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dc.contributor.authorKöse, Özkan
dc.contributor.authorKoç, Yıldız
dc.contributor.authorYağlı, Hüseyin
dc.date.accessioned2020-05-24T15:31:47Z
dc.date.available2020-05-24T15:31:47Z
dc.date.issued2020
dc.identifier.citationKose, O., Koc, Y., Yagli, H. (2020). Performance improvement of the bottoming steam Rankine cycle (SRC) and organic Rankine cycle (ORC) systems for a triple combined system using gas turbine (GT) as topping cycle. Energy Conversion and Management, 211. art no. 1127452. https://doi.org/10.1016/j.enconman.2020.112745en_US
dc.identifier.issn0196-8904
dc.identifier.issn1879-2227
dc.identifier.urihttps://doi.org/10.1016/j.enconman.2020.112745
dc.identifier.urihttps://hdl.handle.net/20.500.12508/1109
dc.descriptionWOS: 000530067800006en_US
dc.description.abstractIn the present study, performance improvement of SRC and ORC systems used as a bottoming system in a GT based triple combined system was evaluated for varying turbine inlet temperature and pressure. In the first step, SRC was parametrically optimized for a varying pressure (from 10 bar to 100 bar) and temperature (from saturated steam temperature to 480 degrees C). In the second step, a parametric optimization is performed to comprehensively evaluate the effects of acetone, R113, R141b, R152a, R245fa and R365mfc on thermodynamic performances of ORC (Organic Rankine Cycle) with the increasing turbine inlet pressure and temperature. Along with the optimization, the ORC turbine inlet pressure was heightened from 7.5 bar to the critical pressures of the working fluids with the increments of 2.5 bar. The ORC turbine inlet temperature was varied between saturation temperature and the maximum working temperature of selected working fluids. Finally, energy and exergy efficiencies of the overall triple combined system (GT-SRC-ORC) was calculated by depending on pressure, temperature and working fluids. As a result, the best working fluids among the selected fluids was found as R141b. Maximum net thermal efficiency, exergy efficiency and a net power of the ORC with R141b were calculated as 22.6%, 64.76% and 780.35 kW at 40 bar and 225 degrees C, respectively. Net thermal and exergy efficiency of the overall system (GT-SRC-ORC) with R141b was found 47.65%, 67.35%, respectively. By this way, the waste heat recovery corresponding to 734.57 kg/h natural gas which is equivalent to 2203.73 kg-CO2/h emissions was carried out.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.isversionof10.1016/j.enconman.2020.112745en_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCombined systemen_US
dc.subjectGas turbineen_US
dc.subjectSteam rankine cycle (SRC)en_US
dc.subjectOrganic rankine cycle (ORC)en_US
dc.subjectOptimisationen_US
dc.subjectExergyen_US
dc.subject.classificationThermodynamicsen_US
dc.subject.classificationEnergy & Fuelsen_US
dc.subject.classificationMechanicsen_US
dc.subject.classificationRankine Cycle | Working Fluids | Waste Heat Utilization
dc.subject.otherInternal-combustion engineen_US
dc.subject.otherWaste heat-recoveryen_US
dc.subject.otherFluid selectionen_US
dc.subject.otherWorking fluidsen_US
dc.subject.otherNatural-gasen_US
dc.subject.otherThermodynamic optimizationen_US
dc.subject.otherParametric optimizationen_US
dc.subject.otherExergetic analysisen_US
dc.subject.otherTemperatureen_US
dc.subject.otherMultigenerationen_US
dc.subject.otherAcetone
dc.subject.otherBottoming cycle systems
dc.subject.otherExergy
dc.subject.otherGas emissions
dc.subject.otherGas turbines
dc.subject.otherTemperature
dc.subject.otherTopping cycle systems
dc.subject.otherWaste heat
dc.subject.otherWaste heat utilization
dc.subject.otherWorking fluids
dc.subject.otherEnergy and exergy efficiency
dc.subject.otherOrganic Rankine cycles
dc.subject.otherParametric optimization
dc.subject.otherSaturation temperature
dc.subject.otherThermodynamic performance
dc.subject.otherTurbine inlet pressure
dc.titlePerformance improvement of the bottoming steam Rankine cycle (SRC) and organic Rankine cycle (ORC) systems for a triple combined system using gas turbine (GT) as topping cycleen_US
dc.typearticleen_US
dc.relation.journalEnergy Conversion and Managementen_US
dc.contributor.departmentMühendislik ve Doğa Bilimleri Fakültesi -- Makina Mühendisliği Bölümüen_US
dc.contributor.authorID0000-0002-9777-0698en_US
dc.identifier.volume211en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.contributor.isteauthorKöse, Özkanen_US
dc.contributor.isteauthorKoç, Yıldızen_US
dc.contributor.isteauthorYağlı, Hüseyinen_US
dc.relation.indexWeb of Science - Scopusen_US
dc.relation.indexWeb of Science Core Collection - Science Citation Index Expanded


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