Generally bituminous,brown or peat type coal are used as the fuel of coal basesd thermal power plant. Its practical approach is ideal for engineering professionals. Thermal power plant kostolac b has been modernized during 2014. A thermal power station is a power plant in which the prime mover is steam driven. Electrostatic precipitator esp performance upgrades increase plant output while maintaining aqcs equipment quality and environmental compliance. View and download powerpoint presentations on electrostatic precipitator ppt. Range includes but is not limited to zones, collecting electrodes. Manual for the use of electrostatic precipitators to collect. A thermal power plant is a power plant where steam is used to drive a steam turbine. The energy of a thermal power station not utilized in power production must leave the plant in the form of heat to the environment. An esp uses a high voltage electrostatic field to separate dust, fume or mist from a gas stream. When t he decision arises regar ding which type to adopt in a specific situation, one needs to know the advantages and disadvantages of each type of equipment. We manufacture and export electrostatic precipitator spares and replacement parts as per global export standards. Title operate boiler electrostatic precipitators in a thermal.
Static general knowledge is the integral part of all the government exams like ssc exams, ibps exams and other competition exams. Flow simulation in an electrostatic precipitator of a thermal power plant article in applied thermal engineering 2910. An electrostatic precipitator esp is a panicle control device that uses. Thermal power plant presents practical content on coal, gas, oil, peat and biomassfueled thermal power plants, with chapters in steam power plant systems, start up and shut down, and interlock and protection. Electrostatic precipitator pollutioncontrol device. It is used to filter dust particle in the flue gas in thermal power plant. Construction, working, operation and maintenance of. Air pollution, waste generation,water consumption,emission of mercury,greenhouse emission impact of thermal power plant on water source water intensive new thermal power plant of 500 mw installed capacity requires around 14 million m3 of water per annum. Characteristics of particulate matter from four coalfired. We supply high quality of spares within the specified timeframe, to every corner of the globe, with our wide network. Environmental impact of thermal power plant in india and its.
Electrostatic precipitators esp air quality control. However, the most fundamental challenge is meeting the growing power demand in sustainable and efficient ways. Due to strict regulation and everincreasing air pollution, installing one in a thermal power plant or any other power plants where flue gases are released, have become a necessity. Working of electrostatic precipitator adventage and. Among thermal based power generation, coal based power plants are highest in. 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. Thermal power plants are one of the most important process industries for engineering professionals. This report presents the results of an extensive evaluation of the hotside electrostatic precipitator esp on the san juan power plant unit 1, near farmington, new mexico. Electrostatic precipitators esp air quality control systems aqcs. Demonstrate knowledge of boiler electrostatic precipitator systems and controls. Likewise, having more than one electrical field in parallel allows adjustments to compensate for their differences, so that power. The predicted results show a reasonable agreement with the measured data.
Currently, four fuels are used in a steam electric power plant. Electrostatic precipitator,esp,working principle of esp in hindi,esp in power. The performance of electrostatic precipitator esp is significantly affected by complex flow distribution. Steam electric power plants are production facilities of the thermal electric power industry. The locations of the boiler and stack are set, and an electrostatic precipitator or baghouse may have been added since the plant was built. Accurate measurements of the primary electrostatic transformer current are necessary to keep a stable process. Nwl offers the following whitepapers, case studies, technical documents and application notes 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. In this section we briefly outline the basics of the three most widely found generating stations thermal, hydel and nuclear plants in our country and elsewhere. Electrostatic precipitator arizona state university. Thermal power plant and study of the electrostatic precipitator by sayantan jana under the guidance of j. 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 is attraction between. The gas flow distribution in electrostatic precipitator esp ducts of a thermal power plant was numerically simulated with cfd.
Pollution control technologies applied to coalfired power plant operation maciej rozpondek1 and marian siudek 2 burning of fossil fuels is the major source of energy in todays global economy with over onethird of the worlds power generation derived from coal combustion. Electrostatic precipitator of thermal power plant youtube. Working principle of electrostatic precipitator electrical4u. Oct 17, 2011 punj lloyd types of power plants mechanical energy electrical energy thermal station. The farmers allege that shutting off the thermal power plants electrostatic precipitator caused the fog. When any fuel is used in the boiler say coal or wood chip or rice husk etc ash is generated.
