Exergy and NOx Emission-Based Ecological Performance Analysis of the Scimitar Engine

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dc.authorid0000-0002-0428-3197en_US
dc.contributor.authorTanbay, Tayfun
dc.contributor.authorDurmayaz, Ahmet
dc.date.accessioned2021-03-20T20:09:22Z
dc.date.available2021-03-20T20:09:22Z
dc.date.issued2020
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliği Bölümüen_US
dc.description.abstractScimitar engine is a hypersonic hybrid engine designed to propel the LAPCAT A2 aircraft. In this study, a novel exergy and NO(x)emission-based ecological performance analysis of the engine is performed. For this purpose, first, a component-based exergy analysis for the cruise phase of the Scimitar engine in air-turborocket mode is performed and the exergy destruction rates of engine components are determined at Mach 5 by the thermodynamic model developed. Then, a novel objective function, the coefficient of emission-based ecological performance (CEEP) is defined as "the propulsive power produced per unit environmentally harmful exhaust gas emission rate," which can be utilized to assess the ecological impact of any jet engine. Finally, the impacts of cruise speed, altitude, and air and fuel mass flow rates on the exergetic and NO(x)emission-based ecological performance of the engine are investigated by the aid of the newly defined CEEP, together with the exergy efficiency and the coefficient of ecological performance. It is found that the combustion chamber is responsible for 57.36% of the overall exergy destruction rate of 123.80 MW at the cruise conditions, and CEEP relatively increases by 13.8% when the hydrogen fuel consumption rate is increased from 3.96 kg/s to 4.17 kg/s. Increasing the cruise speed from Ma = 4.88 to Ma = 5.2 and decreasing the altitude from 25 km to 23 km cause a relative degradation of 12.75% in CEEP.en_US
dc.identifier.doi10.1115/1.4047785en_US
dc.identifier.issn0742-4795
dc.identifier.issn1528-8919
dc.identifier.issue8en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttp://doi.org/10.1115/1.4047785
dc.identifier.urihttps://hdl.handle.net/20.500.12885/387
dc.identifier.volume142en_US
dc.identifier.wosWOS:000561227700001en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorTanbay, Tayfun
dc.language.isoenen_US
dc.publisherAsmeen_US
dc.relation.ispartofJournal Of Engineering For Gas Turbines And Power-Transactions Of The Asmeen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subject[No Keywords]en_US
dc.titleExergy and NOx Emission-Based Ecological Performance Analysis of the Scimitar Engineen_US
dc.typeArticleen_US

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Makine Mühendisliği Bölümü Yayın Koleksiyonu
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