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2.1
Calculation Formulae
Calculation of the CO value:
2
CO
:
max. CO -value (fuel-specific) in % Volume.
2max
O :
Measured oxygen content in % Volume.
2
21:
Oxygen content of the air in % Volume.
Calculation of the waste gas loss:
T.Gas:
Waste / flue gas temperature in °F or °C.
T.Room:
Combustion / ambient temperature in °F or °C.
A2, B:
Fuel-specific factors.
Calculation of the excess air value (Lambda):
Calculation of the combustion efficiency value (Eta):
Calculation of CO 0%(undiluted):
CO
= CO
2
2
qA = ( T.Gas - T.Air ) * (---------- + B)
Lambda =
Eta = 100 - qA
CO0% = CO * Lambda
O
2
* ( 1 - ------- )
in % Volume
2max
20.9
A2
21 - O
2
CO
20.9
2
max
- ----------- = ------------
CO
20.9 - O
2
2
in %
in ppm
in %
6
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