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The following equations were used to calculate the following values:
CO
value:
CO
2
2
Flue gas loss:
qA = (FT-AT)
If the fuel-specific factors A2 and B are equal to zero, the Siegert equation is used, applying the factor f.
qA = f x
Technical
combustion
efficiency:
Eta = 100 - qA
Excess air
index λ:
λ =
NOx:
NOx = NO + NO
Please refer to page 77
CO
x (21% - O
%)
2max
2
=
21%
A2
+ B
(21 - O
)
2
(FT - AT) FT
CO
2
CO
2max
CO
2
x NO
add
German calculation information
CO
2max
21 %
O
%
2
FT
- K
AT
K
A2/B
21
O
2
K
K
:
AT
CO
2
f
If qA is negative, Eta becomes greater than
100%.
CO
2max
CO
2
f
NO
add
: fuel-specific maximum
CO
value
2
: oxygen content of the air in %
: measured oxygen content
in %
: flue gas temperature
: ambient (combustion) temp.
: fuel-specific factors
: oxygen content of the air
: measured oxygen content
: is a factor which qA produces
as a negative value when the
temperature is not reached.
Required for measurement of fuel
value systems.
flue gas temperature
: ambient (combustion) temp.
: calculated CO
value
2
: fuel-specific factor
: fuel-specific
maximum CO
value
2
: calculated CO
value
2
: fuel-specific factor
: NO2 addition factor
99a
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