Question: Isooctane (C8H18) as a hydrocarbon fuel is used in a combustion chamber and burned with 0.83 excess air, this fuel enters the combustion chamber at

Isooctane (C8H18) as a hydrocarbon fuel is used in a combustion chamber and burned with 0.83 excess air, this fuel enters the combustion chamber at 25°C. If the total pressure during the combustion process is 100 kPa.

Calculate:

a) The mass basis air-fuel ratio

b) The percentage by volume of oxygen and water and carbon dioxide in the products.

c) If the total pressure is 100 kPa, find the dew point temperature of the products.

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