The Two-Stage Lagrangian turbulent jet reaction model is described, an
d results presented for NOx emissions from methane, CO-H-2, and hydrog
en jet flames for a variety of conditions. The model includes complete
chemical reaction mechanisms and treats the effects of buoyancy and r
adiation, the influences of which are shown to be significant. Non-equ
ilibrium chemistry influences are also examined. The extensive compari
sons made between the model and experimental results for the three fue
ls suggest that the model incorporates the essential processes that co
ntrol NOx production in fuel jet flames. (C) 1998 by The Combustion In
stitute.