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Electrostatic precipitators (ESP)
Matti Rinne-Kanto & Mikko Vihanto06I252TAMK University of Applied Sciences
13 April 2023
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This presentation introduces how ESPs work and where they are used
Operational principle
Precipitator types
Applications and conclusion
![Page 3: Technical presentation](https://reader035.vdocuments.us/reader035/viewer/2022062514/55855b48d8b42a47518b524a/html5/thumbnails/3.jpg)
This presentation introduces how ESPs work and where they are used
Operational principle
Precipitator types
Applications and conclusion
![Page 4: Technical presentation](https://reader035.vdocuments.us/reader035/viewer/2022062514/55855b48d8b42a47518b524a/html5/thumbnails/4.jpg)
A row of electrodes
A stack of metal plates
Gravity drops particles into the hopper
The ionized particles moves to the grounded plates
Inco
min
g a
ir s
trea
m
Cle
aned
air
The precipitator’s operational principle uses negative voltage
to ionize particles
A negative voltage of several kVs is applied
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This presentation introduces how ESPs work and where they are used
Operational principle
Precipitator types
Applications and conclusion
![Page 6: Technical presentation](https://reader035.vdocuments.us/reader035/viewer/2022062514/55855b48d8b42a47518b524a/html5/thumbnails/6.jpg)
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
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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
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Modern industrial ESPs
- Sharpened 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
![Page 9: Technical presentation](https://reader035.vdocuments.us/reader035/viewer/2022062514/55855b48d8b42a47518b524a/html5/thumbnails/9.jpg)
This presentation introduces how ESPs work and where they are used
Operational principle
Precipitator types
Applications and conclusion
![Page 10: Technical presentation](https://reader035.vdocuments.us/reader035/viewer/2022062514/55855b48d8b42a47518b524a/html5/thumbnails/10.jpg)
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
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- 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
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+ 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
![Page 13: Technical presentation](https://reader035.vdocuments.us/reader035/viewer/2022062514/55855b48d8b42a47518b524a/html5/thumbnails/13.jpg)
This presentation introduced how ESPs work and where they are used
Operational principle
Precipitator types
Applications
and conclusion
Questions???