Flue Gas Recirculation (FGR)
Flue gas recirculation (FGR) is a highly effective technique for reducing NOx emissions in various types of combustion processes. In the case of multiple hearth incinerators, FGR systems move flue gas from the feed hearth to a hearth below the volatile burning hearth. Recirculating the flue gas works to reduce NOx in 2 ways:
Click the button below to see the "Method and apparatus for controlling combustion in a furnace" written by the company owner Louis T. Barry to learn more about controlling combustion in the furnace using flue gas recirculation. |
Videos below demonstrate the effect of Flue Gas Recirculation (FGR) on combustion within a Multiple Hearth Furnace.
Combustion without FGR.
Combustion with FGR.
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