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dc.contributor.authorKoç, Yıldız
dc.contributor.authorYağlı, Hüseyin
dc.contributor.authorKoç, Ali
dc.date.accessioned12.07.201910:50:10
dc.date.accessioned2019-07-12T22:05:54Z
dc.date.available12.07.201910:50:10
dc.date.available2019-07-12T22:05:54Z
dc.date.issued2019
dc.identifier.citationKoc, Y., Yaglı, H., Koc, A. (2019). Exergy analysis and performance improvement of a subcritical/supercritical organic Rankine cycle (ORC) for exhaust gas waste heat recovery in a biogas fuelled combined heat and power (CHP) engine through the use of regeneration. Energies, 12(4), 1-22. doi: 10.3390/en12040575en_US
dc.identifier.issn1996-1073
dc.identifier.urihttps://doi.org/10.3390/en12040575
dc.identifier.urihttps://hdl.handle.net/20.500.12508/580
dc.descriptionWOS: 000460667700001en_US
dc.descriptionScience Citation Index Expandeden_US
dc.description.abstractIn the present study, a subcritical and supercritical regenerative organic Rankine cycle (rORC) was designed. The designed rORCs assist a combined heat and power (CHP) engine, the fuel of which is biogas produced from anaerobic digestion of domestic wastes in Belgium. R245fa was selected as the working fluid for both the subcritical and supercritical rORC. During the parametric optimisation, the net power production, mass flow rate, exchanged heat in the regenerator, total pump power consumption, thermal and exergetic efficiencies of rORC were calculated for varying turbine inlet temperatures and pressures. After parametric optimisation of the rORC, the results were compared with the results of the previous study, in which only a simple ORC is analysed and parametrically optimised. Moreover, the effect of the regenerator was revealed by examining all results together. Finally, the exergetic analysis of the best performing subcritical and supercritical rORC was performed. Furthermore, the results of the present and previous studies were considered together and it is clearly seen that the subcritical rORC shows the best performance. Consequently, by using the subcritical rORC, the disadvantages of the using simple ORC (low performance) and supercritical cycle (safety, investment) can be eliminated and system performance can be improved.en_US
dc.language.isoengen_US
dc.publisherMDPIen_US
dc.relation.isversionof10.3390/en12040575en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectCombined Heat and Power (CHP)en_US
dc.subjectRegenerative Organic Rankine Cycle (rORC)en_US
dc.subjectThe Effect of the Regeneratoren_US
dc.subjectExhaust Gasen_US
dc.subjectSubcriticalen_US
dc.subjectSupercriticalen_US
dc.subjectParametric Optimizationen_US
dc.subjectExergyen_US
dc.subject.classificationRankine cycle | Waste heat | Waste heat utilizationen_US
dc.subject.classificationEnergy & Fuelsen_US
dc.subject.otheranaerobic digestionen_US
dc.subject.otherbiogasen_US
dc.subject.otherenginesen_US
dc.subject.otherexergyen_US
dc.subject.otherexhaust gasesen_US
dc.subject.othergasesen_US
dc.subject.otherpower generationen_US
dc.subject.otherregeneratorsen_US
dc.subject.otherwaste heaten_US
dc.subject.otherwaste heat utilizationen_US
dc.subject.othercombined heat and poweren_US
dc.subject.otherorganic rankine cyclesen_US
dc.subject.otherparametric optimizationen_US
dc.subject.othersubcriticalen_US
dc.subject.othersupercriticalen_US
dc.subject.otherrankine cycleen_US
dc.subject.otherengineeringen_US
dc.subject.otherlow-grade heaten_US
dc.subject.otherthermoeconomic analysisen_US
dc.subject.otherthermodynamic analysisen_US
dc.subject.otherworking fluiden_US
dc.subject.otherparametric optimizationen_US
dc.subject.otherice rinken_US
dc.subject.othersystemen_US
dc.subject.otherstorageen_US
dc.subject.otherbiomassen_US
dc.subject.otherplanten_US
dc.titleExergy analysis and performance improvement of a subcritical/supercritical organic Rankine cycle (ORC) for exhaust gas waste heat recovery in a biogas fuelled combined heat and power (CHP) engine through the use of regenerationen_US
dc.typearticleen_US
dc.relation.journalEnergiesen_US
dc.contributor.departmentMühendislik ve Doğa Bilimleri Fakültesien_US
dc.identifier.volume12en_US
dc.identifier.issue4en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.contributor.isteauthorKoç, Yıldız
dc.contributor.isteauthorYağlı, Hüseyin
dc.contributor.isteauthorKoç, Ali
dc.relation.indexWeb of Science (ESCI) - Scopusen_US


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