Burner Nozzle Capacity | High Pressure Inspirator
TABLE 5. COMBUSTION AIR CAPACITIES, CFH FOR NORTH AMERICAN PREMIX BURNERS (sold separately see Bulletin 4682) For nozzle capacity in Btu/h HHV, assuming 100% air through the nozzle, multiply figures below by 100. Nozzle can be run rich at air rates below, using secondary air to complete combustion of the excess fuels. Use the burner orifice open area data to find an approximate equivalent North American burner nozzle size when estimating mixer sizing for non-North American premix burners.
Burner Air Flow scfh Mixture Pressure in inches w.c.
Burner Air Flow Nm 3 /h Mixture Pressure in mbar
Burner Orifice Open Area
Burner
Size -0-A -0-B -0-C -1-A -1-B -2-A -2-B -2-C -2-D -3-A -3-B -4-A -4-B -4-C -5-A -5-B -6-A -6-B -6-C -7-A -7-B -7-C -8-A -8-B -8-C -8-D
Inch 2 0.150 0.191 0.214 0.283 0.325 0.445 0.497 0.572 0.612 0.719 0.835
(cm 2 ) 0.968
1
2
3
4
2.5
5.0
7.5
10.0 10.42 13.37 15.24 18.71 23.52 29.94 34.75 41.70 47.04
200 250 280 350 440 560 650 780
280 350 400 490 620 790 920 1100
340 430 490 600 760 960 1120 1340 1510 1690 2060 2580 3280 3530 4220 5000 5500 6600 7300 8500
390 500 570 700 880 1120 1300 1560 1760 1960 2400 3000 3800 4100 4900 5800 6400 7700 8500 9500
5.35 6.68 7.48 9.36
7.48 9.36 10.69 13.10 16.57 21.12 24.59 29.40 33.15 36.89 45.17 56.7 71.6 77.2 92.2 109.6
9.09 11.49 13.10 16.04 20.31 25.66 29.94 35.82 40.36 45.17
1.24 1.38 1.83 2.10 2.87 3.21 3.69 3.95 4.64 5.39 7.08 8.59 9.40 11.3 13.2 14.2 17.5 18.7 21.8 27.2 31.7 58.0 69.6 92.5 95.5
11.76 14.97 17.37 20.85 23.52 26.20 32.08 40.10
880 980 1200 1500 1900 2050 2450 2900 3200 3850 4250 4750 6000 7050
1240 1380 1690 2120 2680 2890 3450 4100 4510 5450 6000 6700 8450 9950
52.4 64.2 80.2
55.1
1.10 1.33 1.46 1.76 2.05 2.20
69.0 87.7 94.4 113 134 147 176 195 227 275 323 486 601 834 994 1737 6.01 11.57
50.8 54.8 65.5 77.5 85.5
102 110 131 155
121
171
2.71
103 114 127 160 188 281 347 481 575
146 160 179 226 266 396 492 682 807 1417 4.89 9.36
206 227 254 321 377 561 695 962 1149 2018
2.89 3.39 4.22 4.91 9.00 10.8 14.3 14.8 23.3 0.115 0.199
10 300 12 100 18 200
12 000 14 100 21 000
10 500 14 800 13 000 18 400 18 000 25 500 21 500 30 200 37 700 53 000
22 500 26 000 31 200 36 000 37 200 43 000 65 000 75 500
-9
150
1008 3.47 6.68
4651-01 4651-0
0.743
130 250
183 350
225 433
260 500
6.9 13.4
1.28
For more information on North American premix burner nozzles see: Sheet 4600-1 Bulletin 4659 Sheets 4651-1 and 4651-2 Bulletin 4682
Bulletin 3070 Page 6
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