Compute the actual and stoichiometric air-fuel rations.

Question

The exhaust gas analysis of an engine using Octane (C₈H₁₈) as fuel gives equal volumes of CO₂ and unused O₂ Compute the actual and stoichiometric air-fuel rations.

      For equivalence ratio of 1, calculate:

1. The volume of mixture per kg of fuel at pressure of 100 kPa and temperature 70⁰C
2. The volume of the products of combustion per kg of fuel when the temperature of products of combustion is 127⁰C at pressure 1 bar.