Experimental investigation of a diesel engine fueled with diesel–DME blends and hydrogen/acetylene port injection: Energy, exergy, emission, and enviroeconomic analysis

Basit Öğe Kaydı
dc.authorid0000-0001-7383-1428
dc.authorid0000-0002-6968-8734
dc.authorid0000-0002-2328-5809
dc.authorid0000-0002-5212-0966
dc.contributor.authorDemir, Usame
dc.contributor.authorÖzer, Salih
dc.contributor.authorGülcan, Halil Erdi
dc.contributor.authorTunçer, Erdal
dc.date.accessioned2026-07-14T06:53:43Z
dc.date.available2026-07-14T06:53:43Z
dc.date.issued2026
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliği Bölümü
dc.description.abstractThis study experimentally evaluated the performance, emissions, energy, exergy, environmental, and envir oeconomic characteristics of a single-cylinder diesel engine fueled with diesel–dimethyl ether (DME) blends and port-injected acetylene and hydrogen. Experiments were conducted at 1800 rpm under loads of 3.2, 6.4, 7.9, and 12.8 Nm. Diesel was used as the reference fuel, while DME was blended with diesel at 10%, 20%, and 30% by volume. Acetylene and hydrogen were supplied individually or together at 5 and 10 L/h. Results showed that DME addition reduced fuel energy input by 12–28% and exergy destruction by 35–68%. Exergy efficiency increased from 13 to 14% for diesel to 26% with D70DME30 and to 28–30% in gas-assisted modes. Soot, CO, and HC emissions decreased significantly, while NO x increased moderately by 8–18%. Annual CO emissions and enviroeconomic impacts were reduced by up to 60%, demonstrating a viable transition strategy for cleaner and more efficient existing diesel engines.
dc.identifier.citationDemir, U., Özer, S., Gülcan, H. E., & Tunçer, E. (2026). Experimental investigation of a diesel engine fueled with diesel–DME blends and hydrogen/acetylene port injection: Energy, exergy, emission, and enviroeconomic analysis. International Journal of Hydrogen Energy, 257, pp. 1-20. https://doi.org/10.1016/j.ijhydene.2026.156250
dc.identifier.doi10.1016/j.ijhydene.2026.156250
dc.identifier.endpage20
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.scopus2-s2.0-105044411891
dc.identifier.scopusqualityQ1
dc.identifier.startpage1
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2026.156250
dc.identifier.urihttps://hdl.handle.net/20.500.13055/1540
dc.identifier.volume257
dc.identifier.wosWOS:001823780700001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.indekslendigikaynak.otherSCI-E - Science Citation Index Expanded
dc.institutionauthorTunçer, Erdal
dc.institutionauthorid0000-0002-5212-0966
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofInternational Journal of Hydrogen Energy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectDimethyl Ether (DME)
dc.subjectHydrogen and Acetylene Enrichment
dc.subjectMulti-Fuel Combustion
dc.subjectExergy Analysis
dc.subjectEmission Characteristics
dc.subjectEnvironmental and Enviroeconomic Assessment
dc.titleExperimental investigation of a diesel engine fueled with diesel–DME blends and hydrogen/acetylene port injection: Energy, exergy, emission, and enviroeconomic analysis
dc.typeArticle
dspace.entity.typePublication

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