Basic calculations
dreizler A 3001 E - 18.12.2015 | A 2048 - 1.12 | EN - 09.11.2012
162
50.5 Determining the reduction factor in compliance with Gas burner standard EN 676
The corrected burner capacity is calculated with the formula:
Q
B
= f * V * H
i
Whereby:
50.6 Air requirements and waste gas quantity depending on burner capacity
determined for
= 1.2 (CO
2EG
= 9.83% and CO
2PR
= 11.5%)
Tab. 50-1 Determining intermediate values by interpolation
H
i
: the lower heating value for combustion gas
V:
the volume flow, measured in test conditions
(measured at the gas meter with pressure (p
at
+ p) and temperature (t
g
))
Q
B
: the burner capacity
p
at
: the atmospheric pressure in mbar
p:
the gas pressure, measured at the gas meter in mbar
t
g
:
the gas temperature, measured at the gas meter in °C
Burner capacity Air flow requirement in m
3
/h at
waste gas flow in m
3
/h at
kW
Natural gas
Propane
Natural gas
Propane
50
77
75
86
74
100
154
149
172
147
150
231
224
258
221
200
308
298
258
221
300
462
448
516
441
400
616
596
688
588
500
770
745
860
735
600
924
894
1032
882
700
1078
1043
1204
1209
800
1232
1192
1376
1176
900
1386
1341
1548
1323
1000
1540
1490
1720
1470
1250
1925
1863
2150
1838
1500
2310
2235
2250
2205
1750
2695
2608
3010
2573
2000
3080
2980
3440
2940
2500
3850
3726
4300
3676
