How is the adiabatic Flame Temperature for a constant volume system estimated { eg. Otto Cycle Analysis (idealization of the process in a gasoline engine)} compared to a Constant Pressure System { gas turbine, furnace }?
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Adiabatic Flame Temperature is determined by using the first law of thermodynamics in an adiabatic situation. For a Constant Pressure System : Change in Enthalpy = Q = 0 For a Constant Volume System : Change in Internal Energy = Q = 0 Change in Internal Energy = Change in Enthalpy - V (P(initial) - P(adiabatic)) The evaluation is done by trial and error and depends on the calculation of mean specific heat of a species at a particular temperature. The attached Fortran and PPT outlines the detail. |
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