Publication:
Influence of hydrogen enrichment strategy on performance characteristics, combustion and emissions of a rotary engine for unmanned aerial vehicles (uavs)

dc.contributor.authorKüçük, Merve
dc.contributor.authorŞener, Ramazan
dc.contributor.buuauthorKÜÇÜK, MERVE
dc.contributor.buuauthorSürmen, Ali
dc.contributor.buuauthorSÜRMEN, ALİ
dc.contributor.departmentBursa Uludağ Üniversitesi/Mühendislik Fakültesi/Otomotiv Mühendisliği Bölümü.
dc.contributor.researcheridJCN-8081-2023
dc.date.accessioned2024-10-30T12:18:29Z
dc.date.available2024-10-30T12:18:29Z
dc.date.issued2022-12-01
dc.description.abstractIn recent years, there has been great interest in Wankel-type rotary engines, which are one of the most suitable power sources for unmanned aerial vehicle (UAV) applications due to their high power-to-size and power-to-weight ratios. The purpose of the present study was to investigate the potential of a hydrogen enrichment strategy for the improvement of the performance and reduction of the emissions of Wankel engines. The main motivation behind this study was to make Wankel engines, which are already very advantageous for UAV applications, even more advantageous by applying the hydrogen enrichment technique. In this study, hydrogen addition was implemented in a spark-ignition rotary engine model operating at a constant engine speed of 6000 rpm. The mass fraction of hydrogen in the intake gradually increased from 0% to 10%. Simulation results revealed that addition of hydrogen to the fuel accelerated the flame propagation and increased the burning speed of the fuel, the combustion temperature and the peak pressure in the working chamber. These phenomena had a very positive effect on the performance and emissions of the Wankel engine. The indicated mean effective pressure (IMEP) increased by 8.18% and 9.68% and the indicated torque increased by 6.15% and 7.99% for the 5% and 10% hydrogen mass fraction cases, respectively, compared to those obtained with neat gasoline. In contrast, CO emissions were reduced by 33.35% and 46.21% and soot emissions by 11.92% and 20.06% for 5% and 10% hydrogen additions, respectively. NOx emissions increased with the application of the hydrogen enrichment strategy for the Wankel engine.
dc.identifier.doi10.3390/en15249331
dc.identifier.issue24
dc.identifier.urihttps://doi.org/10.3390/en15249331
dc.identifier.urihttps://hdl.handle.net/11452/47197
dc.identifier.volume15
dc.identifier.wos000902464700001
dc.indexed.wosWOS.SCI
dc.language.isoen
dc.publisherMdpi
dc.relation.journalEnergies
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectMixture formation
dc.subjectInjection strategy
dc.subjectDiesel-engine
dc.subjectIdle performance
dc.subjectProducer gas
dc.subjectPort
dc.subjectParameters
dc.subjectLoad
dc.subjectCfd simulation
dc.subjectCombustion
dc.subjectEmission
dc.subjectHydrogen enrichment
dc.subjectWankel engine
dc.subjectUavs
dc.subjectScience & technology
dc.subjectTechnology
dc.subjectEnergy & fuels
dc.titleInfluence of hydrogen enrichment strategy on performance characteristics, combustion and emissions of a rotary engine for unmanned aerial vehicles (uavs)
dc.typeArticle
dspace.entity.typePublication
relation.isAuthorOfPublication9bcd95a7-b11a-4352-a01a-621f9c0ec473
relation.isAuthorOfPublicationbbb6a87b-93c3-4c2b-ad11-75de3c9d0c07
relation.isAuthorOfPublication.latestForDiscovery9bcd95a7-b11a-4352-a01a-621f9c0ec473

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