Study of NO(sub x) reduction by fuel injection recirculation. Topical report, June--December, 1995

摘要

Flue-gas recirculation (FGR) is a well-known method used to control oxides of nitrogen (NOx) in industrial burner applications. Fuel injection recirculation (FIR) is more effective than windbox FGR is quite remarkable, however, there is no definitive understanding of why FIR is more effective than conventional FGR. The objective of this research is to ascertain whether or not chemical and/or molecular transport effects alone can explain the differences in NOx reduction observed between FIR and FGR. This report discusses computer modeling studies of counterflow diffusion flames employing detailed chemical kinetics for methane combustion and NOx formation and experimental studies of laminar, CH4-air, jet flames.