• 조명전기설비학회논문지
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• 제26권5호
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• pp.85-90
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• 2012

In this paper, it was investigated experimentally that diameter and polarity variation of corona wire electrode affected to ozone generation of the ozone generator using a wire-to-plate type electrode. The change in the diameter(D) of the corona wire electrode has a great effect upon ozone generation, higher influence appears in the positive corona discharge than the negative corona discharge. In the case of D=0.50[mm], maximum ozone generation and power efficiency could be obtained. However, in the case of smaller D than this, the ozone generation and efficiency decreases slowly and in the case of larger D, the ozone generation decreases rapidly. It means performance decline as an ozone generator. Therefore, ozone generation and power efficiency would increase through simple optimization of the corona electrode specification.

• 한국전기전자재료학회논문지
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• 제16권7호
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• pp.634-640
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• 2003

This paper is to be researched into ozone generation character of Bi-Ti-Si type high dielectric yield ceramic catalyst discharge tube. And conditions of basic experiment are the outside diameter of discharge tube : 52 mm, the length of discharge tube : 350 mm, the frequence : 900 Hz, the temperature of cooling water : 25 $^{\circ}C$, quantity of flow : 5, 10, 20 l/min, pressure : 1.2, 1.4, 1.6 atm, and distance of discharge gap : 0.4, 0.6, 0.8 mm. Ozone generation characteristics were measured to consumption power. At quantity of flow : 20 l/min, discharge gap : 0.6 mm, pressure : 1.6, and consumption power : 150 W, Maximum ozone generation efficiency of 175 g/kWh was obtained. Maximum ozone generation efficiency was measured below the flow quantity of 20 l/min at below pressure of 1.6 atm. However, Maximum ozone generation efficiency was measured over the flow quantity of 20 l/min at over pressure of 1.6 atm.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2002년도 하계학술대회 논문집 Vol.3 No.2
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• pp.908-911
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• 2002

Recently deep interests and attraction have been paid on the generation of ozone, which is widely used to remove bed smell and to clear water. In this paper the silent discharge and ozone generation characteristics of various typed discharge chambers were investigated experimentally. Dielectric of $Al_2O_3$ was embedded in the cylindrical type of discharge chamber to improve the ozone generation rate and to stabilize the silent discharge mode of operation. Discharge current and ozone concentration depend strongly on the applied voltage and frequency.

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제48권12호
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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.

• 전기학회논문지
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• 제57권4호
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• pp.648-652
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• 2008

Corona discharge and ozone generation characteristics of a wire-plate plasma reactor, with a biased third electrode, have been investigated with an emphasis on the role of the bias voltage and frequency applied on the third electrode. It was found that the wire-plate plasma reactor, with the biased third electrode, had a switching characteristic on its I-V characteristics for negative and positive discharges, which is very different from that of a conventional wire-plate plasma reactor without the third electrode. As a result, the corona discharge and ozone generation characteristics of the proposed plasma reactor could be controlled by adjusting the bias voltage and frequency of the third electrode. The corona onset and breakdown voltages, and ozone generation and yield, were increased compared with those of without the third electrode. These, however, reveal the effectiveness of the biased third electrode.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2000년도 학술대회 논문집 전문대학교육위원
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• pp.22-25
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• 2000

Time dependent ozone generation characteristics of some oxide layers grown by ozone on the surface of corona discharge wires have been investigated experimentally in air ambience. Four wires of stainless steel, iron, silver and copper were used for the corona discharge wire of an ozone generator. And the effect of the metal oxide layers on ozone generation was studied and the contamination morphology of each layers was characterized. With the SEM images and the EDS spectra, it was found that all the surface of the corona wire were oxidized by the generated ozone and contaminated by airborne particles through the gradient force. As a result, the morphology and the electrical property of metal oxide layer grown on corona wire surface influenced on ozone generation characteristics i.e. discharge mechanisms.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1994년도 하계학술대회 논문집 C
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• pp.1625-1627
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• 1994

A potential to effective ozone generation for 4 kinds of gap, a hole-to-plate gap, a hole-to-hole gap, a hole-to-rod gap and a plate-to-plate gap in tap water has been investigated. It is found that the hole gaps indicated higher ozone generation compared to that of the plate-to-plate gap. As a result, the hole gaps could be an effective means to generate ozone in water by utilizing both of one generation mechanisms of the discharge and the electrolysis.

• 한국항해항만학회지
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• 제34권3호
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• pp.205-211
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• 2010

밸러스트수 처리를 위한 Plasma Gun의 전기적 특성과 오존 생성에 미치는 주요 운전변수들의 영향에 관해 실험실 규모 연구를 수행하였다. 방전개시전압보다 높은 전압이 인가되면 방전이 시작되고 오존이 생성되었으며 전압이 증가함에 따라 기체로 전달되는 에너지 및 오존 농도가 거의 선형적으로 증가하였다. 오존 생성 측면에서 최적의 에너지 효율성을 얻을 수 있는 전극간 거리가 존재하였으며 실험된 장치에서는 1.95 mm의 전극간 거리에서 최적 효율이 얻어졌다. 전기에너지 특성에 미치는 내부전극 재질의 영향은 무시할만한 수준이었으나 내부전극의 전기전도도와 열전도도 차이가 오존 생성에 큰 영향을 미치는 것으로 나타났다. 일정한 Plasma Gun 구조에서 오존 생성은 기체로 전달되는 에너지밀도에 의해 중요한 영향을 받는 것으로 나타났으며 유입되는 기체의 산소함량이 증가할수록 오존 생성이 증가하는 것으로 나타났다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2000년도 하계학술대회 논문집 C
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• pp.2144-2146
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• 2000

In this research, a ozone generation using a combined discharge method, in which a surface and a silent discharges are occur in discharge region simultaneously, is investigated experimentally. On our experiments, the combined discharge was confirmed, and the characteristics of the ozone generation were obtained. In this paper, the typical results about the ozone generation are described.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2000년도 하계학술대회 논문집
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• pp.628-630
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• 2000

Since the concept for the ozone generation using a nonequilibrium electric discharge techniques had been proposed by Siemens, some experimental and theoretical studies on the ozone generation by streamer corona discharge, surface discharge and silent discharge have been performed. In this paper some results on the discharge characteristics of the silent discharge gap with various dielectric materials were reported. Dielectric materials used in this study were pyrex glass, quartz and glass beefs with diameter of 1 mm.