Exergetic Analysis of Cogeneration Energy Sources

This article discusses the method of thermal and exergetic analysis of cogeneration energy sources on the example of the gas turbine unit LM6000PF (GTU-CHPP «Vostochnaya»). The purpose of the conducted exergetic analysis is to determine the most advantageous method for evaluating the performance of equipment in terms of thermodynamic efficiency. The comparison of GTU efficiency values obtained by calculation using the methods of thermal and exergetic analysis is performed. A special feature of the exergetic analysis is the use of an additional indicator as exergy along with energy indicator. In the analysis, the efficiency of using the energy of the fuel burned in the GTU combustion chamber and the working bodies of the gas cycle for the production of electrical and thermal energy is assessed by comparing the actually accomplished work with the exergy of the process.