Rehabilitating or upgrading existing ESPs is a cost-effective way of enhancing performance, restoring efficiency in ageing equipment, and ensuring compliance with particulate emission standards.

  • Enhances performance and efficiency
  • Minimizes capital expenditure of new equipment
  • Decreases equipment downtime by reducing outage requirements
  • Turnkey retrofit and rebuild available

Fuel Tech’s upgrades or retrofits are custom-designed to fit the physical layout of the existing ESP shell. In most cases, the original equipment can be upgraded with the latest mechanical and electrical systems for optimal efficiency.

ESP upgrade options

  • Plate replacement
  • Retrofit wires with Rigid Discharge Electrodes (RDEs)
  • Improved power and sectionalization of high voltage systems
  • Improved rapping systems
  • Hot-to-cold ESP conversion design
  • Improved flow distribution
  • Guaranteed performance

ESP retrofit options

  • Components custom-designed to fit each application
  • Custom components are installed in all OEM configurations
  • 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

Configurations featuring wide plate spacing (12-16 inch) with rigid discharge electrode (RDE) designs have proven highly effective in both partial and complete retrofits. Additionally, incorporating a flue gas conditioning (FGC) system can further enhance ESP performance, particularly when dealing with high fly ash resistivity. Fuel Tech’s expertise in physical and CFD modeling, combined with our proprietary numerical-based ESP performance modeling, forms a strong foundation for guaranteed performance. This approach is particularly valuable for ESPs used in conjunction with dry sorbent injection (DSI) systems for control of sulfur dioxide, hydrogen chloride or mercury, as well as those facing particulate emission challenges due to use of low-rank fuels.

Contact Fuel Tech today to learn how your ESP systems can be upgraded or retrofitted to improve efficiency and meet compliance targets.