• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
• /
• v.15 no.3
• /
• pp.25-34
• /
• 2001

In this paper, discharge lamp ozonizer(DLO) of a new discharge type using superposition of gaseous electrical discharge for environment improvement was designed and manufactured. DLO is equipped with 3 electrodes(central ground electrode of discharge lamp type internal high voltage electrode of mesh type and external high voltage electrode of spiral type), and it is composed of double gap(gap between discharge lamp and internal electrode, gap between discharge lamp and external electrode). Internal and external electrodes are respectively applied AC high voltage which has 180[$^{\circ}$] phase difference. Ozone is generated by overlaying of each silent discharge which is respectively came from two gaps. At the moment discharge characteristics and ozone generation characteristics of DLO were investigated in accordance with quantity of supplied gas, discharge power and the number of DLO. When ozone generated by DLO was in contact with NO gas, removal characteristics was excellent, so it confirmed that DLO could be used as air environment improvement facility.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
• /
• v.15 no.5
• /
• pp.46-54
• /
• 2001

In this paper, a co-axial cylinder type ozonizer using silent discharge applying radio frequency voltage known as an ozone generation was designed and fabricated. A cooling system was installed to investigate the characteristics of ozone generation in accordance with temperature change of the supplied gas known as an important factor. The characteristics of ozone generation were investigated in accordance with the change of cooling temperature.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
• /
• 2002.07b
• /
• pp.908-911
• /
• 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.

• The Transactions of the Korean Institute of Electrical Engineers D
• /
• v.52 no.5
• /
• pp.226-226
• /
• 2003

When an excessive voltage is applied to the discharge gap in ozone generator, the discharge room temperature becomes higher. As is well own, the efficiency of the ozone generation is deteriorated by the excessively hot temperature because of the decomposition reaction. In this paper, the simple small capacity ozone generating controller has been introduced, which provides effective and stable silent discharge characteristics over wide range input power. The proposed power controller has two important advantages, which imply that the production rate of ozone can be controlled linearly according to the delivered power and the surplus energy is recovered to the source. The experimental results are given to verify the performance of the pre proposed controller.

• The Transactions of the Korean Institute of Electrical Engineers C
• /
• v.52 no.5
• /
• pp.226-230
• /
• 2003

When an excessive voltage is applied to the discharge gap in ozone generator, the discharge room temperature becomes higher. As is well own, the efficiency of the ozone generation is deteriorated by the excessively hot temperature because of the decomposition reaction. In this paper, the simple small capacity ozone generating controller has been introduced, which provides effective and stable silent discharge characteristics over wide range input power. The proposed power controller has two important advantages, which imply that the production rate of ozone can be controlled linearly according to the delivered power and the surplus energy is recovered to the source. The experimental results are given to verify the performance of the pre proposed controller.

• Proceedings of the KIEE Conference
• /
• 2003.07c
• /
• pp.1885-1887
• /
• 2003

본 연구에서는 공업용으로 널리 사용되고 있는 오존발생법의 하나인 무성방전법을 응용한 고주파 전압인가에 따른 오존발생기를 설계 제작하여 오존생성의 중요한 인자중 하나인 주파수변화에 따른 오존생성특성을 연구하였다.

• Proceedings of the KIEE Conference
• /
• 2015.07a
• /
• pp.1204-1205
• /
• 2015

본 연구는 38kV급 VCB의 외함에 체결된 부싱의 부분방전 발생 문제를 해결하기 위하여 부싱의 형상에 따른 부분방전 현상을 분석하였다. 부싱에 발생하는 부분방전의 패턴을 분석한 결과 도체나 외함 끝단 등 날카로운 부위에서 발생할 수 있는 코로나 방전 형태로 나타났다. 이를 해결하기 위해 도체와 쉴드링의 형상을 변수로 두고 실험을 진행하였으며 시작품 제작 전 비용과 시간을 최소화하기 위해 Maxwell 2D 프로그램으로 전계해석을 선진행한 뒤 설계에 반영하여 실험하였다. 실험 결과 쉴드링의 크기나 형상보다는 고전압부와의 거리가 부분방전의 크기에 더 큰 영향을 미친다는 것을 알 수 있었고, 도체의 두께를 변화시켰을 때의 부분방전 및 전계집중 변화폭이 가장 컸다.

• Proceedings of the Korea Air Pollution Research Association Conference
• /
• 2002.04a
• /
• pp.191-192
• /
• 2002

여러 가지 대기오염물질들 중 자동차와 발전설비 등에서 주로 배출되는 질소산화물은 주요 대기오염물질로 규제되고 있으며 배출 기준도 점차 강화되고있다. 따라서 질소산화물을 효과적으로 저감하기 위한 공정들이 활발하게 연구되고 있는데, 이중 저온 플라즈마와 촉매를 동시에 이용하는 공정은 여러 가지 장점으로 인하여 최근 들어 많은 연구가 이루어지고 있다. (중략)

• The Transactions of the Korean Institute of Power Electronics
• /
• v.6 no.5
• /
• pp.460-466
• /
• 2001

The oxidizing power of ozone is the greatest of all commercially available oxidizers and thus ozone is taking the place of chlorine for water treatment. For energy-effective treatment of water, ozone should be generated in high concentration. A silent glow discharge ozonizer is high effective in industrial aspect and thus is the most widely used. We found that the key parameters associated with the ozone generation rate are the driving voltage of the discharger, the discharge rate and the temperature of the ozone generation tube. For an easy control of these parameters, we build a monitoring system with graphical user interface. This system is based on Windows-98 PC, programmed with C++ and LabView.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
• /
• 2001.07a
• /
• pp.783-786
• /
• 2001

Recently deep interests and attractions have been paid on the generation of ozone, which is widely used to remove bad smell and to clear water. Silent discharge is considered as one of the most effective methods to generator ozone. In this paper, silent discharge reactors were made, waich were filled with different dielectric materials, and some silent discharge charactistics were investigated experimantaiiy.