OCR Text |
Show Schematic of LNI Burner POC recirculation Figure 3 All combustion takes place within the furnace, not inside the tile port, providing short high temperature residence times that further inhibit N O x production. After combustion, the gases lose their heat through radiation and convective heat transfer to the work. These cooled gases travel throughout the furnace and are again entrained by the burner oxidant and fuel jets, sustaining the N O x inhibiting process. Separated high velocity oxidant and gas jets can reduce the combustion system N O x emissions by as much as 9 0 %. LNI Burner Development Developing LNI for commercial applications requires selecting parameters of burner geometry that will provide the lowest possible N O x and C O emissions, maintain or enhance the capability of the bumer(s) to heat the furnace and load, provide safe and reliable operation of the furnace, all with minimum impact on capital and operating costs. 5 |