Efficiency of Unitary Primary Exergy and Distribution of Exergy Flow Values

After an analysis of the non equivalence of exergy the authors put forward a series of concepts, such as exergy elastic factor, primary exergy loss rate, etc. On the basis of the exergy elastic factor analyzed is the influence of exergy efficiency of various constituent elements in an unitary system on the exergy efficiency of the system as a whole. A method for calculating the primary exergy loss rate is derived and the analytical calculation of a specific case given. The results of the analysis indicate that the primary exergy consumed by the unitary exergy of various constituent elements in the system can truthfully reflect the exergy consumption characteristics of these constituent elements, thus facilitating a scientific analysis of the energy saving potential of the various constituent elements of the system.