chapter  26
14 Pages

THE ROLE OF FLAME-WALL THERMAL INTERACTIONS IN FLAME STABILITY AND POLLUTANT EMISSIONS

Flames interact with the walls of a combustor through various mechanisms,

which aects ame stability and pollutant emissions. For example, thermal

quenching by cold walls in internal combustion engines can cause an increase

energy exchange at the wall can decrease ame temperatures resulting in low

NO

x

emissions. This concept may lead, for some applications, to an alternative

homogeneous combustion process (surface assisted) for NO

x

reduction at the

source. Now the role of surface-stabilized ame{wall thermal interactions, in

both reduction of NO

x

and ame stability, is not well understood.