In an adiabatic combustion chamber methane CH4 is burned at

In an adiabatic combustion chamber, methane (CH_4) is burned at a rate of 1 kg/s with 1 kg/s of oxygen with both the fuel and oxidizer entering the chamber separately at 100 kPa and 27 degree C. Determine: The reaction equation The temperature of the products The rate of entropy generation

Solution

a) Reaction equation is given by..

CH₄ + 2 O₂ ----------------- CO₂ + 2 H₂O

Mol. mass 16g 64g 44g 36g

Ratio 1:4 :11/4: 9/4

Therefore, 1 kg/s O₂ is required for 0.25kg/s of CH₄ for combustion.

Therefore, 0.75kg/s of CH₄ will remain in the reaction without combustion.