43
5 Commissioning
5.3.1 Adjusting the GFI 48 Flame Quality and Flame Stability
The following graphic shows the air volume flow to be adjusted in [m
3
/h] in dependence on the
desired gas pre-pressure in [mbar] and/or the thermal power in [kW]. The gas pre-pressure is
to be recorded at the measurement socket for gas.
Fig. 5-16 Air volume flow to be set
Reference value table
The reference value table shows the values of the air pressure in [mbar] for the air volume flow
in [m3/h] determined in the diagram.
1 Gas pre-pressure in [mbar] 4 Stability field in free self-sustaining com-
bustion
2 Thermal power in [kW] 5 Ideal line
3 Air volume flow in [m
3
/h]
Outer tube
length
Combustion air
30 m
3
/h
(39.23 yd
3
/h)
40 m
3
/h
(52.31 yd
3
/h)
50 m
3
/h
(65.39 yd
3
/h)
60 m
3
/h
(78.47 yd
3
/h)
1,000 mm
(39,37 in)
6 mbar
(0.087 psi)
10 mbar
(0.14 psi)
15 mbar
(0.21 psi)
20 mbar
(0.29 psi)
2,000 mm
(78,74 in)
8 mbar
(0.11 psi)
14 mbar
(0.20 psi)
21 mbar
(0.30 psi)
28 mbar
(0.40 psi)
3,000 mm
(118,11 in)
10 mbar
(0.14 psi)
18 mbar
(0.26 psi)
28 mbar
(0.40 psi)
37 mbar
(0.53 psi)
4,000 mm
(157,48 in)
12 mbar
(0.17 psi)
22 mbar
(0.32 psi)
34 mbar
(0.49 psi)
45 mbar
(0.65 psi)
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General