Study on Corona Discharge Test under the Power Frequency Voltage of the Severe Non-uniform Electric Field Based on the UV-light Imaging Technology

2006 ◽  
Author(s):  
Ma Bin ◽  
Zhou Wenjun ◽  
Wang Tao ◽  
Ding Yigong
Keyword(s):  
Electric Field ◽  
Corona Discharge ◽  
Uv Light ◽  
Uniform Electric Field ◽  
Imaging Technology ◽  
Power Frequency ◽  
Discharge Test

scholarly journals Theoretical and practical aspects of the development of devices for suppressing dust streams such as "electrostatic gate" for industrial ventilation systems

2019 ◽  
Vol 104 ◽  
pp. 01014 ◽  
Author(s):  
Maxim S. Minkin ◽  
Denis N. Kuimov ◽  
Mikhail A. Shahramanyan
Keyword(s):  
Electric Field ◽  
Corona Discharge ◽  
Fine Fraction ◽  
Physical Characteristics ◽  
Uniform Electric Field ◽  
Fine Dust ◽  
Practical Application ◽  
Industrial Ventilation ◽  
Ventilation Systems

The main objective of this work is to study the behavior of fine dust fractions (aerosols) of different nature in a non-uniform electric field (corona discharge) under electric, gravitational, aerodynamic and other disturbances. Determination of fundamental principles, and development of methods for controlling fine-fraction particles with predetermined physical characteristics. This article also presents the results of practical application of the developed methods.

Research of Discharge Characteristics of CO2 Gas in Small Distance

2013 ◽  
Vol 860-863 ◽  
pp. 2194-2198
Author(s):  
Quan Wang ◽  
Huan Wang ◽  
Qiong Xiang
Keyword(s):  
Electric Field ◽  
Breakdown Voltage ◽  
Dielectric Strength ◽  
Small Distance ◽  
Uniform Electric Field ◽  
Key Indicator ◽  
Discharge Device ◽  
Power Frequency ◽  
Gas Insulation ◽  
Insulating Properties

In order to find a new kind of insulates gas to substitute for SF6 gas, a discharge device has been development with shifter electrodes and adjusts distances automatic. Uniform electric field, non-uniform electric field had been achieved in this discharge device. The power-frequency voltage-withstand test of CO2 gas has been taken in these three kinds of electric field. In this test, data of breakdown voltage were obtained under different pressure and distances of electrodes with 99.99% purity of CO2. It can be seem from these data that the value of breakdown voltage is positive correlation to pressure and distances of electrodes. Whats more? For uniform electric field, the dielectric strength meet the requirement of power-frequency voltage-withstand of 110kV gas insulation device when the distance of test electrodes no less than 30mm. For non-uniform electric field, the dielectric strength of gas insulation of CO2 gas has little difference until the pressure increased to 0.5MPa. According to the data of power-frequency voltage-withstand test it can be conclude that the 0.5MPa is a key indicator to improve the insulating properties.

Multi-Stage Collector Design and Applications

2003 ◽  
Author(s):  
Henry V. Krigmont
Keyword(s):  
Electric Field ◽  
Corona Discharge ◽  
Gas Flow ◽  
Uniform Electric Field ◽  
Two Stage ◽  
Current State ◽  
Fine Particulate ◽  
Multi Stage ◽  
Corrugated Plates ◽  
Particulate Control

The Multi Stage Collector (MSC™) concept for ultra-fine particulate control not only retains the best advantages of current state-of-the-art technology but also makes significant improvements. The new MSC™ design provides a synergistic combination of both single- and two-stage electrostatic precipitation while incorporating an additional collector-stage by filtering the gas exiting the collector through a barrier collector-zone. This arrangement ensures that essentially all dust would be detained in this final stage. The MSC™ contains multiple narrow and wide zones formed by a plurality of parallel corrugated plates. Enclosed in the narrow zones are discharge electrodes. These electrodes provide a non-uniform electric field leading to corona discharge. The corona discharge causes particulate matter in the gas flow to become charged. Wide regions contain barrier filters thus creating the two-stage precipitator with relatively uniform electric field. In these regions, particles are collected on both plates and on the porous barrier elements, which also act as the final filtering stage. Results of the applications analyses and future development work are discussed. The gas flow analyses with an aid of the CFD model are presented below.

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