NO emission performance assessment on a perforated plate-implemented premixed ammonia-oxygen micro-combustion system

• The flow field is found to vary greatly downstream of the perforated plate. conjugate heat transfer affects NO formation by relocating flame. preferential diffusion intensified due two-dimensionality flow. coupling effect these factors above determines generation rate. present work examines x emission characteristics a premixed micro-combustion system with plate implemented. For this, three-dimensional (3D) computational model involving detailed chemical-kinetic mechanism for ammonia-oxygen combustion in micro-combustor developed. first validated experimental measurements available literature before conducting comprehensive analyses. It that implementing creates recirculation zone characterized low flame temperature and speed. Meanwhile, between products inner combustor walls shown play key role axial direction thus changing chemical reaction Furthermore, caused variation mass diffusivity different species identified significantly comparison case absence plate, especially vicinity zone. This results considerable drop N/O atomic ratio, primarily reduction increase O 2 H O, together less N , consequently affecting confirms field, as well could be regarded potential mechanisms leading zones.