Applied Air GAS-FIRED HEATERS, Инструкция по установке и эксплуатации

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FLUE GAS ANALYSIS
This curve correlates the relative values of O
2
and CO
2
for the fuels listed, as well as the percentage of excess
air at given O
2
and CO
2
values.
Example: Following the dotted line on the vertical axis
from 4% O
2
to curve H and the dotted line on the hori-
zontal axis to the left, the % excess air column shows
that 4% O
2
equals 25% excess air.
Following the vertical dotted line axis again from curve
H to fuel A (Natural Gas) and the horizontal axis to the
left, the % CO
2
column shows that 4% O
2
and 25% ex-
cess air correlate to 9-1/2% CO
2
for Natural Gas.
Again following the 4% O
2
vertical axis fo fuel line E (#2
Fuel Oil ) and to the left to the CO
2
column shows that
4% O
2
and 25% excess air correlate to 12-1/2 % CO
2
on #2 Fuel Oil.
This chart can be used to determine required CO
2
or O
2
values (and therefore equivalent BTU input values) for
the secondary fuel when the burner has been properly
adjusted for the primary fuel inputs.
Table 13
CO CO CO CO CO
2 22 22
- O - O - O - O - O
2 22 22
Ratio Curves for Fuel Oils and Gases Ratio Curves for Fuel Oils and Gases Ratio Curves for Fuel Oils and Gases Ratio Curves for Fuel Oils and Gases Ratio Curves for Fuel Oils and Gases
170 1 7
160 1 6
150 1 5
140 1 4
130 1 3
120 1 2
110 1 1
100 1 0
9 0 9
8 0 8
7 0 7
6 0 6
5 0 5
4 0 4
3 0 3
2 0 2
1 0 1
RI
A
S
S
E
C
X
E
T
N
E
C
R
E
P PERCENT CARBON DIOXIDE (CO
2
)
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 20.93
PERCENT OXYGEN (O
2
)
H
F
E
D
G
C
B
A
CURVE FUEL MAXIMUM CO
2
%
A A A A A Nautral Gas Nautral Gas Nautral Gas Nautral Gas Nautral Gas 11.7 11.7 11.7 11.7 11.7
B B
B B
B Natural Gas Natural Gas
Natural Gas Natural Gas
Natural Gas 12.1 12.1
12.1 12.1
12.1
C C C C C Propane Propane Propane Propane Propane 12.1 12.1 12.1 12.1 12.1
D D D D D Butane Butane Butane Butane Butane 14.0 14.0 14.0 14.0 14.0
CURVE FUEL MAXIMUM CO
2
%
E E E E E #2 Fuel Oil #2 Fuel Oil #2 Fuel Oil #2 Fuel Oil #2 Fuel Oil 15.2 15.2 15.2 15.2 15.2
F FF
FF
#5 Fuel Oil #5 Fuel Oil
#5 Fuel Oil #5 Fuel Oil
#5 Fuel Oil 16.0 16.0
16.0 16.0
16.0
G G G G G #6 Fuel Oil #6 Fuel Oil #6 Fuel Oil #6 Fuel Oil #6 Fuel Oil 16.9 16.9 16.9 16.9 16.9
H H H H H Excess Air vs. O Excess Air vs. O Excess Air vs. O Excess Air vs. O Excess Air vs. O
2 22 22