Abstract
In this study, the waste energy from exhausted gases of a gas turbine was recovered in a novel combined cooling, heating, and power system integrated of a gas turbine power plant, Kalina cycle, single-effect LiBr–H2O absorption chiller, parabolic trough collectors, heat recovery steam generator unit, and domestic hot water provision. This system utilized solar energy to preheat the air inlet to the combustion chamber and alleviated the emission of carbon dioxide resulted from consuming methane. An unparalleled algorithm was introduced to determine an optimum configuration of solar collectors. The results indicated that there were six optimum points with respect to maximum net power, minimum carbon dioxide emission and maximum exergy efficiency. The best optimum point was recognized using technique for order preferences by similarity to ideal solution method. The findings showed that compression ratio of 11.66, pinch point temperature difference in the air preheaters-1 of 11.96 K, inlet temperature of gas turbine-1 of 1470 K, and inlet temperature of combustion chamber of 900 K were the best multi-objective optimum conditions. In that condition, the net power, the system emission and the exergy efficiency were 61.73 MW, 52.87 g/MJ and 44.22%, respectively.
Published Version
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