The document discusses energy and exergy analysis of a diesel engine powered cogeneration plant (DEPC). It first provides background on cogeneration and its benefits. It then describes the components and working of the DEPC plant, which has a total installed capacity of 25.32 MW electricity and 8.1 tons/hr of steam. The plant uses three diesel engines fueled by heavy fuel oil. The document presents the thermodynamic analysis of the plant using concepts of energy and exergy balances. It finds that the plant has a first law efficiency of 40.4% and second law (exergetic) efficiency of 40.6%. The largest exergy destruction of 46% occurs in the diesel engines.

1. Energy and Exergy Analysis of Diesel Engine Powered Cogeneration Systems Dr. Aysegul Abusoglu Mechanical Engineering Department University of Gaziantep

8. The Schematic of The Actual Diesel Engine Powered Cogeneration

9. Plant data, thermodynamic properties, and exergies in the DEPC plant wrt state points in the schematic

21. Exergy of Fuels (F) and Exergy of Products (P) for DEPC

22. RESULTS

23. Energetic and Exergetic Analyses Results for the Sub-systems in the DEPC Plant

24. Exergy Flow Diagram of DEPC Plant

25. The Rate of Exergy Destructions of the Components in the DEPC Plant

26. Variation of Fuel Utilization Efficiency (FUE) and Power to Heat Ratio (PHR) as a Function of Process Steam Output for DEPC

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