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1702487 
Journal Article 
Effects of bluff-body burner and coal particle size on NOx emissions and burnout 
Xiao, LS; Cheng, JF; Zeng, HC 
1999 
Yes 
Journal of the Energy Institute
ISSN: 1743-9671
EISSN: 1746-0220 
72 
493 
112-116 
WOS:000087693100001 
Investigations on air staging have been carried out using various coals with different degrees of fineness and a variety of burners with a 92.9 kw h(-1) tunnel furnace burning pulverized coal. It has been observed that using the bluff-body burner can reduce both the unburned carbon in fly ash and NOx emissions in the case of air staging. The experimental results show that air-staging combustion has a more remarkable effect on NOx reduction for higher-volatile coal than for lower-volatile coal. The results also show that there is a strong influence of coal particle size on NOx emissions and unburned carbon in the fly ash in the case of air staging.