Exergy efficiency is shown to be an important parameter in ranking the power plant components, identifying and quantifying the possible areas of reduction in thermodynamic losses and improvement in efficiencies. By analyzing the thermodynamic performance of these components, the study demonstrates the utility value of exergy efficiency as an important parameter in the evaluation of major components in a gas power plant. This study is sequel to the fact that the gas turbines were the first independent power plants in the country and after more than fifteen years of operation, it is reasonable to evaluate the performance of the major components. The power plants have the peculiarity that three of the plants were supplied by three (3) different Original Equipment Manufacturers (OEM) A, B and C. Performance of a 270 MW Gas Power Plant Using Exergy and Heat RateĮxergy Analysis, Gas Turbine Power Plant, Heat Rate, Efficiency and PerformanceĪBSTRACT: The performance of a 270 MW (9 × 30 MW) AES Corporation barge mounted gas turbine power plant in Nigeria is evaluated using the heat rate and entropy generation by the components of the plant to characterize the irreversibility in each component when operating at different loads between 90% and 25%. 5th Edition, Oxford Basic Blackwell Publishers, Britain. (1995) Thermodynamics and Transport Properties of Fluids.
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