Introduction coal is the only natural resource and fossil fuel available in abundance in india. The precipitator consists of vertical parallel plates collecting plateselectrodes. There are different procedures that can be used to heat the water. Jan 01, 2016 this video shows intallation progress of an electrostatic precipitator esp of thermal power plant. An electrostatic precipitator esp is an device that removes dust particles from a flowing gas such as air using the force of an induced electrostatic attraction i. Environment impact assessment of thermal power plant for.
In contrast to wet scrubbers which apply energy directly to the flowing fluid medium, an esp applies energy only to the particulate matter being collected and therefore is very efficient in its consumption of energy in the form of electricity. Pm controlpm control xcyclones xbaghouses xesps xscrubbers xparticulate filters cyclones. Esp in thermal power plant is a filtration is used to remove dusts from flue gas using the. Dash, behera and rath 9 while exploring alternative matrices for indias future power demand have observed that there is substantial scope for improvement of the performance of the thermal power plants and suggested for aggressive action plan for augmenting the current output levels. Electrostatic precipitators esp collect dust in the flue gas produced by boiler, etc. Electrostatic precipitators have become the norm now in industries. Flue gas generated when fossil fuels like coal are burned in thermal power plants contains constituents that are potential causes of global warming and acid rain. Thermal power plant or steam power plant is a generating station which converts heat energy of fossile fuels into electrical energy. Esp installed in coalfired power plant was in 1923, just after the pulverizedcoal. Electrostatic precipitatorelectrostatic precipitator bio mass power plantbio mass power plant.
The model developed is a novel tool for the thermal power plant to predict the effect of possible modifications made to the esp design on the flow pattern. As a result of losing an electron which is negative, the gas molecules become positively charged, that is, they become positive ions as shown in above figure. Japan, as well as was a clearinghouse for any process improvements. As per government low the to avoid air pollution these kind of precipitators are widely used. The width of the collection plates in a large electrostatic precipitator can be several meters and the height up to 15 m. A great deal has been written and said in the media recently about electrostatic precipitator esp commercial air purifiers and ozone generators. An electrostatic precipitator system may include several sections energized from separate highvoltage supplies. Consequently, it is used widely as a thermal energy source and also as fuel for thermal power plants producing electricity 1. Electrostatic precipitator free download as powerpoint presentation.
An electrostatic precipitator in a thermal power plant is. Mar, 2017 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 out of a chimney. An electrostatic precipitator in a thermal power plant is not able to generate high voltage of several thousands. After this, the water is condensed, and may be used again.
Air pollution control equipment for todays need are electrostatic precipitator esp, fabric. For the drag force, we assume that the particles are very small. Electrostatic precipitator meaning of electrostatic. Electrostatic precipitator esp is a flagship product of thermax apc business. Electrostatic precipitators esp are used to control fly ash emitting from the boilers of the power plants. Coal used in indian thermal power stations is of inferior grade, at power plant flue gas is often treated with a series of chemical process and scrubbers, having low calorific value35004500kcalkg and high ash content due to drift origin. A theoretical investigation of efficiency enhancement in. This solution was subjected to extensive experimental investigation at te morava from 2008. The precipitator functions by applying energy only to the particulate matter being collected, without significantly impeding the flow of gases. Emission standards and control of pm from coalfired power. High frequency power supply for electrostatic precipitators. 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 gases through the unit in contrast to wet scrubbers, which apply energy directly to the flowing fluid medium, an esp applies energy only to the particulate matter being collected and.
