OCR Text |
Show 1200 ,-------___ --, { 1000 ~IOO • JZ S lOG u ~ 400 Z 200 -2 0 2 • • • 10 Axial Centreline Distance crna Ca) 1200 roo ~oo ~ 5'00 u ~400 Z 200 • ~.. v· .~ ·2 0 4 10 Axial Cen~ine Distance crna (b) 1000 {IOO , • I. ~ ~, :2100 I i JC • 0 I ~400 I Z 200 ~ 0 .J \ .:l 0 2 • • • 10 Axial c.ntrenne Distance (e) Figure 9 Baseline NO simulation: (a) conventional swirl burner, (b) conventional swirl burner without spreader, and (c) low NOx (FSR) burner 1400 -r----;:;-----------, 1200 E !1OOO -1100 ;c 0 100 i400 at o+-~--__ ~--~~--~ -2 0 2 • • • 10 Axial C.ntnllne Distance crna (.) 1400 ~-~------_, 200 O+-~--~~--__ -,--~ ~ 0 2 • • • 10 Axial Centreline Distance em) (b) 1000 ....--------------------. EIOO Q. ~ ~IOO ';( o ~400 -= Z at I , r..-----~ JI. i • I J\ O+-~~~~---~--~ -2 o 2 • • • 10 AxIal c.ntretlne Distance (c) Figure 10 NO simulation showing the effect of ammonia as a NOx precursor: (a) conventional swirl burner, (b) conventional swirl burner without spreader, and (c) low NOx (FSR) burner 1200 ......------------------., 1200 1000 .....-------------------, e1000 Q. ~IOO -I • ~IOO ~400 Z 200 200 -2 0 2 • • • 10 O~~~~~-~~~ .:l 0 2 • • • 10 o+-~--__ ~--~---,~~ .:l 0 2 • • • 10 Axial Centreline Distance em) Axial Centreline Distance Cm) Axial Centreline Distance Ca) (b) Cc) Figure 11 NO simulation showing the effect of hydrocarbons and ammonia: (a) conventional swirl burner. (b) conventional swirl burner without spreader, and (c) low NOx (FSR) burner 15 |