Energy, exergy, and thermoeconomic analysis of a natural gas combined power plant

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dc.authoridhttps://orcid.org/0000-0002-3604-1707
dc.authoridhttps://orcid.org/0000-0003-2289-7034
dc.contributor.authorAl-Dulaimi, Bashar Mohammed
dc.contributor.authorBayat, Mutlucan
dc.contributor.authorTekir, Mutlu
dc.date.accessioned2025-03-03T11:12:45Z
dc.date.available2025-03-03T11:12:45Z
dc.date.issued2024-12-27
dc.departmentFakülteler, Mühendislik Fakültesi, Makine Mühendisliği Bölümü
dc.description.abstractThis paper explores an innovative power plant design integrating three organic Rankine cycle (ORC) subsystems with a Brayton cycle (BC) to enhance energy conversion efficiency by utilising various waste heat sources. The study applies advanced energy, exergy, and thermoeconomic analyses to comprehensively assess the performance of a natural gas combined cycle (NGCC) power plant, using the energy equation solver (EES) software. The model has been validated against previous research with different parameters, such as compressor efficiency, ambient temperature, and pressure ratio, confirming its accuracy and reliability. The numerical results demonstrate that increasing compressor efficiency from 70 to 88% boosts the NGCC system’s net power output by nearly 60% compared to the Brayton cycle alone. Additionally, both energy and exergy efficiencies of the NGCC improve by 6.6% from the initial state, while the annual cost rate shows a parabolic increase over this range. Furthermore, higher turbine efficiency leads to a 14% increase in overall energy efficiency and a 13% increase in exergy efficiency. An increase in pressure ratio from 6 to 15 raises energy and exergy efficiency by 4% and 3%, respectively. However, the influence of the pressure ratio is less significant compared to the other parameters. Moreover, cycle performance is inversely related to ambient and exhaust gas temperatures.
dc.identifier10.1007/s10973-024-13897-9
dc.identifier.citationAl-Dulaimi, B.M., Bayat, M. & Tekir, M. Energy, exergy, and thermoeconomic analysis of a natural gas combined power plant. J Therm Anal Calorim (2024). https://doi.org/10.1007/s10973-024-13897-9
dc.identifier.doi10.1007/s10973-024-13897-9
dc.identifier.issn1388-6150
dc.identifier.issn1588-2926
dc.identifier.scopus2-s2.0-85213724500
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1007/s10973-024-13897-9
dc.identifier.urihttps://hdl.handle.net/20.500.14619/15103
dc.identifier.wosWOS:001385049400001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakScopus
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherSpringer Netherlands
dc.relation.ispartofJournal of Thermal Analysis and Calorimetry
dc.relation.ispartofseriesJournal of Thermal Analysis and Calorimetry
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Öğrenci
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBrayton cycle
dc.subjectCombined cycle
dc.subjectThermodynamic analysis
dc.subjectThermoeconomic
dc.titleEnergy, exergy, and thermoeconomic analysis of a natural gas combined power plant
dc.typeArticle

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