Exhaust mass flow=Fuel consumption+combustion air consumption(1-21)
(with the excess air factor defined in step four)
air consumptio=lv・fuel consumption・stoichiometric air demand(1-22)
Exhaust mass flow=Fuel consumption・(1+lv・stoichiometric air demand) (1-23)
GEXHW=GFUEL・(1+EAFEXH・STOIAR) (1-24)
3 METHOD 2, UNIVERSAL, CARBON/OXYGEN-BALANCE
3.1 Introduction
The described method gives an easily understandable description of the carbon and oxygen balance method. It may be used when the fuel consumption is measurable and when the fuel composition and the concentrations of the exhaust components are known.
3.2 Calculation of the exhaust mass flow on the bases of the carbon balance