8
CHAPTER
2
Burner description
2.6
Gas side pressure drop
6
mbar
KW
0 1000 2000 4000 6000
12
18
24
26
G
2
0
G
2
5
0 1000 2000 4000 6000 8000
60
50
40
30
20
10
mbar
KW
G2
0
G2
5
Gas pressure on the basis of
the maximum output developed
by the burner is given by the
curves in Fig. 8.
It represents the pressure drop
in the combustion head.
Natural gas G 20 - Net calorific
value = 10 kWh/Nm
3
The curves were taken in the
following conditions:
•
pressure measured at the
test point on the pressure
switch downstream from the
gas butterfly valve;
•
combustion chamber at 0
mbar;
•
burner working at full out-
put.
The pressure drop of the com-
pletely open butterfly valve is
given in Fig. 9.
D8257
Butterfly valve pressure drop
D8258
Pb
(Burner output)
[kW]
Fig. 8
Head pressure drop
p
[mbar]
Pb
(Burner output)
[kW]
Fig. 9
p
[mbar]
Summary of Contents for DB 4 SM BLU
Page 2: ......
Page 39: ...1...
Page 48: ...10 4 4 1 D7543 C GF HPG LPG MM PA PGM PGm RG SRV VE VPS VR VS 0 5 4 bar 500 mbar 12...
Page 49: ...11 4 4 2 DANGER WARNING MB PA PGM SM SO TA TB D7904 13...
Page 51: ...13 5 5 3 1 4 2 3 5 6 7 1 2 0 3 20 4 5 20 130 1 4 5 4 130 19 18 D1500 3 2 4 1 19 1 2 3 4 D1499...
Page 52: ...14 5 MAN 3 1 130 90 2 19 2 19 20 2 2...
Page 54: ...16 5 5 7 6 A 100 A 5 8 1 2 3 4 5 1 2 3 4 5 6 D3097 23 A...
Page 55: ...17 6 6 1 1 2 3 VR VR VS VR WARNING DANGER...
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