ECOMAX · Edition 02.11
15
5 .3 Gas types
Gas type
Code letter
Calorific value
range
[kWh/m
3
(n)]
Density
ρ
[kg/m
3
]
Natural gas L
and H quality
B
8 – 12
0.7– 0.9
Propane, pro-
pane/butane,
butane
G
25 – 35
2.0 – 2.7
Town gas,
coke oven
gas
D
4 – 6
0.4 – 0.6
LCV gas
L
1.7 – 3.9
0.9 –1.15
The output of the burners – see page 14 (Burner design) – refers
to natural gas and LPG.
In the case of coke oven gas, the output of the burners is
reduced to about 80%; higher outputs are only possible with
higher supply pressure.
In the case of LCV gas, the output of the burners is reduced
to about 65% of the rated output.
5 .4 Burner length
The burner length
G
should be selected so that the burner is
flush with the inside edge of the furnace lining (
S1
= 0 ± 20 mm).
S1
P1
N1
G
M1
L1
K1
Selection
