOP

【 摘 要 】

EHD flow or ionic wind yield corona discharge is a stream coming from the ionized gas. EHD is generated by a strong electric field and its direction follows the electric field lines. In this study, the efficiency of the EHD flow generators utilizing pin-multi concentric rings electrodes (P-MRE) and the EHD pin-single ring electrode (P-SRE) have been measured. The comparison of efficiencies two types of the generator has been done. EHD flow was generated by using a high-voltage DC 0-10 KV on the electrode pin with a positive polarity and electrode ring/ multi-concentric rings of negative polarity. The efficiency was calculated by comparison between the mechanical power of flow to the electrical power that consumed. We obtained that the maximum efficiency of EHD flow generator utilizing pin-multi concentric rings electrodes was 0.54% and the maximum efficiency of EHD flow generator utilizing a pin-single ring electrode was 0.23%. Efficiency of EHD with P-MRE 2.34 times Efficiency of EHD with P-SRE.