Many countries around the world, including our own, depend on coal and other fossil fuels to produce electricity. Wesp wet electrostatic precipitator who world health organisation. Practicing power plant engineers not only look after operation and maintenance of the plant. In this study the flue gas flow through the esp at a local power station is modelled numerically using computational fluid dynamics cfd code fluent to. Esp to to remove the ash particulate matter from dust laden gas and is used in coal power plants. Thermal power plants emit fly ash as well as other flue gases like. Working of electrostatic precipitator an esp works because of electrostatic attraction like charges repel. Limited, rourkela certification this is to certify that the project entitled general overview of nspclroukela themal power plant and the study of the. Over the past few decades, the power sector has been facing a number of critical issues. Panipat thermal power station is a project of haryana power generation company limited situated in panipat jind road at about 11kms. Unfortunately, as often happens during media frenzies, the truth gets lost amid generalizations, assumptions and poor reporting. Condenser w 0 steam power plant q h h out 4 1 the thermal efficiency of the rankine cycle is determine from net out th in in k 1 wq qq where w q q w w net in out turbine, out pump, in deviation of actual vapor power cycle from idealized ones the actual vapor power cycle differs from the ideal rankine cycle, as a result of. Electro static precipitator esp in thermal power plant.
Steel industry is a power intensive industry and requires uninterrupted power supply to critical loads. Likewise, having more than one electrical field in parallel allows adjustments to compensate for their differences, so that power input can be optimized. Upgrading electrostatic precipitators power engineering. Electrostatic precipitator, fly ash, resistivity, thermal power plant introduction fly ash particles, which are produced from coal fired thermal power stations in the form of suspension. Pdf flow simulation in an electrostatic precipitator of. Hoppers are fitted below the electrostatic precipitator chamber for collecting dust particles. Sep 25, 20 electrostatic precipitator esp working function 1. If the waste heat is instead used for district heating, it is called cogeneration. Retrofit power supply of electrostatic precipitators on thermal power plantmorava presentation pdf available october 2011 with 827 reads how we measure reads. Performance enhancement of electrostatic precipitator. Electrostatic precipitator efficiency electrical4u.
Most of the conventional energy losses optimization method are iterative in nature and require the interpretation of the designer at each iteration. Flow simulation in an electrostatic precipitator of a. Also some other power plants are using bag filter dust collecting system. How does an electrostatic precipitator operate in a power. Performance analysis of coal fired power plants in india. In a thermal power palnt, coal is burnt in a big boiler which produces. Working of electrostatic precipitator today we discussed about a very important equipment of power plant thats is electrostatic precipitator. Thermal power plant recruiters thermal power plant. The presence of large quantities of the carbon in the gas can adversely affect the efficiency of the electrostatic precipitator. On the basis of the middle experiment model, gambit and icem cfd. Our dry type electrostatic precipitators are quite. It has electrode wires that are maintained at several. Electrostatic precipitator an overview sciencedirect.
Mar 29, 2017 electrostatic precipitator esp is a particulate removal device that removes suspended particulate matter from combustible products using an electrostatic force. The first four units was bifurcated from the total 8 units of the plant, so that to form panipat thermal power station i and ii. There is interest in the san juan precipitator because it is one of the few hotside precipitators in the us utility industry that is. The results of the simulation are discussed and compared with onsite measured data supplied by the power plant. Birmingham, al prepared for industrial environmental research lab.
A natural result from the burning of fossil fuels, particularly coal, is the emission of flyash. This turbine is connected to an electrical generator. If the applied voltage is high enough, an electric corona discharge ionizes the air. The mechanical energy is produced by inducing high pressure water through a nozzle onto the turbine. The performance of traditional electrostatic precipitators esps is strongly affected by the flue gas temperature. High frequency power supply is proven to reduce emission two times in controlled conditions while increasing energy efficiency of the precipitator, compared to the conventional thyristor controlled 50 hz supply. The paper presents an application of a numerical method for the determination of the steam flow rates necessary for heating the feedwater that enters into the steam generator. Water is heated, turns into steam and spins a steam turbine which either drives an electrical generator or does some other work, like ship propulsion. A steam electric power plant product is electrical energy. Esps are common installations on coalfired power plants to remove over 99% of ash particles from million ft3 per minute of fumes. Recent progress of dry electrostatic precipitation for pm2. Find powerpoint presentations and slides using the power of, find free presentations research about electrostatic precipitator ppt. Reduction of nox generation from electrostatic precipitators pdf.
