Solve the below problem:
Q: Using EES (or other) software, determine the minimum percent of excess air that needs to be used for the fuels CH4(g), C2H2(g), CH3OH(g), C3H8(g), C8H18(l) if the adiabatic flame temperature is not to exceed 1500 K. Assume both the fuel and the air enter the steady flow combustion chamber at 25°C.