• Title/Summary/Keyword: Screw Type Electrode

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The Characteristics of the Complex Discharge Type Ozonizer using Applied Voltage of a Inverse-Polarity and a Screw Type Electrode (역극성 전압인가와 나사형 전극을 이용한 복합방전형 오존발생기의 특성)

  • Song, Hyun-Jig
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.25 no.9
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    • pp.80-85
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    • 2011
  • In this paper, complex discharge type ozonizer with a screw type electrode has been designed and manufactured for environmental improvement using low power and high efficency ozoniazer. The complex discharge type ozonizer is equipped with three electrodes{central electrode(CE), internal electrode(IE) and external electrode(EE)}. Ozone of the complex discharge type ozonizer is generated by superposition of silent discharge and surface discharge in discharge space as a screw type CE and IE are respectively applied to AC high voltage of inverse-polarity has $180[^{\circ}]$ phase difference, EE is common electrode. In this time, when oxygen has been used as supplied gas, the maximum values of ozone concentration, ozone generation and ozone yield were obtained as 8,334[ppm], 3,249[mg/h] and 65.3[g/kwh].

Ozone Production Characteristics of the DBD Discharge the Electrode Shape at the Same Electrode surface area (동일한 전극 표면적에서 DBD방전형 내부전극 형상에 따른 오존생성특성 연구)

  • Kwon, Young-Hak;Park, Hyunmi;Song, HyunGig;Park, Won-Zoo
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.30 no.2
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    • pp.71-77
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    • 2016
  • 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 $0.6{\ell}/min$ to $1.0{\ell}/min$ 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.

Collection Characteristics of Electro-Cyclone with Charging Type (하전방식에 따른 전기싸이클론의 집진특성)

  • 여석준
    • Journal of Korean Society for Atmospheric Environment
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    • v.15 no.4
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    • pp.463-473
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    • 1999
  • The main purpose of this study is to investigate the characteristics of precharge electro-cyclone compared to those of innercharge electro-cyclone, experimentally. Especially, the experiment is executed focusing on the improvement of collection efficiency with the charging types including the experimental parameters such as the discharge electrode shapes, applied voltages and gas inlet velocities. Results show that the overall collection efficiency of precharge electro-cyclone is increased over 20% than that of the innercharge type for the same discharge electrode(ø 4 mm, screw rod) in the inlet velocity of 4 m/s, and applied voltage of 30kV. Moreover, the pressure drop of precharge type becomes 10% lower than that of the innercharge type for the inlet velocity of 12 m/s owing to the disturbance of inner vortex flow by the discharge electrode equipped in the center region of cyclone body.

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The Characteristics of Multi Gap Type Ozonizer (다중 간극형 오존발생장치의 특성)

  • 김금영;문경수;전병준;박용권;김상구;김영훈;김영길;이광식
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 1999.11a
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    • pp.145-148
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    • 1999
  • In this paper, multi gap type ozonizer(MGO) has been designed and manufactured. The ozonizer is equipped with three electrodes(central electrode of screw shape, internal electrode and external electrode) of cylinder shape. This paper describes the following two characteristics: $\circled1$ The characteristics of discharge with variation of output voltage of AC H.V source, flux of oxygen supplied gas and discharge voltage. $\circled2$ The characteristics of ozone generation by varying flux and discharge power.

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Discharge and Ozone Characteristics of Multi Discharge Type Ozonizer (다중방전형 오존발생기의 방전 및 오존생성특성)

  • Chun, Byung-Joon;Mun, Kyung-Su;Song, Hyun-Gik;Kim, Keum-Yeung;Lee, Kwang-Sik
    • Proceedings of the KIEE Conference
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    • 1999.11d
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    • pp.1090-1092
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    • 1999
  • In this paper, multi discharge type ozonizer has been designed and manufactured. The of ozonizer is equipped with three electrodes(central electrode of screw shape, internal electrode and external electrode). This paper describes the following two characteristics: (1) The characteristics of discharge with variation of output voltage of AC H.V source, flow rate of oxygen supplied gas and discharge voltage. (2) The characteristics of ozone generation by varying flow rate and discharge power.

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The Characteristics of Showering Discharge Type Ozonizer (Showering Discharge형 오존발생장치의 특성)

  • Kim, Keum-Yeung;Mun, Kyung-Su;Song, Hyun-Jig;Lee, Kwang-Sik;Lee, Dong-In;Jeon, Young-Ju
    • Proceedings of the KIEE Conference
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    • 1999.07e
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    • pp.2248-2250
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    • 1999
  • In this paper, showering discharge type ozonizer has been designed and manufactured. The ozonizer is equipped with three electrodes(central electrode of screw shape, internal electrode and external electrode) of cylinder shape. This paper describes the following two characteristics: (1) The characteristics of discharge with variation of output voltage of AC H.V source, flux of oxygen supplied gas and discharge voltage. (2) The characteristics of ozone generation by varying flux and discharge power.

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