| Summary: | Efficient power generation systems are required because of the rapid increase in demand for energy in industry, commerce, and residence. Systems that produce power and heat can have higher efficiency. In this work, a Combined Cooling Heat and Power (CCHP) system with a gas turbine is used to produce electric power for chillers and hot water for a university campus. The current energy plant for the university is described, showing the annual cost for each sub-system, and the cooling and heating demands. Five gas turbines are analyzed and used with a heat exchanger to produce hot water in the CCHP system. A thermodynamic model has been developed based on the parameters given by gas turbine manufacturers for the energy, exergy, and economic analysis. The thermodynamic and exergy calculations are compared with literature to verify the results. The difference between the company data and the thermodynamic model is 6.9% for turbine outlet temperature, and 0.3% for thermal efficiency. The average exergetic efficiency of the proposed energy plant is 45%. Siemens – 5.4 MW has the lowest payback and the highest ROI with 2.54 and 7.48%, respectively. The annual fuel cost for the Solar – Taurus 60 is US$1.2 million.
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