• The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.13 no.2
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• pp.203-203
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• 1999

In this paper, high concentration·yield multi-discharge type ozonizer( MDO ) of new discharge type using superposed silent discharge was designed and manufactured. MDO can be consisted with 3 kind of superposed silent discharge type ozonizer( SDO ) in accordance with power supply method that supplying power, which has 180[°] phase difference, to 3 electrodes and double gap. At the moment discharge characteristics and ozone generation characteristics of each SDO were investigated in accordance with quantify of supplied gas, the number of SDO, and the shapes of each SDO. In result ozone generation characteristics of 17185[ppm] and 783[g/kWh] were obtained, and whorl ozone of 17185[ppm] was in contact with dyeing water waste decolonization characteristics was excellent, so it confirmed that MDO could be used as water environment improvement facility.

• The Transactions of the Korean Institute of Electrical Engineers C
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• v.48 no.12
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• pp.791-797
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• 1999

Recently the ozone generation system is well used for cleaning the contaminated water by using the strong oxidization effects of ozone. In this paper the concentration, yield and generation quantity of the ozone by the Surface-Silent Discharge According to the Length of Coaxial Electrode is described. The electrodes composed of 3 electrodes-2 gaps are coaxial type and the ozone generation tube were designed and fabricated from the point of view of the energy efficiency, stability and easy control. To investigate the ozone generation dependency on electrode length, a few discharge tubes with different lengths were fabricated. The experimental equipments were provided with cooling system and dehumidifier for the many testing conditions. The main results show that the concentration, yield and generation quantity of ozone are improved by decreasing gas temperatures and increasing electrode lengths.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 2004.05a
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• pp.308-312
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• 2004

In this paper, a silent discharge type ozonizer has been designed and fabricated for environment improvement. After that discharge and ozone generation characteristics in accordance with frequency of power supply and input voltage were investigated Consumed discharge un of silent discharge type ozonizer was calculated by computer program designed in "Sigma Hot 2000" program. The data needed for calculation was stored as ASCII file type from oscilloscope.

• Proceedings of the KIEE Conference
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• 2002.07c
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• pp.1763-1765
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• 2002

A silent discharge type ozone generator using a water surface as an electrode has been proposed and investigated experimentally. A water surface has many Taylor cones when the ac voltage is applied on its surface, which increase the discharge surface greatly. In this paper, it was studied about the effect of the water conductivity. As increasing the water conductivity, the amount of generated ozone was increased and the silent discharge on the water surface took place steadily and calmly.

• Proceedings of the KIEE Conference
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• 2000.11c
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• pp.562-564
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• 2000

The optimization of electrode geometry is the most important technology for producing the ozone with high concentration and efficiency. An optimization method for a discharge gap, an air cleaner equipment, voltage apply device, pressure and air flow quantity. In our experiments, the high frequency power were applied to the discharge gap with 23-1G(Silent Discharge). The ozone characteristics was measured with air as a supplied gas, which can be used as basic data for the development of small size ozone generator.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.14 no.2
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• pp.68-74
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• 2000

In this paper the concentration, yield and generation quantity of the ozone by the superposition discharge according to the coaxial electrodes geometry is described. In order to improve the ozone generation, a new type of ozonizer is proposed, where a silent discharge and a surface discharge are generated in the separated discharge spaces at the same time. To investigate the ozone generation dependency on electrode geometry, a few discharge tubes with different geometry were fabricated. In our experiment, the 60[Hz] one phase voltage is applied to the discharge tube which has three electrodes. And three kinds of discharges, two silent discharges and a surface discharge are superposed in the same space of the ozonizer. As a result, the followings are obvious. When two kinds of discharges are superposed under the condition using 3 electrode-3gap discharge tube, the maximum ozone efficiency is obtained.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.28 no.5
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• pp.76-81
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• 2014

The ozone generation is commonly made with silent discharge method using quartz glass dielectric. In this paper, using $Al_2O_3$ dielectric to instead of the traditional quartz glass dielectric to improve the system efficiency is presented. The dielectric was manufactured as tube shape (Internal diameter${\times}$ Outside diameter: $11{\times}15mm$) using 99% $Al_2O_3$ ceramic. The characteristics of dielectric discharge and ozone generation were studied of experiments with variation of discharge power, discharge electrode space and rate of flow for supplied gas ($O_2$/Air). As the experimental results, in the same discharge space, the ozone concentration continuously increased with input power increasing, and ozone yield increased until saturation happened. Also, the expended power increased with discharge space extended due to discharge power increased. In additional, the ozone concentration of oxygen ozone was higher than air that was observed when using oxygen ozone in proposed experiments.

• The Transactions of the Korean Institute of Electrical Engineers C
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• v.50 no.4
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• pp.169-175
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• 2001

Ozone has been widely applied to many industrial fields because of its strong oxidation power, Therefore, the studies have been carried out for the methods on an effective and high concentration ozone generation. The silent or surface discharge type ozone generators have been mainly used for high concentration ozone generation in many fields of applications. But these two types of ozone generators have shortcomings to be improved. In this study, the ozone generator which improved the shortcomings of above ozone generators was proposed and fabricated for the high concentration ozone generation. And the proposed ozone generator could generate the surface and barrier discharge simultaneously. For this purpose, a mesh type discharge electrode was proposed and studied as a function of the widths output maximum ozone concentration of 2.96[vol%] was obtained at 5.6[kV], 830[mA], for 0.3[mm] width and 0.8[mm] vacancy of the mesh electrode and gap spacing of 0.65[mm] respectively.

• Proceedings of the KIPE Conference
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• 2001.10a
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• pp.89-92
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• 2001

Silent gas discharge method has been widely applied for ozone production, ultraviolet light and UV laser generation. Since ozone and ultraviolet applications have tendency to spread widely in industry, the development of efficient and low-cost power supply for such systems is a task of great impotency. This paper introduces high-frequency inverter type mode power supply designed for ozone generation tube and ultraviolet generation excimer lamp and considerations on this inverter and pulse density modulation control strategy applied in it.

• Journal of Power Electronics
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• v.2 no.3
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• pp.206-211
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• 2002

Silent gas discharge method has been widely applied fur ozone production, ultraviolet light and UV laser generation. Since ozone and ultraviolet applications have tendency to spread widely in industry, the development of efficient and low - cost power supply for such systems is an important task at present. This paper introduces high-frequency inverter type mode power supply designed fur ozone generation tube and ultraviolet generation excimer lamp and considerations on the design of the inverter and pulse density modulation control strategy applied in it.