전기 집진기의 유동 균일도 향상을 위한 챔버 설계에 관한 연구

방일호,김학민,염정국 대한기계학회 2023 大韓機械學會論文集B Vol.47 No.10

In this study, we designed an electrostatic precipitator to reduce particulate matter emissions from a marine diesel engine. We determined the optimal collecting plate spacing inside the electrostatic precipitator and evaluated its performance through experiments. We also used numerical analysis to identify the flow uniformity inside the electrostatic precipitator that was difficult to confirm through experiments. We analyzed the electric current and voltage according to the distance of the collecting plate to select the optimal plate gap and confirm the dust collection efficiency. We calculated the flow uniformity of the electrostatic precipitator by checking the internal flow velocity through numerical analysis and evaluated the structural safety by examining stress and deformation. The study results showed that the electrostatic precipitator was stable with a collecting plate spacing of 15 mm and a dust collection efficiency of 80% or more. We also observed a flow uniformity of more than 92% through numerical analysis and confirmed the structural safety of the precipitator.

전기집진기 설계 전용 CAD 시스템 개발에 관한 연구

趙顯德 경일대학교 산업기술연구소 1995 産業技術硏究所 論文集 Vol.5 No.-

Electrostatic precipitator is the equipment that separates dust particles from the gas in which they are suspended. Specially, for the construction of industrial electrostatic precipitator the corporations would send the technical papers to a customer to accept an order. And, it is made a detail drawing after accept an order. Since the basic techni cal design of electrostatic precipitator is very complex it takes long time and includes design errors. Thus, for competitiveness in these industries, the development of software for technical and concept design is important. In this study, the software is called 'KOCO', and deals with a basic technical and concept design of industrial electrostatic precipitator. By using the software, design time was very short, design errors reduced largely, and the standardization of design could be carried out.

Demonstration of a Modular Electrostatic Precipitator to Control Particulate Emissions from a Small Municipal Waste Incinerator

Panich Intra,Artit Yawootti,Nakorn Tippayawong 대한전기학회 2014 Journal of Electrical Engineering & Technology Vol.9 No.1

Incineration is conceptually sound as a waste treatment technology. There is, however, concern over its emissions when it is improperly designed and operated. An electrostatic precipitator is one of the most commonly used devices to control particulate emissions from boilers, incinerators and some other industrial processes. In this work, a modular electrostatic precipitator with sizing of 1 m × 1 m×1 m was developed for removal of particulate matter from the exhaust gases of a small waste incinerator. Its design was based on a simple wire-and-plate concept. The corona discharge wires were connected to a positive high-voltage pulse generator, while the collection plates were grounded. The high-voltage pulse generator was used to produce the corona discharge field between the individual discharge wire and the collection plate. The particulate-laden exhaust gas flow was directed across the corona discharge field. The charged particles were deflected outward and collected on the plate. The collection efficiency was evaluated as a mass loading ratio between the difference at the inlet and the outlet to the particulate loading at the inlet of the precipitator. The collection efficiency of this modular electrostatic precipitator design was approximately 80 %.

전기 집진기의 진동 탈진용 공진형 전자기 진동 가진기를 적용한 집진판의 진동 특성 해석 및 가속도 측정

김제훈(Je-Hoon Kim),김진호(Jin-Ho Kim),정상현(Sang-Hyun Jeong),한방우(Bang-Woo Han) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.10

The miniaturization of electrostatic precipitator is becoming a key element to the success of the efficient electrostatic precipitator due to the limited space allowed to install electrostatic precipitator in subway tunnel. Therefore, the miniaturization of rapping system in electrostatic precipitator is also important. This research proposes a resonant-type electromagnetic vibration exciter for vibrating rapper of electrostatic precipitator. Collected dust is removed by a compact size of vibrating rapper from collecting plates, not by imposing direct impact to the dust collecting plates. Moreover, to analyze the acceleration when the number of collecting plates increased from one to four, we manufactured a prototype. Additionally, we analyzed a prototype of resonant frequency using ANSYS, and we measured the acceleration at the resonant frequency.

전기집진기 Layout 설계를 위한 소프트웨어 개발

조현덕,윤문철,박기서 한국공작기계학회 1997 한국생산제조학회지 Vol.6 No.1

Electrostatic precipitator is the equipment that separates dust particles from the gas in which they are suspended. Specially, for the construction of industrial electrostatic precipitator, the corporations would send the layout design to a customer to accept an order. Therefore, it is mae a detail drawing after accept ance. Since the layout design of electrostatic precipitator is very complex, it takes time and design errors are included. Thus, for competitiveness in these industries, the development of software for the layout design of electrostatic precipitator is important. In this study, the developed software deals with technical concept and layout design of industrial electrostatic precipitator. By using the software, design time was very short, design errors reduced largely, and the standardization of design could be carried out.

