Extreme lean hydrogen combustion in SI engines: NOx emissions and exergy destruction analysis

dc.authorid0000-0002-9193-3011
dc.authorid0000-0001-5868-4503
dc.authorid0000-0001-5201-2781
dc.authorid0000-0002-5212-0966
dc.authorid0000-0002-0044-706X
dc.contributor.authorKaragöz, Yasin
dc.contributor.authorPusat, Şaban
dc.contributor.authorTeksan, A. Emre
dc.contributor.authorTunçer, Erdal
dc.contributor.authorTetik, Tuğba
dc.date.accessioned2026-09-12T09:55:55Z
dc.date.available2026-09-12T09:55:55Z
dc.date.issued2026
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliği Bölümü
dc.description.abstractThis study examines the effects of excess air coefficient (lambda) and late ignition timing on NOx emissions and exergy destruction in a hydrogen-fuelled internal combustion engine converted from a conventional diesel engine. Experiments are conducted at 1,500 rpm and 3.5 kW using two ignition timings [10 degrees and 0 degrees before top dead centre (BTDC)] and three excess air coefficients (lambda = 1.05, 2.15, and 3.75). Results indicate that late ignition (0 degrees BTDC) and ultra-lean operation (lambda = 3.75) significantly reduce NOx emissions. The impacts on brake thermal efficiency (BTE), brake specific energy consumption (BSEC), and exergy destruction are also evaluated.
dc.identifier.citationKaragöz, Y., Pusat, Ş., Teksan, A. E., Tunçer, E., & Tetik, T. (2026). Extreme lean hydrogen combustion in SI engines: NOx emissions and exergy destruction analysis. International Journal of Exergy, 50(4), pp. 278-289. https://doi.org/10.1504/IJEX.2026.155922
dc.identifier.doi10.1504/IJEX.2026.155922
dc.identifier.endpage289
dc.identifier.issn1742-8297
dc.identifier.issn1742-8300
dc.identifier.issue4
dc.identifier.scopusqualityQ3
dc.identifier.startpage278
dc.identifier.urihttps://doi.org/10.1504/IJEX.2026.155922
dc.identifier.urihttps://hdl.handle.net/20.500.13055/1636
dc.identifier.volume50
dc.identifier.wosWOS:001861682400004
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynak.otherSCI-E - Science Citation Index Expanded
dc.institutionauthorTunçer, Erdal
dc.institutionauthorid0000-0002-5212-0966
dc.language.isoen
dc.publisherInderscience Enterprises Ltd.
dc.relation.ispartofInternational Journal of Exergy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectHydrogen
dc.subjectExtreme Lean Combustion
dc.subjectCold Combustion
dc.subjectExergy
dc.titleExtreme lean hydrogen combustion in SI engines: NOx emissions and exergy destruction analysis
dc.typeArticle
dspace.entity.typePublication

Dosyalar

Lisans paketi
Listeleniyor 1 - 1 / 1
Kapalı Erişim
İsim:
license.txt
Boyut:
1.17 KB
Biçim:
Item-specific license agreed upon to submission
Açıklama: