Insight into the inner structure of stretched premixed ammonia-air flames

Ammonia as a fuel has sparked significant interest in the combustion community. Although, using ammonia lot of advantages including no carbon emissions, ammonia-air flames are characterized thick with low flame speeds. It is important to understand structure know process better. Flame thickness an property which characterizes reactivity flame. Identifying preheat zone necessary determine fresh gas surface used speed. Also, understanding behavior species emitted helps demonstrate reaction pathway may be implemented chemical kinetics schemes. Further, it interesting effect curvature on emission excited gives direct knowledge influence reactivity. was seen that change manifested species. The experiments presented here were performed Bunsen burner at atmospheric conditions. laminar speeds have been evaluated over range equivalence ratios by choosing isotherm specified definition speed slightly higher than values obtained from literature. Chemiluminescence NH* and NH2* studied for different ratios. A 1D simulation Chemkin-Pro-was compare counterpart non-excited This comparison correlate also define Both determined heat release rate markers.