Introduction to ESPs: Theory of Operations

All PM either has or can be given a charge “ positive or negative. Let’s suppose we impart a negative charge to all the particles within a gas stream. Then suppose we set up a grounded plate having a positive charge in the same vicinity. What would happen? The negatively charged particle would migrate to the grounded collection plate and be captured due to electrostatic attraction, this is the same phenomenon that causes a balloon to stick to the wall after rubbing it on your hair. As particles collect on the plate, a dust layer would form and accumulate until it was removed with some force that is able to overcome the attractive forces, which we could do by rapping the plate or spraying it with a liquid. Charging, collecting, removing “ that’s the basic idea of an ESP.



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Helpful Resources

KnowledgeBase: Theory of Operations: Charging

KnowledgeBase: Theory of Operations: Collecting

KnowledgeBase: Theory of Operations: Removal

KnowledgeBase: Introduction to ESPs

KnowledgeBase: Major Components Overview

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Optimizing SO3 Systems in Multiple-Unit Plants

Duke Energy Beckjord: SO3

Installing separate SO3 flue gas conditioning systems on two units at Duke Energy's Beckjord Power Plant fixed ongoing struggles to maintain acceptable stack emission levels. Neundorfer provided one of the SO3 systems, and helped Duke Energy save mon ...

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"The greatest benefit is that we can now prevent emissions from ever exceeding established opacity limits, and it does not require our round-the-clock attention."

Alan Burck

Plant Engineer, Duke Energy Beckjord Station

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