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2
CORRECTED BURNER AIR PRESSURE ACCORDING TO ALTITUDE
m a.s.l.
Rated Pressure
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
5.50
6.00
6.50
7.00
7.50
8.00
8.50
9.00
9.50
10.00
Average barometric
pressure (20°C)
Average barometric
pressure (68°F)
3.10 Minimum furnace dimensions
The firing rates were set in relation to certified test boilers.
In the Fig. 6 indicates the diameter and length of the test combus-
tion chamber.
Technical description of the burner
0
100
ft a.s.l
0
328
0.49
0.50
0.99
1.00
1.48
1.50
1.97
2.00
2.47
2.50
2.96
3.00
3.46
3.50
3.95
4.00
4.44
4.50
4.94
5.00
5.43
5.50
5.92
6.00
6.42
6.50
6.91
7.00
7.40
7.50
7.90
8.00
8.39
8.50
8.88
9.00
9.38
9.50
9.87
10.00
mbar
1013
1000
"w.c.
399
394
Diameter (inch)
Altitude
305
610
915
1000
2000
3000
0.51
0.53
0.55
1.02
1.06
1.10
1.53
1.59
1.65
2.05
2.12
2.20
2.56
2.65
2.75
3.07
3.18
3.30
3.58
3.71
3.85
4.09
4.24
4.40
4.60
4.77
4.95
5.12
5.30
5.51
5.63
5.83
6.06
6.14
6.36
6.61
6.65
6.89
7.16
7.16
7.42
7.71
7.67
7.96
8.26
8.18
8.49
8.81
8.70
9.02
9.36
9.21
9.55
9.91
9.72
10.08
10.46
10.23
10.61
11.01
977.4
942.8
908.2
385
371
358
Example
Output 2579 MBtu/hr: diameter 24 inch - length 6.6 ft.
13
GB
1220
1525
1830
4000
5000
6000
0.57
0.59
0.62
1.14
1.19
1.23
1.71
1.78
1.85
2.28
2.37
2.46
2.85
2.96
3.08
3.43
3.56
3.70
4.00
4.15
4.31
4.57
4.74
4.93
5.14
5.33
5.54
5.71
5.93
6.16
6.28
6.52
6.77
6.85
7.11
7.39
7.42
7.71
8.01
7.99
8.30
8.62
8.56
8.89
9.24
9.13
9.48
9.85
9.71
10.08
10.47
10.28
10.67
11.09
10.85
11.26
11.70
11.42
11.86
12.32
875.8
843.5
811.85
345
332
320
D2919
2135
2440
7000
8000
0.64
0.67
1.28
1.34
1.92
2.01
2.56
2.67
3.21
3.34
3.85
4.01
4.49
4.68
5.13
5.35
5.77
6.02
6.41
6.69
7.05
7.35
7.69
8.02
8.34
8.69
8.98
9.36
9.62
10.03
10.26
10.70
10.90
11.37
11.54
12.04
12.18
12.70
12.82
13.37
779.8
747.8
307
294
Fig. 6
20103379
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