Energy, exergy and economic optimization application of integrated dual-loop organic rankine cycle: A case of shopping mall power plant

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dc.contributor.authorTopcu, Muhammed Taha
dc.contributor.authorTozlu, Alperen
dc.contributor.authorBilen, Kadir
dc.date.accessioned2026-02-28T12:17:47Z
dc.date.available2026-02-28T12:17:47Z
dc.date.issued2025
dc.departmentBayburt Üniversitesi
dc.description.abstractThis paper presents a thermoeconomic analysis of the Dual-Loop Organic Rankine Cycle (DORC) integrated into the Erzurum Mall Power Plant (EMPP). The DORC system is designed to utilize waste heat at 425 degrees C and 9 kg/s, producing additional power for the existing plant. The integration of dual-loop ORC systems with different critical temperature fluids into an operational facility is analyzed. High-temperature cycles use working fluids such as Toluene, MDM (octamethylcyclotrisiloxane), n-Nonane, and n-Octane, while refrigerants R236fa, R600a, and R124 are employed in the low-temperature cycles. The designed model demonstrates that up to 11.4 % of the plant's existing capacity can be added as extra power. The Toluene/R600a combination is identified as the best fluid pair, delivering the highest total net power output (653.4 kW), the lowest total cost rate (19.18 $/h), and the highest exergy efficiency (20.18 %). Optimization of the DORC system is performed using the NSGA-II in MATLAB. For the toluene/R600a pair, the optimization results show an increase of 13.52 % in the net power output and decrease of 1.48 % in the total cost rate, which is a significant improvement over the initial results.
dc.description.sponsorshipAtaturk University Coordination Unit of Scientific Research Projects [FDK-2022-10614]
dc.description.sponsorshipThis study was funded by Ataturk University Coordination Unit of Scientific Research Projects under grant no FDK-2022-10614.
dc.identifier.doi10.1016/j.csite.2025.106762
dc.identifier.issn2214-157X
dc.identifier.urihttps://doi.org/10.1016/j.csite.2025.106762
dc.identifier.urihttps://hdl.handle.net/20.500.12403/5981
dc.identifier.volume74
dc.identifier.wosWOS:001550882600002
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofCase Studies in Thermal Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20260218
dc.subjectWaste heat recovery
dc.subjectWorking fluid pairs
dc.subjectThermoeconomics
dc.subjectDual-loop organic rank & imath;ne cycle
dc.subjectGenetic algorithm
dc.subjectOptimization
dc.titleEnergy, exergy and economic optimization application of integrated dual-loop organic rankine cycle: A case of shopping mall power plant
dc.typeArticle

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