TESTO 330-1 - Calculation Principles: Air Ratio and Conversions; Air Ratio Calculation; Nitrogen Oxide Calculation; Flue Gas Dew Point Temperature Calculation

AAiirr rraattiioo:: λλ
= C02max: Maximum carbon dioxide
specific to fuel
CO2: Calculated carbon dioxide
value
NNiittrrooggeenn ooxxiiddee::
NOx = NO + (NO2add x NO)
NO : Measured nitrogen
monoxide value
NO2add: Nitrogen dioxide addition
factor
CCaarrbboonn mmoonnooxxiiddee
uunnddiilluutteedd::
uCO = CO x
λλ
CO : Measured carbon monoxide
value
λ: calculated air ratio
FFlluuee ggaass ddeeww ppooiinntt
tteemmppeerraattuurree::
FTP = FH20: Flue gas specific water
vapour level in Vol.%
PAbs: Absolute pressure in
mbar/hPa
Conversion of ppm in mg/m
3
:
CCaarrbboonn mmoonnooxxiiddee::
CO [mg/m
3
] = x CO [ppm] x 1.25 21%: Oxygen level of air
O2: Measured oxygen level in %
O2ref: Fuel-specific oxygen
reference value in %
NNiittrrooggeenn ooxxiiddee::
NOx [mg/m
3
] = x NOx [ppm] x 2.05 21%: Oxygen level of air
O2: Measured oxygen level in %
O2ref: Fuel-specific oxygen
reference value in %
21% - O2ref
21% - O2
21% - O2ref
21% - O2
)x 234.175
)- 17.08085
FH20 x PAbs
610.78
FH20 x PAbs
610.78
ln (
ln (
CO2max
CO2
K. Technical data
K.4 Principles of calculation
55