Table of Contents
Advertisement
Available languages
Available languages
3.10
Air side pressure drop (detected upline of the damper with complete opening)
80
70
60
50
40
30
20
10
0
The pressure curves refer to the combustion head adjustment
conditions according. In the event that the supplied air has a tem-
perature greater than 20°C and/or an altitude greater than 100 m.
Altitude
m. a.s.l.
0
20
0
0.920
0.988
100
0.932
1.000
500
0.976
1.047
750
1.007
1.080
1000
1.038
1.114
1250
1.069
1.147
1500
1.102
1.182
1750
1.130
1.213
2000
1.174
1.260
2250
1.206
1.294
2500
1.251
1.343
2750
1.284
1.378
3000
1.320
1.417
Example:
Burnt output = 9000 kW - Altitude = 750 m. a.s.l. - Combustion air
temperature = 120 °C
From the diagram, for an output of 9000 kW, the total pressure
drop obtained at the head is equal to: p
tion air at 20 °C and 100 m. a.s.l. altitude).
In Tab. F there is a multiplier coefficient, for combustion air at
120 °C and an altitude of 750 m. s.l.m., equal to Kc = 1.449.
The total pressure drop of the burner head is:
p = p
x K
= 20 x 1.449 = 29 mbar.
20
c
20155221
Technical description of the burner
2000
4000
6000
8000
Burner output - Pb
30
40
50
1.021
1.055
1.089
1.034
1.069
1.103
1.083
1.119
1.155
1.117
1.154
1.191
1.152
1.190
1.228
1.186
1.226
1.265
1.223
1.263
1.304
1.254
1.295
1.337
1.303
1.346
1.389
1.338
1.382
1.427
1.389
1.434
1.480
1.425
1.472
1.519
1.465
1.514
1.562
= 20 mbar (combus-
20
10000
12000 14000
16000 18000
a.s.l., the pressure drops of the head shown in the diagram are
multiplied by the coefficient K
K
c
Air temperature °C
60
70
80
1.122
1.156
1.190
1.137
1.171
1.205
1.190
1.226
1.262
1.228
1.265
1.302
1.266
1.304
1.342
1.304
1.343
1.382
1.344
1.384
1.425
1.378
1.419
1.461
1.432
1.475
1.518
1.471
1.515
1.559
1.526
1.572
1.618
1.566
1.613
1.660
1.610
1.659
1.707
10
GB
D3889
20000
22000
indicated in Tab. F.
c
90
100
120
1.223
1.257
1.325
1.239
1.273
1.342
1.298
1.333
1.405
1.338
1.375
1.449
1.380
1.418
1.494
1.421
1.460
1.539
1.465
1.505
1.586
1.502
1.544
1.626
1.561
1.604
1.690
1.603
1.647
1.736
1.664
1.709
1.801
1.707
1.754
1.848
1.755
1.804
1.901
Fig. 5
140
150
1.392
1.426
1.410
1.444
1.477
1.512
1.523
1.560
1.570
1.608
1.617
1.656
1.667
1.707
1.709
1.751
1.776
1.819
1.824
1.868
1.893
1.939
1.942
1.989
1.997
2.046
Tab. F
Advertisement
Chapters
Table of Contents
