| Title |
Ozone Production Characteristics of the DBD Discharge the Electrode Shape at the Same Electrode surface area |
| Authors |
Young-Hak Kwon ; Hyunmi Park ; HyunGig Song ; ?Won-Zoo Park |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2016.30.2.071 |
| Keywords |
Dielectric Barrier Discharge(DBD) ; Ozonizer ; Cylindrical Inner Electrode ; Effect of Temperature |
| Abstract |
The dielectric barrier discharge (DBD) has low efficiency due to about 70% input power is consumed as thermal energy in the discharge space. However, because of the usage of DBD ozone generator is easier than other methods. The DBD ozone generator has been widely applied for high concentration ozone generation in the industrial application. But, the low-capacity compact DBD ozone generator is not applied so far. Therefore, the DBD ozone generator is necessary to improve ozone production efficiency and reduce the capacity. In this paper, the stainless steel pipe inner electrode was designed with hall type and screw type to improve the ozone production yield. The manufactured two inner electrodes were experimented with normal type for comparison of the discharge characteristics and the ozone generating characteristics. As the experimental results, the discharge current effective value of designed inner electrodes with hall type and screw type are higher than the normal type, due to unequal electric field is formed at the boundary. However, the difference of designed and original electrodes is less than 0.1mA that has no effect on the discharge characteristic. On the other hand, the screw type inner electrode increased higher than original model about 7 times when the flow rate of the oxygen source gas was increased from 0.6ℓ/min to 1.0ℓ/min The reason was assumed by the flow rate of the raw gas through the inner electrode was became fast that has a cooling effect. The designed hall type and screw type inner electrodes have shown good performances in ozone generation and ozone production that better than normal type in the same electrode surface area. |