Performance and Emission Characteristics of a Miller Cycle Engine

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dc.contributor.authorDemirci, Oğuz K.
dc.contributor.authorUyumaz, Ahmet
dc.contributor.authorSarıdemir, Suat
dc.contributor.authorÇınar, Can
dc.date.accessioned2020-04-30T14:12:15Z
dc.date.available2020-04-30T14:12:15Z
dc.date.issued2018
dc.departmentDÜ, Teknoloji Fakültesi, Makine ve İmalat Mühendisliği Bölümüen_US
dc.description.abstractIn this study, intake and exhaust cams were designed to perform the late intake valve closing (LIVC) Miller cycle operation using spline functions in a single-cylinder, four-stroke, spark-ignition engine. A special camshaft was manufactured and adapted to the engine to adjust valve opening and closing timings. The experiments were conducted at two different LIVC timing and the results were compared with Otto cycle. The tests were conducted at 1700-3200 rpm engine speed range at wide open throttle (WOT). In the experiments, the variation of brake torque, power output, specific fuel consumption (SFC), thermal efficiency, HC, CO, NOx emissions and exhaust gas temperature versus engine speed were investigated. More power output was obtained with Otto cycle than Miller cycles for all engine speeds. Brake torque and engine power decreased by 5.24%, and 1.17% respectively with MA cycle (Miller cycle A) compared to Otto cycle at 2600 rpm engine speed. Thermal efficiency increased by 1.29%, while the SFC decreased 2.08 % with Otto cycle in comparison with MA cycle at maximum brake torque speed. HC and CO increased by 6.48 % and 11.66% respectively with MA cycle compared to Otto cycle at the same operation condition. NOx decreased up to 7.79% with MA cycle compared to Otto cycle due to the lower exhaust gas temperature at maximum brake torque speed of 2600 rpm.en_US
dc.identifier.doi10.18245/ijaet.486408en_US
dc.identifier.endpage116en_US
dc.identifier.issn2146-9067
dc.identifier.issue3en_US
dc.identifier.startpage107en_US
dc.identifier.urihttps://doi.org/10.18245/ijaet.486408
dc.identifier.urihttps://app.trdizin.gov.tr/makale/TWprM05qRTJOZz09
dc.identifier.urihttps://hdl.handle.net/20.500.12684/841
dc.identifier.volume7en_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isoenen_US
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectMühendisliken_US
dc.subjectMakineen_US
dc.titlePerformance and Emission Characteristics of a Miller Cycle Engineen_US
dc.typeArticleen_US

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