The effects of different channel geometries in the displacer cylinder, working fluids, and engine speed on the energy and exergy performance characteristics of a ?-type Stirling engine with a slider-crank drive mechanism

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dc.contributor.authorDogan, Battal
dc.contributor.authorErol, Dervis
dc.contributor.authorYesilyurt, Murat Kadir
dc.contributor.authorYaman, Hayri
dc.date.accessioned2025-01-21T16:45:24Z
dc.date.available2025-01-21T16:45:24Z
dc.date.issued2023
dc.departmentKırıkkale Üniversitesi
dc.description.abstractStirling engines are power generation systems working with the external heating principle and converting heat energy into mechanical energy. In this study, thermodynamic analyses were performed using the data of performance tests in which helium, nitrogen, and air were utilized as working fluids in a beta-type Stirling engine with a swept volume of 365 cm(3) and a slider-crank drive mechanism. Moreover, the impact of different channel geometries in the displacer cylinder on engine power was revealed. In the study, three displacer cylinders, smooth, 66-slot channel, and 120-slot channel displacer cylinders, were used. Performance tests were conducted at five charge pressures varying between 1 and 5 bar, with the hot end temperature of 1000 +/- 10K and the cold end temperature of 300 +/- 5K. The heat transferred to the hot zone, thermal losses and efficiency were calculated in the energy analysis. The highest thermal efficiency was 45.50% when a 120-slot channel displacer cylinder was used with helium as the working fluid. Thermal efficiency values were 32.87% and 32.60% for nitrogen and air, respectively, under the same conditions. Entropy generation, exergy destruction, and exergy efficiency were calculated in the exergy analysis. The lowest exergy destruction was obtained using a 120-slot channel displacer cylinder with helium as the working fluid. Furthermore, the impact of engine speed on exergy efficiency was determined.
dc.description.sponsorshipScientific Research Projects Coordination Unit of Kirikkale University
dc.description.sponsorshipThe authors would like to thank Scientific Research Projects Coordination Unit of Kirikkale University for their financial support.
dc.identifier.doi10.1177/14680874231177362
dc.identifier.endpage4020
dc.identifier.issn1468-0874
dc.identifier.issn2041-3149
dc.identifier.issue9
dc.identifier.scopus2-s2.0-85162947269
dc.identifier.scopusqualityQ1
dc.identifier.startpage4008
dc.identifier.urihttps://doi.org/10.1177/14680874231177362
dc.identifier.urihttps://hdl.handle.net/20.500.12587/25637
dc.identifier.volume24
dc.identifier.wosWOS:001001907500001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSage Publications Ltd
dc.relation.ispartofInternational Journal of Engine Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241229
dc.subjectbeta-type Stirling engine; slider-crank drive mechanism; engine performance; energy analysis; exergy analysis
dc.titleThe effects of different channel geometries in the displacer cylinder, working fluids, and engine speed on the energy and exergy performance characteristics of a ?-type Stirling engine with a slider-crank drive mechanism
dc.typeArticle

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