
Adiabatic Flame Temperature of Octane as a Function of Fraction of Air
This application will calculate and plot the flame temperature of octane for a varying amount of air. Temperature-dependent thermodynamic properties are extracted using the ThermophysicalData:-Chemicals package.
For lean combustion (i.e. 100% or more stoichiometric air), the combustion reaction is
C8H18 + 12.5 Y/100 (O2 + 3.76 N2) → 8 CO2 + 9 H2O + (Y/100-1) O2 + 47 Y / 100 N2
For rich combustion (i.e. less than 100% stoichiometric air), the combustion reaction is (assuming that the combustion products contain CO2, H2O, CO and N2)
C8H18 + 12.5 Y/100 (O2 + 3.76 N2) → (25Y - 1700)/100 CO2 + 9 H2O + (2500 - 25Y)/100 CO + 47 Y /100 N2
Procedure to calculate and plot flame temperature

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