Civil Engineering Reference
In-Depth Information
Table 6.6
Minimum stack temperatures and losses for different combustibles without recovery equipment
LOSSES
Minimum
values of stack
temperature
Minimum values
of excess O
2
in
stack gases
Total
stack gas
Dry gas
Moisture
Burning
equipment
C% by
mass
H
2
%by
mass
H
2
O% by
mass
S% by
mass
Others %
by mass
C
F % by volume
Fuel
K
(a) % (b) % (a) % (b) %
(a) % (b) %
Natural gas All burners 75.7
23.3
0
0
1
377 104 220 1
2.9
3.2
10.1
0.
13.0
3.2
Oil N.2 (c) All burners 87
11.9
0
0.5
0.7
439 166 330 2
5.1
5.4
6.4
0.
11.5
5.4
Oil N.6 (d) All burners 86.6
10.8
0
1.50
0.7
472 199 390 3
6.6
7.0
6.2
0.
12.6
7.0
Bituminous
coal
Pulverized
71.3
5.0
4.5
2.80
16.4
416 143 290 4
4.8
5.0
4.5
0.
9.3
5.0
Bituminous
coal
Stoker
71.3
5.0
4.5
2.80
16.4
416 143 290 6
5.5
5.7
4.5
0.
10.0
5.7
(a) with reference to the Higher Heating Value
(b) with reference to the Lower Heating Value
(c) Oil N.2 according to American Society for Testing and Materials (ASTM). It is a distillate oil
(d) Oil N.6 according to American Society for Testing and Materials (ASTM). It is a residual oil
