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Additive Manufacturing-Enabled Low-Cost Particle Detector

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Novel hybrid composite discharge electrode for electrostatic precipitator.

M Ali¹, K Alam¹, Y T A Al-Majali¹

¹a Electrostatic Precipitator Laboratory, Department of Mechanical Engineering , Ohio University , Athens , OH , USA.

Journal of the Air & Waste Management Association (1995)

|May 26, 2017

Summary

A new hybrid composite electrode offers a lightweight, corrosion-resistant alternative for electrostatic precipitators (ESPs). This innovative design provides comparable or superior performance to traditional metal electrodes, reducing costs and ozone generation in air pollution control.

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Area of Science:

Environmental Engineering
Materials Science
Electrochemistry

Background:

Electrostatic precipitators (ESPs) are crucial for controlling air pollution from coal-fired power plants.
Discharge electrodes significantly impact ESP collection efficiency.
Traditional metal electrodes in wet ESPs are expensive and prone to corrosion.

Purpose of the Study:

To introduce and evaluate a novel hybrid composite electrode (HCE) as a substitute for metal electrodes in wet ESPs.
To assess the electrical performance and physical properties of the HCE.
To compare the HCE's effectiveness against conventional metal electrodes.

Main Methods:

Fabrication of HCEs using carbon fiber composites and metal mesh in a tape shape.
Experimental evaluation of electrical response under atmospheric conditions with high voltage (50 kV).
Comparative analysis of HCE performance against traditional metal electrodes.

Main Results:

HCEs demonstrated uniform corona generation at comparable power levels to metal electrodes.
HCEs exhibited lower corona onset voltage compared to metal electrodes.
The hybrid composite electrodes were found to be compact, lightweight, and highly corrosion-resistant.

Conclusions:

The novel hybrid composite electrode shows significant potential to replace expensive metal electrodes in wet ESPs.
HCEs offer comparable or superior electrical performance with added benefits of lower cost and reduced ozone generation.
This innovation presents a promising, inexpensive solution for enhancing air pollution control efficiency.