Stokers

REI provides research and consulting services for a variety of stoker applications. Projects have focused on evaluating stoker performance, emissions and operating challenges. REI provides modeling analyses for both spreader and mass-burn designs with an emphasis on developing practical solutions for a range of issues including the following:

  • Spout/spreader design

  • Overfire air injection design

  • FGR system design

  • Water injection for thermal NOx control

  • NOx and CO emission evaluations

  • Bed fragmentation, re-entrainment, and carbon-in-flyash

  • Cinder re-injection impacts

  • Extent of combustion in bed

  • Deposition and corrosion evaluations

  • Evaluations of temperature/oxygen concentration/residence time criteria

Through a strategic relationship with Detroit Stoker Company, REI has developed unique tools for application to spreader stokers. In addition to the applications listed here, REI continues to develop expertise in new areas. If your application is not among those listed, please contact us to discuss appropriate ways we may be able to work together.

Project Summaries

WOOD-FIRED STOKER BOILER

REI’s combustion simulation tools, along with validated descriptions of Detroit Stoker Company spreaders, was used to create an accurate description of fuel location and reaction in a stoker boiler fired with waste wood. This information was integrated with the detailed model of the boiler to determine whether or not combustion products had experienced sufficient residence time (1) under oxidizing conditions and (2) at temperatures above 850 degrees Celsius to achieve design goals.