Performance and exergy analyses of GT-MHR nuclear cycles

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dc.authorid0000-0001-9665-8787
dc.authorid0000-0003-0040-9167
dc.authorid0000-0002-2193-3411
dc.contributor.authorAkçay, Enes
dc.contributor.authorKeven, Arzu
dc.contributor.authorKaraali, Rabi
dc.date.accessioned2026-07-22T14:12:23Z
dc.date.available2026-07-22T14:12:23Z
dc.date.issued2026
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Mekatronik Mühendisliği Bölümü
dc.description.abstractIn this study, the performance and exergy analyses of the GT-MHR type nuclear power plants with high thermal energy were analysed. The GT-MHR(GasTurbine-Modular HeliumReactor), produces electricitybyusing helium gas inthe Brayton cycle, and utilizes the waste heat of the system with the Rankine cycle. The Brayton cycle allows helium gas to be heated to high temperatures in the reactor core, then converted into mechanical energy by usinga gas turbine. This hybrid structuresin the designsof GT-MHRsallow the combined use of nuclear and renewable energy sources.It was foundthat exergy efficiency reached its maximum level between approximately 14,000 -16,000 kPa. At this point, the exergy losses of thissystem approach itslowest level and the components reach the most ideal operating conditions. If the system is operated below or above of this value, the total exergy efficiency will decrease. The exergy efficiency, which is initially approximately 74.5% at 500 kPa pump pressure, increases to 75.1% at 1000 kPa pressure level. While the pump pressure at 500 kPa produces a work of approximately 532,000 kW, at 1000 kPa it increases to 560,000 kW. Thus, GT-MHR pioneers the energy technologies of the future by combining both high efficiency and environmental sustainability.
dc.identifier.citationAkçay, E., Keven, A., & Karaali, R. (2026). Performance and exergy analyses of GT-MHR nuclear cycles. International Journal of Computational and Experimental Science and Engineering, 12(2), pp. 442-450. https://doi.org/10.22399/ijcesen.5214
dc.identifier.doi10.22399/ijcesen.5214
dc.identifier.endpage450
dc.identifier.issn2149-9144
dc.identifier.issue2
dc.identifier.startpage442
dc.identifier.urihttps://doi.org/10.22399/ijcesen.5214
dc.identifier.urihttps://hdl.handle.net/20.500.13055/1551
dc.identifier.volume12
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.institutionauthorKaraali, Rabi
dc.institutionauthorid0000-0002-2193-3411
dc.language.isoen
dc.publisherProf. Dr. İskender AKKURT
dc.relation.ispartofInternational Journal of Computational and Experimental Science and Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectGT-MHR
dc.subjectExergy
dc.subjectPerformance
dc.titlePerformance and exergy analyses of GT-MHR nuclear cycles
dc.typeArticle
dspace.entity.typePublication

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