THERMODYNAMIC MODELING OF THE ADIABATIC C OMBUSTION

The advantage of ''chemical'' energy is determined by the process in w hich the combustion is integrated as part of the process. If the gas t urbine process is considered as typical example, then the conversion o f the fuel energy into technical work is the primary process objective . As the combustion, as is well-known, is highly irreversible, the fol lowing question has to be clarified: How is the relevant portion of th e irreversibility due to combustion to be defined? As exergetic analys is will not lead to the objective in this case, as this one does not t ake the existing process limitations into consideration. The thermodyn amic modelling of the combustion therefore has to take place within th e framework of the total process. In this way, the influence of the co mbustion on the ''profile of the irreversibility'' of the considered p rocess can be shown.