10
Bentone BF1
General
2.2 Recommended nozzles and pressures
Because of the different types of boiler in existence, with varying furnace
geometries and furnace loads, it is not possible to commit to any given spray
angle or spay pattern. Note that spray angles and spray patterns change
with pump pressures.
Nozzle
60° Solid/Hollow cone
80° Solid/Hollow conel
Pump pressure
10 bar (8–14 bar) Fuel oil 1
10 bar (7–12 bar) Kerosene
2.3 Nozzle table, 7-15 bar
2.3.1 Burner with preheater
Allow for a reduction in oil quantity of 5–20% with preheating owing to:
• Temperature increases at the nozzle.
• Nozzle design.
• Capacity (the higher the capacity the lower the difference).
Pump pressure, bar
The table applies to oils with a viscosity of 4.4 mm
2
/s (cSt) at a density of 830 kg/m
3
.
Gph
7
8
9
10
11
12
13
14
15
kg/h
kW
kg/h
kW
kg/h
kW
kg/h
kW
kg/h
kW
kg/h
kW
kg/h
kW
kg/h
kW
kg/h
kW
0,35 1,13
13
1,21
14
1,28
15
1,35
16
1,42
17
1,48
17
1,54
18
1,60
19
1,65
19
0,40 1,22
14
1,33
16
1,41
17
1,49
18
1,56
18
1,63
19
1,70
20
1,76
21
1,82
21
0,50 1,56
18
1,66
20
1,76
21
1,86
22
1,95
23
2,04
24
2,12
25
2,20
26
2,28
27
0,60 1,98
23
2,00
24
2,12
25
2,23
26
2,34
28
2,45
29
2,55
30
2,64
31
2,73
32
0,65 2,23
26
2,16
26
2,29
27
2,42
29
2,54
30
2,65
31
2,75
33
2,86
34
2,96
35
0,75 2,46
29
2,49
29
2,65
31
2,79
33
2,93
35
3,08
36
3,18
38
3,30
39
3,42
40
0,85 2,77
32
2,83
33
3,00
36
3,16
37
3,32
39
3,47
41
3,61
43
3,74
44
3,87
46
1,00 3,11
37
3,33
39
3,53
42
3,72
44
3,90
46
4,08
48
4,24
50
4,40
52
4,56
54
1,10 3,55
42
3,66
43
3,88
46
4,09
48
4,29
51
4,48
53
4,67
55
4,84
57
5,01
59
1,20 3,72
44
3,99
47
4,24
50
4,47
53
4,68
55
4,89
58
5,09
60
5,29
63
5,47
65
1,25 3,94
47
4,16
49
4,40
52
4,65
55
4,88
58
5,10
60
5,30
63
5,51
65
5,70
68
1,35 4,33
51
4,49
53
4,76
56
5,02
59
5,27
62
5,50
65
5,73
68
5,95
70
6,15
73
1,50 4,89
58
4,98
59
5,29
63
5,58
66
5,85
69
6,11
72
6,36
75
6,60
78
6,83
81
1,65 5,09
60
5,49
65
5,82
69
6,14
73
6,44
76
6,73
80
7,00
83
7,27
86
7,52
89
1,75 5,48
65
5,82
69
6,18
73
6,51
77
6,83
81
7,14
85
7,42
88
7,71
91
7,97
94
2,00 6,21
74
6,65
79
7,06
84
7,45
88
7,81
93
8,18
97
8,49
101
8,81
104
9,12
108
2,25 6,99
83
7,49
89
7,94
94
8,38
99
8,78
104
9,18
109
9,55
113
9,91
117 10,26 122
2,50 7,77
92
8,31
98
8,81
104
9,29
110
9,74
115 10,18 121 10,59 126 10,99 130 11,38 135
2,75 8,78 104 9,39
111
9,96
118 10,50 124 11,01 131 11,50 136 11,97 142 12,42 147 12,86 152
3,00 9,71 115 10,38 123 11,00 130 11,60 137 12,17 144 12,71 151 13,23 157 13,73 163 14,21 168
4,00 11,88 141 12,70 150 13,47 160 14,20 168 14,89 176 15,56 184 16,19 192 16,80 199 17,39 206
