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Technical presentation

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Information about Technical presentation
Education

Published on December 20, 2008

Author: Worcester

Source: slideshare.net

Description

English language technical presentation given by Finnish engineering students
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Electrostatic precipitators (ESP) Matti Rinne-Kanto & Mikko Vihanto 06I252 TAMK University of Applied Sciences 7 June 2009

This presentation introduces how ESPs work and where they are used Operational principle Precipitator types Applications and conclusion

Precipitator types

This presentation introduces how ESPs work and where they are used Operational principle Precipitator types Applications and conclusion

Precipitator types

A row of electrodes A stack of metal plates Gravity drops particles into the hopper The ionized particles moves to the grounded plates Incoming air stream Cleaned air The precipitator’s operational principle uses negative voltage to ionize particles A negative voltage of several kVs is applied

This presentation introduces how ESPs work and where they are used Operational principle Precipitator types Applications and conclusion

Precipitator types

ESPs can be divided into three groups: plate precipitators, wet ESPs and modern industrial ESPs Plate precipitators - Cheapest and most simple - The plate and wire assembly can vary in different solutions - The lowest efficiency, but still reasonable for most applications

Wet ESPs - The most expensive and the most complex - Disposal of the laden water is a problem - Water helps reducing the electrical resistance of the incoming particles to make the process more effective ESPs can be divided into three groups: plate precipitators, wet ESPs and modern industrial ESPs

Modern industrial ESPs - S harpened spikes are attached to maximize corona production - Modern automation minimizes sparking and avoids damaging components - Uses voltages of 50–100 kV ESPs can be divided into three groups: plate precipitators, wet ESPs and modern industrial ESPs

This presentation introduces how ESPs work and where they are used Operational principle Precipitator types Applications and conclusion

Precipitator types

ESPs have applications in the field of industry and customer oriented applications - Cleaning combustion gases and reducing VOC emissions at different kind of factories Industry

- Electrostatic channel filters - Electrostatic air cleaners Used on ventilation machines - Maximum air capacity Removes indoor impurities at 99,8 % efficiency Limitations: Need of maintenance (cleaning, etc.) Used on offices and large rooms ESPs have applications in the field of industry and customer oriented applications

Used on ventilation machines

Removes indoor impurities at

99,8 % efficiency

Limitations:

Need of maintenance

(cleaning, etc.)

+ Can be used in a wide area in industry and in other applications + Operational principle is simple ESPs have advantages and disadvantages + Good example of a device designed by electrical engineers to help the environment - Efficiency is dependent of the electrical properties of the particles - Limitations of usage, maintenance and production

This presentation introduced how ESPs work and where they are used Operational principle Precipitator types Applications and conclusion Questions???

Precipitator types

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