Demonstration of a Modular Electrostatic Precipitator to Control Particulate Emissions from a Small Municipal Waste Incinerator

Intra, Panich,Yawootti, Artit,Tippayawong, Nakorn The Korean Institute of Electrical Engineers 2014 Journal of Electrical Engineering & Technology Vol.9 No.1

Incineration is conceptually sound as a waste treatment technology. There is, however, concern over its emissions when it is improperly designed and operated. An electrostatic precipitator is one of the most commonly used devices to control particulate emissions from boilers, incinerators and some other industrial processes. In this work, a modular electrostatic precipitator with sizing of $1m{\times}1m{\times}1m$ was developed for removal of particulate matter from the exhaust gases of a small waste incinerator. Its design was based on a simple wire-and-plate concept. The corona discharge wires were connected to a positive high-voltage pulse generator, while the collection plates were grounded. The high-voltage pulse generator was used to produce the corona discharge field between the individual discharge wire and the collection plate. The particulate-laden exhaust gas flow was directed across the corona discharge field. The charged particles were deflected outward and collected on the plate. The collection efficiency was evaluated as a mass loading ratio between the difference at the inlet and the outlet to the particulate loading at the inlet of the precipitator. The collection efficiency of this modular electrostatic precipitator design was approximately 80 %.

산업공정 배가스 내 미세먼지 저감을 위한 Multi-Cyclone형 고효율 전기집진기 개발에 관한 연구

박세준(Se-Joon Park),박주형(Ju-Hyoung Park),노영훈(Young-Hoon Noh),최영찬(Young-Chan Choi),강승창(Seung-Chang Kang),이영주(Young-Joo Lee),최종원(Jong Won Choi) 한국에너지기후변화학회 2021 에너지기후변화학회지 Vol.16 No.2

This study conducted the development of a 600 CMH multi-cyclone electro-precipitator to reduce particulate matter in flue gas of industrial process such as a smelting works, solid fuel fired power plant and manufacturing plant. We investigated the characteristics of electrostatic spraying with visualization apparatus and obtained various design parameters to apply to a electrostatic-spraying cyclone precipitator. The multi-cyclone electro-precipitator is a combined system of cyclone-type electric precipitator and electrostatic-spraying precipitator and exhibited quite higher removal efficiency of particulate matter in flue gas compared to conventional dry or wet electric precipitators; PM1.0 91.45% (0.008 mg/m³), PM2.5 99.1% (0.014 mg/m³), PM10 99.9% (0.026 mg/m³) respectively.

Design and Experiment of an Electromagnetic Vibration Exciter for the Rapping of an Electrostatic Precipitator

Je-Hoon Kim,Jin-Ho Kim,Sang-Hyun Jeong,Bang-Woo Han 한국자기학회 2012 Journal of Magnetics Vol.17 No.1

The miniaturization of an electrostatic precipitator has become a key element in successfully constructing an efficient electrostatic precipitator because of the limited space allowed for installation in a subway tunnel. Therefore, the miniaturization of the rapping system of the electrostatic precipitator has also become important. This research proposes a resonant-type electromagnetic vibration exciter as a vibrating rapper for an electrostatic precipitator. The compact vibrating rapper removes collected dust from the collecting plates without direct impact on those collecting plates. To characterize the dynamic performance of the electromagnetic vibration exciter, finite element analysis was performed using a commercial electromagnetic analysis program, MAXEWLL. Moreover, we analyzed the resonant frequency of an electrostatic precipitator, to which the electromagnetic vibration exciter was applied, by ANSYS. Also, to measure the acceleration generated by the electromagnetic vibration exciter, we manufactured a prototype of the ESP and electromagnetic vibration exciter and measured its acceleration at the resonant frequency.

A numerical study on particle collection for wavy dielectric plate in 2-stage wire-plate electrostatic precipitator

박재현,하만영,이동근 대한기계학회 2023 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.37 No.10

This study numerically investigated the ultrafine particle collection characteristics in the two-stage electrostatic precipitator with the dielectric plate according to the shape of the dielectric separator and air inlet velocity. This study developed a multi-physics model which analyzes the electrostatic characteristics and particle motion of the electrostatic precipitator and was implemented by using UDF (user defined function) in Ansys Fluent. The effect of the electro-hydrodynamic flow induced by the corona discharge formed in the vicinity of the high voltage wire on the air flow in the charged region of the electrostatic precipitator was investigated. The trajectories of charged ultrafine particles and their collection efficiency depended on the shape of the dielectric separator and air inlet velocity. The collection efficiency for the wavy dielectric separator is higher when the air inlet velocity is low and lower when the air inlet velocity is high, compared to that for the flat dielectric precipitator.

전자기 리니어 엑츄에이터를 적용한 집진기의 진동 탈진장치에 대한 연구

김제훈(Je-Hoon Kim),김진호(Jin-Ho Kim),박세명(Se-Myung Park),정상현(Sang-Hyun Jeong),한방우(Bang-Woo Han) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11

Nowadays, a research on electrostatic precipitator in urban railroad equipment technology is under an active study. More and more, its miniaturization is becoming a key element to the success of the efficient electrostatic precipitator due to the limited space allowed to install electrostatic precipitator in subway stations. Therefore, there is an increasing need for replacing dry rapping system used with a hammer, which is the most pervasive method to clean electrostatic precipitators. This research proposes vibrating rapper for cleaning electrostatic precipitator using electromagnetic linear actuator. Collected dust is removed by vibrating actuator from collecting plates and discharge electrodes, not by imposing direct impacts to the dust collecting plates.