Panipat thermal power station is situated at a distance of about 12 km. The electrostatic precipitator system of the lignite fired 350 mwe unit b1 of thermal power plant kostolac b has been modernized during 2014. An electrostatic precipitator esp is installed at the outlet of the boiler. Pdf retrofit power supply of electrostatic precipitators. 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 out of a chimney. But whether electrostatic precipitators perform the function expected from them can be determined by measuring the efficiency of the device. Moreover, it affects the environment of not only the. This electrical equipment was first introduced by dr. This waste heat can go through a condenser and be disposed of with cooling water or in cooling towers. 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. Power plant is one of the major industrial sectors using esp. If you are preparing for any government exam, then knowing about the important hydro electric, thermal and nuclear power plants in india will help you to score well in the exam. Pdf results of the modernization of the electrostatic.
From maintenance perspective of esp used in thermal power plants in india, analysis could be considered enough for predicting the performance of esp. He has been working under my guidance from 3nd to 30th june 2010. Electrostatic precipitator in modern thermal power plant. Department of commerce national technical information service r. At present, four units of 110 mw, two units of 210 mw and two units of 250 mw each are generating electricity. The results of complex in site measurements, performed. Comparison of performance of electrostatic precipitator and bag dust collector in thermal power plant published on august 10, 2017 august 10, 2017. Principle of operation of electrostatic precipitator.
What is the function of an electrostatic precipitator in a. The power plant is one of the coal based power plants of hpgcl. Electrostatic precipitator applications the applications of electrostatic precipitator include the following the most mon application of electrostatic precipitator is an industrial application for a smoke it looks like a gas however it is basically an accumulation of hard elements floating in. Thermal power plant simple english wikipedia, the free. This requires a dependable and reliable captive power source which can cater to all important loads of the plant all the time for safe and smooth operation of the steel plant. Limited, rourkela certification this is to certify that the project entitled general overview of nspclroukela themal power plant and the study of the electrostatic precipitator was undertaken by sayantan jana under my supervision at nspcl, rourkela. Coal used in indian thermal power stations is of inferior grade, at power plant flue gas is often treated with a series of chemical process. Energy analysis of thermal power plant raviprakash kurkiya, sharad chaudhary abstract energy analysis helps designers to find ways to improve the performance of a system in a many way. Pb81112757 a manual for the use of electrostatic precipitators to collect fly ash particles southern research inst. The turbine is rotated by steam which is produced by the heat generated by burning fuel in a boiler. Mitsubishi hitachi power systems mhps contributes to air pollution control at thermal power plants, steel plants, and various industrial plants. Comparison of performance of electrostatic precipitator. Electrostatic precipitator spares, bag filter spares. Electrostatic precipitator definition of electrostatic.
Flow simulation in an electrostatic precipitator of a thermal. According to the author, esp made in china not only meets the domestic requirement, but also be exported to decades of countries. May 19, 2019 find 454 thermal power plant recruiters on. Electrostatic precipitator nature physical sciences. This video shows intallation progress of an electrostatic precipitator esp of thermal power plant. 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. Denox, desox, and co2 removal technology for power plant 174 denox, desox, and co2 removal technology for power plant overview. Denox, desox, and co2 removal technology for power plant. 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.
Pollution control technologies applied to coalfired power. Electrostatic precipitator market size, industry share and. Electro static precipitator is also called in the short form of esp. Coal, fly ash, thermal power plant, electro static precipitator, combustion. A coal based thermal power plant converts the chemical energy of the coal into electrical energy. Cyclones versus electrostatic precipitators cyclones and electrostatic precip itators are two different types of equipment, each capable of removing particles from an air stream. What is an electrostatic precipitator in a thermal power. Numerical methods applied for power plant calculations. Current measurement electrostatic precipitator coal. The spacing between the plates is typically in the range of 2040 cm. In a coalfired power plant, using the force of an induced electrostatic charge, an electrostatic precipitator esp is used to remove ash, dust and smoke from flue gas so it does not pass into the atmosphere.
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