• Title/Summary/Keyword: Ozonizer

Search Result 114, Processing Time 0.033 seconds

Discharge and Ozone Generation Characteristics of a Co-axial Cylinder Type Ozonizer in Accordance with Varying Discharge Gap (방전갭 변화에 따른 동축 원통형 오존발생기의 방전특성과 오존생성특성)

  • 이상근;전병준;박용권;이광식;최상태;송현직
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.15 no.6
    • /
    • pp.103-110
    • /
    • 2001
  • Recently, ozone is utilized in various fields and its needs are expanding. Therefore, so many ozone generation methods have been reported in the last year, its main purpose is to get the high ozone concentration and to improve the ozone yield one of them is a Co-axial cylinder-type ozonizer. In this paper, a new ozonizer, which is using radio-frequency power supply, is fabricated to investigate discharge characteristics and ozone generation characteristics in accordance wish variation of grip spacing of electrodes.

  • PDF

Development of Constant Output Power Supply System for Ozonizer (오존발생장치용 정출력 전원장치의 개발)

  • Woo, Jung-In;Woo, Sung-Hoon;Roh, In-Bae;Park, Jee-Ho;Kim, Dong-Wan
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.19 no.7
    • /
    • pp.113-121
    • /
    • 2005
  • In this paper, a constant output power supply system for ozonizer is proposed to remove the noise of ozonizer and control the output of ozonizer using feedback control. The proposed system is based on the rouble control loop such as the outer voltage control loop and inner current control loop. In the proposed system overshoots and oscillations due to the computation time-delay are compensated by explicit incorporation of the time-delay in the current control loop transfer function. The inner current control loop is adopted by an internal model controller. The internal model controller is designed to a second order deadbeat reference-to-output response which means that its response reaches the reference in two sampling time including computational time-delays. The outer voltage control loop employing P-Resonance controller is proposed. The resonance controller has an infinite gain at resonant frequency, and the resonant frequency is set to the fundamental frequency of the reference voltage in this paper. Thus the outer voltage control loop causes no steady state error as regard to both magnitude and phase. The effectiveness of the proposed control system has been verified by the experimental results.

Ozone Generation and NO Gas Removal Characteristics a Silent-Surface Hybrid Discharge Type Ozonizer (무성-연면 복합방전형 오존발생기의 오존생성 및 NO 가스 제거특성)

  • Song, Hyun-Jig;Lee, Kwang-Sik
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.19 no.7
    • /
    • pp.32-38
    • /
    • 2005
  • A hybrid discharge type ozonizer, which is superposed silent and surface discharges, has been designed and manufactured to apply for Nitrogen Oxides(NO) gas removal. The ozonizer consists of three electrodes, and is classified three types of ozonizer by changing applied voltage. Investigation was carried out variance with the flow rate of supplied oxygen gas, discharge power and the sorts of superposed discharge type ozonizer. Moreover, NO(1200[ppm])/$N_2$ gas removal investigation was also conducted to apply for environment improvement field. Two kinds of NO gas removal investigations were conducted. It distinguishes the investigations into NO gas reaction method. According to these studies, maximum removal rate of 100[%] in NO gas was obtained, and 8334[ppm] and 3249[mg/h] of maximum ozone concentration and generation were also obtained respectively.

Characteristics of Fluorescent Discharge Lamp Type Ozonizer for Environment Improvement (환경개선을 위한 형광방전등형 오존발생기의 특성)

  • Park, Yong-Gwon;Lee, Sang-Geun;Jeon, Byeong-Jun;Song, Hyeon-Jik;Lee, Gwang-Sik;Ha, Jang-Ho
    • The Transactions of the Korean Institute of Electrical Engineers C
    • /
    • v.51 no.10
    • /
    • pp.500-505
    • /
    • 2002
  • In this paper, fluorescent discharge type ozonizer has been designed and manufactured. Ozone discharge and generation characteristics have been investigated in accordance with a sort of internal electrodes, output voltage of power supply, air flow rate and discharge power. Air has been used as the supplied gas of the ozonizer In this paper, when disuse fluorescent lamp was used as an internal electrode. Air flow rate was varied from 2[1/min] to 10[1/min]. The maximum ozone concentration and yield were 3495[ppm] and 23.4[g/kWh] respectively at 2[1/min] air flow rate and 35.2[W] input power. Illumination was appeared as 5[lx] within 15[cm] from external electrode. Whorl fluorescent discharge type ozonizer was used, air flow rate was also varied from 2[1/min] to 10[1/min]. At this moment, the maximum ozone concentration and yield were 2824[ppm] and 21.7[g/kWh] respectively at 2[1/min] air flow rate and 30.5[W] input power. Illumination was also appeared as 5[lx] within 15[cm] from external electrode like used fluorescent lamp.

The Characteristics of a Superposed Discharge Type Ozonizer Using Vacuum Discharge Tube (진공 방전관을 이용한 고농도 중첩방전형 오존발생기의 특성)

  • Song, Hyun-Jig;Lee, Chang-Ho
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.19 no.5
    • /
    • pp.60-67
    • /
    • 2005
  • The superposed discharge type ozonizer of high ozone concentration using vacuum discharge tube has been designed and manufactured. It consists of three electrodes(central electrode, internal electrode, and external electrode) and one discharge gap(discharge gap between internal electrode and external electrode), is a superposed silent discharge type ozonizer for which the AC high voltages applied to the central electrode within discharge tube and the internal electrode has a $180{[^\circ]}$ phase difference and for which the external electrode is a ground. Ozone is generated by overlapping silent discharge between central electrode and external electrode, and silent discharge between internal electrode and external electrode. At the moment, discharge characteristics and ozone generation characteristics were investigated in accordance with vacuum of discharge tube, discharge power of ozonizer, and quantity of supplied oxygen gas. In consequence, high ozone concentration can be obtained 8840[ppm].

