In general, the most difficult particles to collect are those. An electrostatic precipitator esp is a particle control device that uses electrical forces to move the particles out of the flowing gas stream and onto collector plates. Being the air pollution control technology supplier of choice, gea offers innovative system designs, stateoftheart microprocessor controls and constantly upgrades and rebuild enhancement strategies for your specific. The collected particles may be removed from the collector plates as dry material dry esps, or they.
Qupstreamcupstream qdownstreamcdownstream qdriftcdrift. Describe how an esp operates to collect particulate matter 3. Nptel, online courses and certification, learn for free. In general, dry esps operate most efficiently with dust resistivities between 5 x 103 and 2 x 1010 ohmcm. Detail information on various components is given in the chapter on electrostatic precipitator components. Epacica fact sheet dry electrostatic precipitator esp 2 wirepipe type d. An electrostatic precipitator is an air filtration device used primarily in the manufacturing, metal, and mining industries. Wet electrostatic precipitator esp wirepipe type type of technology. Epa452f03028 air pollution control technology fact sheet epacica fact sheet dry electrostatic precipitator esp 1 wireplate type name of technology. A gas stream with particulate material to be removed is introduced between the plates. Monitoring approach the key elements of the monitoring approach, including the indicators to be monitored, indicator ranges, and performance criteria are presented in table a. It is recommended that prototype hthp electrostatic precipitators be applied. Therefore it is mostly used for hotgas dedusting of incineration plants and in metal production.
Nptel provides elearning through online web and video courses various streams. With beth dry electrostatic precipitator filters it is possible to separate finest dust particles from process gases up to a temperature of 790f 420c by artificial electric charging. Electrostatic precipitator manufacturers iqs directory. Monitoring by control technique electrostatic precipitators. A wide variety of home electrostatic precipitator options are available to you, such as ce, ul, and gs. When enough particles collect on surfaces it acts as insulation that can allow the surface of the metal to cool and condense water that can cause corrosion of the duct. Epa452f03029 air pollution control technology fact sheet epacica fact sheet wet electrostatic precipitator esp 1 wirepipe type name of technology. Particulate matter pm, including particulate matter less than or equal to 10. The excellent corona effect ensures optimum charging of particles and a superior constant cleaning efficiency. Gea has been building electrostatic precipitators for cleaning industrial process for over many years. Lesson 1 electrostatic precipitator operation goal to familiarize you with the operation of electrostatic precipitators esps.
Electrostatic precipitator esp upgrades operators of esps can benefit from upgrade solutions to extend lifetime, reduce emissions, and lower maintenance costs. Pdf experimental study of crossflow wet electrostatic. Electrostatic precipitator using weak corona discharge generated by carbon fiber flocking electrodes atsushi katatani dept. The particles are given an electrical charge by forcing them to pass through a corona, a region in which gaseous ions flow. Air quality control systems aqcs electrostatic precipitators esp maximum capacity. An electrostatic precipitator esp removes particles from a gas stream by using electrical energy to charge particles either positively or negatively. The device deploys an induced electrostatic charge to remove dust, smog, and particulate matters from exhaust airgas streams. For many years they are unsurpassed regarding reliability of operation, durability and separation performance.
This model has been evaluated for an electrostatic hthp precipitator following a pressurized fluidized bed combustor at 1089 k and 920 kpa. Secondary voltage and current are monitored in each field and the total power input to each esp is determined. The duct work leading to the precipitator has to have sufficient velocity to keep the particles from falling out of suspension and accumulating on the bottom of the duct. Electrostatic precipitator using weak corona discharge. A wet electrostatic precipitators is a combination of a wet scrubber and an electrostatic precipitator. Electrostatic precipitator smoke precipitator how it workshow to make duration.
Objectives at the end of this lesson, you will be able to do the following. Principle of operation of electrostatic precipitator. Wet electrostatic precipitator fiberglass production acid mist wet electrostatic precipitator petrochemical wet electrostatic precipitator wood products. Presented by the air pollution control division of thermax limited. The most common size diameter for wires is approximately 0.
U speed of air flow d electrodeplate distance half of plate separation distance w plate width height l plate length approach. Concept of air pollution control engineering control 1 control at the source of emission 2 control for receptors e. This module will describe the major components as well as. 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. Wet ash and dry ash system full information duration. We have the process knowledge to provide an optimized solution for your specific needs. Electrostatic air cleaner without blower ry5000 ry5000uvc03 uvc ozone lamp specifications. An electrostatic precipitator, or esp, is one method for removing particulate matter from flue gas. Dry and wet particulate control device baghouse fabric filter wet and dry gas scrubber electrostatic precipitator esp activated carbon adsorption, bed and injection the function of air pollution control devices generally and for the mact eee rule. A precipitator performance model is included to incorporate this data into a high temperature, high pressure precipitator design. Wet and dry esp technologies are in many ways similar but many questions arise as to. Electrostatic precipitator,esp,working principle of esp in hindi,esp in power plant.
How to make an electrostatic generator happy building. Hiroshi hosono engineering department of tunnel ventilation systems. An electrostatic precipitator consists of electrically grounded plates with negativelycharged electrode suspended between them. Meeting todays stringent emission regulations requires a combination of the right environmental technologies. Length 846mm, t5 single end type high output type wattage 75 watts per lamp no of lamps 2 lamp life 9000 hours application odour abatement industrial grade electrostatic air cleaner for collection of dry and wet particulates like dust, oil mist, grease. Electrostatic precipitators esp air quality control. In general, dry esps operat e most effi cientl y with dust resist iviti es between 5 x 103 and 2 x 1010 ohmcm. Learn for free, pay a small fee for exam and get a certificate. In general, the most difficult particles to collect are. Principles of esp operation electrostatic precipitation removes particles from. Above figure shows construction of a typical dry electrostatic precipitator. Dry electrostatic precipitator esp wireplate type type of technology. Part i of the article, which appeared in the april 1988 issue ojapca, discussed theory and sizing. Based on the same trusted technology, the sq300 i hybrid avc has the ability to control either a conventional, singlephase transformer rectifier tr set or a low ripple, 3phase tr set as an integral component of the precipitator control.
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