The electrostatic precipitator esp is used in the thermal power plant for removal of fly ash from the flue gas because of the environmental laws. Chapter 19 emissions from power plants and industry, electrostatic precipitator. Electrostatic precipitator of thermal power plant youtube. Esp installed in coalfired power plant was in 1923, just after the pulverizedcoal.
Construction, working, operation and maintenance of. Approximately 64% of all flue gas generated by combusting coal in electric power plants s treated in electrostatic. An electrostatic precipitator esp is an electromechanical device which filters out particles fly ashfumessuspended dirt from airgas stream flue gas if from a boiler or furnace before releasing. The gas flow distribution in electrostatic precipitator esp ducts of a thermal power plant was numerically simulated with cfd. Electrostatic precipitators esp air quality control systems aqcs.
Our patented switched integrated rectifier sir technology reduces the particulate emission level and improves esp overall performance without the need for costly extensions. Mitsubishi hitachi power systems mhps contributes to air pollution control at thermal power plants, steel plants, and various industrial plants. Why do the gases that exit a scrubber system have to be reheated before being vented to the atmosphere. Principle of operation of electrostatic precipitator. The operation of kosovas thermal power plants tpp from the time of their. The presence of large quantities of the carbon in the gas can adversely affect the efficiency of the electrostatic precipitator. Performance enhancement of electrostatic precipitator. Electrostatic precipitator for marine engines automatic maintenance mechanism we have developed a holetype electrostatic precipitator esp top. Fp01 the evaluation of collection efficiency on electrostatic precipitator by visibility index.
Likewise, having more than one electrical field in parallel allows adjustments to compensate for their differences, so that power. This electrical equipment was first introduced by dr. An electrostatic precipitator esp is installed at the outlet of the boiler. An electrostatic precipitator esp is a filtration device that removes fine particles, like dust and. Japan, as well as was a clearinghouse for any process improvements. On the basis of the middle experiment model, gambit and icem cfd. Weidmann diagnostic solutions electrostatic precipitator transformerrectifier evaluation using dissolved gas inoil analysis abstract electrostatic precipitators esps are critical to the clean delivery of electric power.
Coal used in indian thermal power stations is of inferior grade, at power plant flue gas is often treated. Stella north power station electrostatic precipitators. Electrostatic precipitators ge power, alstom power systems. Components of electrostatic precipitator electrical4u. Reduction of nox generation from electrostatic precipitators pdf. Thermal power plant presentation air pollution chimney.
At thermal power plants in india and china, general precipitators for pm. Electrostatic precipitators esp are used to control fly ash emitting from the boilers of the power plants. Electrostatic precipitator competes with the fabric filters essentially a reusable vacuum cleaner bag good down to 0. Working principle of electrostatic precipitator electrical4u. More than 2000 esps are working successfully in india and overseas across sectors including power.
An electrostatic precipitator esp is a filtration device that removes fine particles, like dust and smoke, from a flowing gas using the force of an induced electrostatic charge minimally impeding the flow of. Alstom electrostatic precipitators, offer a reliable solution to the demands of. Hoppers are fitted below the electrostatic precipitator. An electrostatic precipitator esp removes particles from a gas stream by using electrical energy to charge particles either positively or negatively. According to the author, esp made in china not only meets the domestic requirement, but also be exported to decades of countries. Electrostatic precipitator esp is a highly efficient device for cleaning exhaust gases from industrial processes. This video shows intallation progress of an electrostatic precipitator esp of thermal power plant. An electrostatic precipitator esp removes particles from a gas stream by using.
Pdf an analysis on the velocity of dust particles in the platetype. Working of electrostatic precipitator an esp works because of electrostatic attraction like charges repel. Esp in thermal power plant is a filtration is used to remove dusts from flue gas using the. Electrostatic precipitation includes selected papers presented at the 11th international conference on electrostatic precipitation. Emission controls at kosovas thermal power plants, current and.
Working of electrostatic precipitator today we discussed about a very important equipment of power plant thats is electrostatic precipitator. Flow simulation in an electrostatic precipitator of a. Upgrading electrostatic precipitators power engineering. The performance of traditional electrostatic precipitators esps is strongly affected by the flue gas temperature. Characteristics of particulate matter from four coalfired.