The Characteristics of Ozone Generation Synergy Effect for 3 Electrode-1 Discharge Gap Silent Discharge Type Ozonizer using Frequency-Vacuum (주파수-진공도를 이용한 3전극-1방전간극 무성방전형 오존발생기의 오존생성 상승 효과 특성)

  • Song, Hyun-Jig
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
    • /
    • v.19 no.8
    • /
    • pp.94-101
    • /
    • 2005
  • The silent discharge type ozonizer with three electrodes(central electrode, internal electrode, and external electrode) and one discharge gap(discharge gap between internal electrode and external electrode) has been designed and manufactured. It is a silent discharge type ozonizer for which the AC high frequency voltages applied to the central electrode within vacuum discharge tube and the internal electrode for which the external electrode is a ground Ozone is generated by silent discharge in discharge gap. At the moment, discharge characteristics and ozone generation characteristics were investigated in accordance with vacuum of discharge tube, frequency of AC power source, discharge power of ozonizer, and quantity of supplied oxygen gas. In consequence, ozone characteristics proportional to vacuum of discharge tube and frequency of AC power source. The maximum value of ozone can be obtained 7,700[ppm], 460[mg/h] and 70[g/kwh].

Performance Characteristics of a Pin-to-Cylinder Superposed Discharge Type Ozonizer (SDO)

  • Md. Fayzur Rahman;Lee, Kwang-Sik
    • KIEE International Transactions on Electrophysics and Applications
    • /
    • v.11C no.4
    • /
    • pp.113-119
    • /
    • 2001
  • This paper presents a model for a pin-to-cylinder discharge type ozonizer, which utilizes the superposition of surface discharge and corona discharge operation. By changing the gas flow rate, the discharge power and the number of SDO units, the characteristics of ozone concentration ( $O_{3con}$), ozone generation ( $O_{3g}$) and ozone yield ( $O_{3Y}$) were investigated. Using one SDO unit the maximum values of $O_{3con}$, $O_{3g}$ and $O_{3Y}$ were found as 8100[ppm], 1623[mg/h] and 213[g/kWh] respectively. With two SDO units the corresponding values were found as 12800[ppm], 2893[mg/h] and 248[g/kWh] respectively. Hence using two SDO units the efficiency was improved by 16[%].y 16[%].

  • PDF

Analysis of efficient ozonizer character using high-frequency Inverter (고주파 인버터를 이용한 고농도 오존발생기 특성 해석)

  • Kim, Y.H.;Hwang, Y.M.;Noh, I.B.;Kim, Y.B.;Woo, S.H.;Woo, J.I.
    • Proceedings of the KIEE Conference
    • /
    • 2002.07b
    • /
    • pp.1006-1008
    • /
    • 2002
  • Recently deep interests and attractions have been paid on the generation of ozone with environment polisy. Especially, which is widely used to remove bad smell and to clear water. This paper presents control and performance of a voltage source IGBT inverter developed for silent corona discharge type ozonizer. And proposed addition circuit for maintain discharge the center of in the airgap. In this paper, schemed equivalent electric circuit of the discharge electrode for simulation. Finally, the effectiveness of this discharge tube character of ozonizer is investigated in the simulation and experimental results.

  • PDF

A Study on the Lamp Type Ozonizer (Lamp 형 오존발생기에 관한 연구)

  • Kang, Cheon-Su;Song, Hyun-Jig;Lee, Kwang-Sik;Lee, Dong-In
    • Proceedings of the KIEE Conference
    • /
    • 1995.07c
    • /
    • pp.1407-1409
    • /
    • 1995
  • This paper describes ozone concenteration($O_{3con}$), ozone generation($O_{3g}$) and ozone yield($O_{3Y}$) of lamp type ozonizer which be performed a role of lighting source and ozonizer. OLamp is consist of two of low pressure mercury lamps. The important conclusions obtained from this paper are as follows, The more quality of supplied gas(Q) decrease, the higher $O_{3con}$ rise. The more quality of supplied gas(Q) increase, the higher $O_{3g}$ some rise. When supplied oxygen 10[l/min] obtained 4,010[mg/kwh] $O_{3Y}$. The Echerichia coli which is reacted on ozone can be sterilized about 95[%].

  • PDF

Temperature Dependence Characteristics of Double Cylindrical Type Ozonizer (2중 원통형 오존발생기의 온도의존특성)

  • Chun, Byung-Joon;Lee, Sang-Keun;Song, Hyun-Jik;Lee, Kwang-Sik;Lee, Dong-In
    • Proceedings of the KIEE Conference
    • /
    • 1998.11c
    • /
    • pp.953-955
    • /
    • 1998
  • In this paper, a double cylindrical type ozonizer has been designed and manufactured to improve ozone yield by cooling external electrode. The ozonizer equipped with three electrodes( central, internal and external electrodes ) and two gaps. Discharge and ozone characteristics are described in this paper by varying flux( Q ) of oxygen supplied gas, temperature of cooling gas and supplied voltage.

  • PDF