Question: Methane is combusted with dry air, as displayed in Fig. 12.23. A dry volumetric analysis of the products indicates 6.2% CO2, 9.9 % O2, and

Methane is combusted with dry air, as displayed in Fig. 12.23. A dry volumetric analysis of the products indicates 6.2% CO2, 9.9 % O2, and 83.9% N2. Estimate the air-fuel ratio and the percentage of theoretical air.

Dry air CH4 owt Combustion chamber 62% CO 2, 12.3% O 2,69.3% N 2 Plus water

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