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4.4
Burner dimensions
189
106
140
168
4.5
Firing rates
The burner delivery must be selected within area of the diagrams
(Fig. 3). This area is called firing rates and provides the maximum
delivery of the burner in relation to the pressure in the combustion
chamber.
The work point may be found by plotting a vertical line from the
desired delivery and a horizontal line from the pressure in the
3.20
2.80
2.40
2.00
1.60
1.20
0.80
0.40
0.00
-0.40
5.4
4.4
51
61
Technical description of the burner
163
BF
6.4
7.4
71
81
91
167
D1844
combustion chamber. The intersection of these two lines is the
work point which must lie within the firing rates.
The firing rate area values have been obtained
considering a surrounding temperature of 20 °C,
and an atmospheric pressure of 1013 mbar (ap-
prox. 0 m above sea level) and with the combus-
WARNING
tion head adjusted as shown on page 19.
D11537
CF
8.4
9.4
10.4
101
111
121
9
GB
111
253
32
Fuel output - kg/h
Thermal power - kW
Fig. 2
Fig. 3
20038579
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