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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)
3.9
Minimum furnace dimensions
The firing rates were set in relation to certified test boilers.
Fig. 6 indicates the diameter and length of the test combustion
chamber.
29.6
23.0
16.5
13.2
9.9
6.6
3.3
1.6
MBtu/hr
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
1 5 . 7
1 9 . 7
2 3 . 6
1.5
760
1000
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 RLS 500/EV FGR:
Output 18500 MBtu/hr: diameter 39.4 inch - length 16.5 ft.
Diameter (inches)
3 1 . 5
3 9 . 4
4 7 . 2
7.5
11.3
18.9
22.7
15
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
i nc h es
D9396
f t
MBtu
ft= 0,12
hr
37870
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
20037168
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