Exergy analysis of a natural gas combined cycle power plant: a case study
by Gabriel Marques Pinto; Christian Jeremi Rodriguez Coronado; Túlio Augusto Zucareli De Souza; Eudes Müller D'Oliveira Santos
International Journal of Exergy (IJEX), Vol. 37, No. 2, 2022

Abstract: This work performs energetic and exergetic analysis of a CCPP, by using a full-scope simulator, which faithfully reproduces the operation of a real Brazilian CCPP. The analyses are performed for design and off-design conditions. The results present, for the design condition, a generated power of 820.6 MW, a first law efficiency of 51.54% and a second law efficiency of 49.32%. The equipment responsible for the main irreversibilities were the combustion chamber (70.24%), gas turbine (10.75%) and heat recovery steam generator (7.37%). In the off-design scenario, the first and second law efficiencies were decreased by 2.65% and 2.54%, respectively.

Online publication date: Wed, 26-Jan-2022

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