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Electrostatic Precipitators (ESP)

Fuel Tech Air Pollution Control TechnologiesElectrostatic Precipitators (ESP)

Expertise from Experience in ESP Retrofits and Upgrades

Enhance ESP Performance and Efficiency

Electrostatic Precipitation - Fuel Tech Shop Fabrication

The rehabilitation of existing Electrostatic Precipitators (ESP) is a cost-effective means of improving the performance and restoring efficiency of aging equipment as well as achieving compliance in meeting particulate emission levels.






Retrofits Have Several Benefits:

  • Minimizes capital expenditures
  • Eliminates risks from new equipment start up
  • Simpler integration into the balance of plant
  • Decreases equipment downtime by keeping outage requirements as short as possible

Fuel Tech Experience & Capabilities

  • Turnkey retrofits and rebuilds
  • Project specification and development
  • Engineering studies
  • Project management
  • Construction services
  • Precipitator inspections
  • More than 35,000 MW of experience


Fuel Tech ESP Design Expertise

ESP DesignThe designed system generally matches the physical layout of the existing ESP shell. In most cases, the original equipment can be enhanced with improved mechanical and electrical systems, including:

  • Collecting plates
  • Discharge electrodes
  • Electrical sectionalization
  • Power supplies and controls
  • Rapping systems


Unique ESP Capabilities and Approach

Additionally, configurations utilizing wide plate spacing (12"-16") with rigid discharge electrode (RDE) configurations have been very successful in both partial and complete retrofits. The addition of a flue gas conditioning (FGC) system may also be considered to further improve ESP performance guarantees in the case of high flyash resistivity.

Expertise in physical and computational fluid dynamic (CFD) modeling capabilities complement Fuel Tech’s proprietary, numerical based ESP performance modeling, which is the basis for determining performance guarantees. This includes ESPs where DSI systems for SO2, HCl or mercury control may require improved performance or where low-rank fuels create particulate emissions challenges.


ESP UpgradesESP Fuel Tech Upgrades

  • Plate replacement
  • Retrofit wires with Rigid Discharge Electrodes (RDE)
  • Improved Power and Sectionalization of HV Systems
  • Improved Rapping Systems
  • Hot-to-Cold ESP conversion design
  • Improved flow distribution
  • Guaranteed performance


ESP RetrofitsESP Fuel Tech Retrofits

  • Components custom designed to fit each application
  • Custom components are installed in all OEM designs
  • Guaranteed performance
  • Typical retrofit includes wide plate spacing with assembled panel plates and rigid discharge electrodes
  • Retrofits successfully performed on both hot-side and cold-side ESPs