On the influence of the char gasification reactions on NO formation in flameless coal combustion

Progress and recent trend in MILD combustion

“…Weber et al [70,71] and Zhang et al [49] investigated the MILD combustion of the pulverized-coal fuel and confirmed the possibility of occurrence of coal MILD combustion. Stadler et al [72,73] investigated the formation mechanisms of NO x for coal combustion under the MILD mode and, especially, the influence of char combustion and gasification on NO x formation. Recently Dally et al [22] have successfully achieved MILD combustion of firing sawdust in a lab-scale furnace.…”

Influence of turbulence–chemical interaction on CFD pulverized coal MILD combustion modeling

“…Experimental tests and numerical simulations were carried out at the RWTH laboratory of Aachen University and at the Institute of Process Engineering and Power Plant Technology (IVD) of Stuttgart University [4][5][6][7][8] in Germany. The conceptual design of high temperature air combustion (HTAC) supercritical pulverized coal boiler was recently proposed by Schaffel-Mancini et al [9].…”

Numerical study of H 2 O addition effects on pulverized coal oxy-MILD combustion

“…The applications also indicate a higher thermal efficiency under oxy-MILD combustion than conventional oxy-fuel combustion or air-MILD combustion. As for coal oxy-MILD combustion, the corresponding studies are quite sparse, however, the latest literatures still can be found elsewhere [32][33][34][35][36].…”

“…They found a slight decrease in NO emission when reducing oxidizer oxygen concentration, and considered it the result of lower temperature peak and intensified internal recirculation. Moreover, Stadler et al [33] numerically studied the influence of char gasification reactions by CO 2 and H 2 O on NO formation under coal MILD combustion. Their results showed that the increased gasification by CO 2 and H 2 O could make some difference in the NO X reduction during coal MILD combustion.…”