Functional principle electrostatic precipitation 1 high voltage generator 2 discharge electrode 3 collecting electrode arawgas. Electrostatic precipitator esp is a flagship product of thermax apc business. Power plant is one of the major industrial sectors using esp. Pdf experimental data collected from different platetype electrostatic precipitators used in a thermoelectric power plant has been analyzed. It presents the newest developments in electrostatic precipitation, flue gas desulphurization fgd, selective catalytic reduction scr, and non thermal. The electrostatic precipitator system of the lignite fired 350 mwe unit b1 of thermal power plant kostolac b has been modernized during 2014.
Electrostatic precipitator, also called electrostatic air cleaner, a device that uses an electric charge to remove certain impuritieseither solid particles or liquid dropletsfrom air or other gases in smokestacks and other flues. Electrostatic precipitators esps have been used for over 100 years to remove entrained solid particulates or fine mists from gas flows in the power, cement, metal production, paper, and other. What is an electrostatic precipitator in a thermal power. Cottel in 1906 and was first economically used in 1937 for removal of dust and ash particles with the exhaust gases of thermal power plants 2.
Electrostatic precipitators esp collect dust in the flue gas produced by boiler, etc. Monitoring by control technique electrostatic precipitators air. Weidmann diagnostic solutions electrostatic precipitator. When any fuel is used in the boiler say coal or wood chip or rice husk etc ash is generated. Esps are common installations on coalfired power plants to remove over 99% of ash particles from million ft3 per minute of fumes. Scribd is the worlds largest social reading and publishing site. A large power plant generating 500 mw of electrical power typically burns 200. A precipitator is designed specifically for an ash produced by coal containing a certain amount of sulfur. Electrostatic precipitators are mandatory nowadays in thermal power plants and other power plants where there is a discharge of flue gases. Wesp wet electrostatic precipitator who world health organisation.
Aqcs air quality control system for thermal power plants. We offer a wide range of advanced high voltage power supplies for electrostatic precipitators to meet your plant. An electrostatic precipitator esp is a device that removes dust particles from a flowing gas such as air using force of an induced electrostatic attraction i. Limited, rourkela certification this is to certify that the project entitled general overview of nspclroukela themal power plant. Pq measurement analysis of electrostatic precipitator imeko. Working of electrostatic precipitator adventage and. Pdf results of the modernization of the electrostatic.
Electrostatic precipitator pollutioncontrol device. With ever increasing concern about environmental pollution and the need to reduce it, electrostatic precipitators have become a necessity. An electrostatic precipitator does not contribute directly to the production of electricity in the thermal power plant, but it helps to keep the atmosphere clean which is quite important for living beings. Romil kumar electrostatic precipitator esp principle. Studies, modification and application of electrostatic. Emission standards and control of pm from coalfired power. Thermal power plant kostolac b has been modernized during 2014. Saturne vertical turbine pumps for thermal and nuclear power plants. The charged particles are then attracted to collector. Thermal power plant presentation free download as powerpoint presentation. Electrostatic precipitators esp air quality control.
Electrost a tic precipit a tors advanced computational. Most power stations burn fossil fuels such as coal or oil to generate electricity for use. If the applied voltage is high enough, an electric corona discharge ionizes the air. Click on the papers title to view the complete paper in pdf format. An electrostatic precipitator is a type of filter dry scrubber that uses static electricity to remove soot and ash from exhaust fumes before they exit the smokestacks. Coal, gas, diesel and naphtha are called thermal resources and the plants that operate on them are known as thermal power plants.
Monitoring by control technique electrostatic precipitators. Thermal power plant and study of the electrostatic precipitator by sayantan jana under the guidance of j. Eloctrostatic precipitator esp at rihand super thermal power station in india. Cyclones versus electrostatic precipitators cyclones and electrostatic precip itators are two different types of equipment, each capable of removing particles from an air stream. Esp is used for the cleaning exhaust flue gases which is comes out from the chimney and help us for the environment protection the principal of electrostatic precipitator. How does an electrostatic precipitator operate in a power.
1508 821 621 1202 932 1400 1288 423 926 965 1380 1202 1018 1608 1127 80 1071 1441 106 20 1490 1366 308 510 820 1444 1277 300 33 637 310 77 641 799 1436 410 448 844 1435 1395 1025 1402 328 379 1438 1456