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Transcript of Technical Presentation
Electrostatic precipitators (ESP)
Matti Rinne-Kanto & Mikko Vihanto06I252TAMK University of Applied Sciences
12 April 2023
This presentation introduces how ESPs work and where they are used
Operational principle
Precipitator types
Applications and conclusion
This presentation introduces how ESPs work and where they are used
Operational principle
Precipitator types
Applications and conclusion
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
This presentation introduces how ESPs work and where they are used
Operational principle
Precipitator types
Applications and conclusion
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
- 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
This presentation introduces how ESPs work and where they are used
Operational principle
Precipitator types
Applications and conclusion
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
+ 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???