2.1
Calculation Formulae
Calculation of the C
ue:
CO
Measured oxygen content in % Volume.
21:
Oxygen content of the air in % Volume.
Calculation of the waste gas loss:
in %
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):
in %
Calculation of CO 0% (undiluted):
in ppm
O2
CO
20.9
A2
qA = ( T.Gas - T.Air ) * (---------- + B)
21 - O
Lambda =
Eta = 100 - qA
CO0% = CO * Lambda
O2 val
2max:
Max. CO -value (fuel-specific) in % Volume.
O2:
2
2
= CO
*
( 1 - ------- )
20.9
2max
CO2max
- ----------- = ------------
CO2
20.9 - O2
in % Volume
2
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