What is an electrostatic precipitator?

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Answered 2011-03-06 09:36:46

An electrostatic precipitator (ESP) is a piece of equipment that uses high DC voltage to deposit a charge on precipitates passing through it, and a charge of opposite polarity on collector plates that attract and hold the precipitates. The whole process produces an outflow of air or gas that has far less particulate matter in it.

Devices like the ESP are used in different environments to clean air, and are also applied to clean the flue gases coming out of boilers to remove flyash.

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What type of pollution is minimized by electrostatic precipitator and filters in factors?

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How do chimneys in power stations work to attract soot particles?

Chimneys in power stations use electrostatic precipitator to attract soot particles. Electrostatic precipitator are filtration devices that use electromagnetic charges to remove particles from gases.

What is the voltage required for an electrostatic precipitator?

There is a lot of variation in the applied DC voltages that operate an electrostatic precipitator (ESP). Some work on a few thousand volts (a few kV), while big industrial units might run on upwards of 100,000 volts (100 kV).

Why rapping is required in emitting electrode in electrostatic precipitator?

Disloge the fly ash to give hopper bottom side..

What are the four names of applications that use electrostatic principles?

Electrostatic paint sprayer, used for the coat of paint on a car, plane, etc. Photocopier. Electrostatic precipitator, used to clean polluted air. Sorry, I only know three.

How can neutral pollutant particles be made attractive to the charged plate in an electrostatic precipitator?

The positive plate attracts the negative particles to remove them from the gas.

How does a electrostatic precipitator use static electricity?

Inside an electrostatic precipitator some of the electrodes are made to be positively charged and some of them are made to be negatively charged. Usually the voltage between the electrodes is very high. When smoke or other exhaust gases are sent through the precipitator particles in the gas with negative charges tend to go to the positively charged electrodes and positively charged particles go to the negatively charged electrodes. When the particles reach the electrodes many are neutralised and fall to the bottom of the precipitator where they may be collected periodically. Some cling to the electrodes which means that precipitators must be cleaned periodically too.

Why in a electrostatic precipitator high negative voltage given to emitting electrode where as collecting electrode is normally earthed?

electron can easily penetrate in to dust particle

Why do some factories not use an Electrostatic precipitator?

they are highly expensive, they have to be cleaned and maintained, they might seem appealing but the filteration plates need to be replaced often and they are not cheap. -by Paramjot

Electro Static Precipitator What is the effect of moisture in dust particles on efficiency of electro static presipitator?

When moisture in dust particle its is late to ionise the gas as it was dry, so gas late to Ionise meanwhile gas accumulation treatment times fail. So the electrostatic precipitator lass efficient during this.

What has the author J P Gooch written?

J. P. Gooch has written: 'Particulate collection efficiency measurements on an electrostatic precipitator installed on a paper mill recovery boiler' -- subject(s): Measurement, Dust, Paper mills, Pollution, Electrostatic precipitation, Air

How can electrostatic precipitator absorve carbon?

Basically , fine carbon powder can be charged and trapped on plates of Electrostatic precipitators. But one important thing: we must remove those fine carbon powder deposited on the insulator surface. Otherwise, High voltage short circuit will occur.

What are the disadvantages of electrostatic precipitator?

very low system resistance..get affected with load swingdependent upon electricityvery high initial cost is involvedonly handle with dry emmision

What is electro static precipitator esp?

An electrostatic precipitator is a device commonly used to remove fine dust particles from an airstream, or a smokestack exhaust. Often a two step process in which the unwanted particles are first given an electric charge, and then are easily attracted to a precipitate plate which carries an opposite charge. The very fines in smokestacks are an industrial problem, particularly because of their fineness, but they are then easily dealt with.

Where to use bag filter and where to use electrostatic precipitator?

Klean Electrostatic Precipitator (ESP) can be use in all spheres which has problem in smoke. Klean ESP has two basal types. One is Commercial ESP, mainly used in commercial kitchen cooking fume's purification. The other type is Industrial ESP, used in purifying smoke or recycling wasted DOP oil in PVC production lines, such as PVC leather, PVC gloves and PVC wall paper, etc. Also stenters of textile dyeing and finishing can use our Industrial ESP to purify the smoke.

What has the author M F Szabo written?

M. F. Szabo has written: 'Operation and maintenance of particulate control devices on coal-fired utility boilers' -- subject(s): Automatic control, Boilers 'Electrostatic precipitator malfunctions in the electric utility industry' -- subject(s): Electric power-plants, Equipment and supplies, Electrostatic precipitation

What has the author L E Sparks written?

L. E. Sparks has written: 'Particle collection by a venturi scrubber downstream from an electrostatic precipitator' -- subject(s): Electrostatic separators, Venturi scrubber 'Indoor air quality model, version 1.0' -- subject(s): Air quality, Data processing, Indoor air pollution, Measurement 'In-stack plume opacity from electrostatic precipitator/scrubber system at Harrington unit 1' -- subject(s): Electrostatic separators, Scrubber (Chemical technology), Southwestern Public Service Company 'Effect of a flyash conditioning agent on power plant emissions' -- subject(s): Electrostatic precipitation, Fly ash, Power-plants 'Investment analysis with your microcomputer' -- subject(s): Data processing, Investment analysis, Investments, Microcomputers 'IAQ model for Windows, RISK version 1.0' -- subject(s): Computer programs, Handbooks, manuals, Indoor air pollution 'SR-52 programmable calculator programs for Venturi scrubbers and electrostatic precipitators' -- subject(s): Calculators, Electrostatic precipitation, Scrubber (Chemical technology)

Who is the inventor of cottrell precipitator?


Why electrostatic precipitator field tripping related with carbon monoxide analyser?

Besides the toxic effects of carbon monoxide, the gas is very flammable and high concentrations may be explosive...Imagine this at high concentration of CO combined with a spark inside the ESP....

What is a electro static smoke percipitator?

An electrostatic (one word, not two) smoke precipitator is an apparatus which ionises the gas in a space. The ionised gas molecules attract smoke particles which agglomerate and, when they have reached a sufficient size they fall to the ground under their own weight.

How do the electrostatic smoke precipitators work?

It sucks in smoke Smoke is made up of mostly solid substances dispersed in a gas. The electrostatic smoke precipitator generates static electricity, this then gives the solid particles passing through them a negative charge. The particles then pass through to two positively charged conducting plates and, due to their negative charge, they are attracted to the plates where they collect and form a layer.

Why is DC voltage used in an electrostatic precipitator?

We use DC voltages in an electrostatic precipitator (ESP) because it is necessary to induce a charge on the particulates, and then attract them to a plate by the use of an opposite charge. An AC source would be changing constantly. That would leave our particulates picking up "different charges" at different times as they pass the plates. Further, these particulates wouldn't be attracted to the plates because the plates would be changing polarity as well. ESP's use a DC source to apply a charge of a given polarity to the particulates in the air stream, and use a plate of the opposite charge to attract and "hold" the particulates. AC sources can't do that.

What is ESD?

Electrostatic Discharge.Electrostatic Discharge.

How does a electrostatic precipator work?

an electrostatic precipitator is a device in which a dusty air stream is passed through some plates carrying a high voltage. This adds an electric charge to the dust particles. When the air stream then passes close to some plates that are grounded, then the charges attract the dust to the plates, and the dust is captured for disposal.Some furnace processes create a lot of fly ash, and the above device is typically used to capture the dust.

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