Page 112 - Boiler plant and distribution system optimization manual
P. 112
Boiler Tuneup 97
Figure 9.12—The ball flame with considerable swirl Figure 9.14—Flat flame created by very high swirl
for stability, used in cube type combustion cham- number used to avoid flame impingement, to enhance
bers, produces high NO wall radiation and to focus refractory radiation.
x
Figure 9.13—High swirl type flame with intense
mixing. Figure 9.15—Long luminous fire hose type flame for
uniform coverage of long chambers and to reach long
distances. Lower NO output because of delayed
x
and slow diffusion.
