Extreme lean hydrogen combustion in SI engines: NOx emissions and exergy destruction analysis
| dc.authorid | 0000-0002-9193-3011 | |
| dc.authorid | 0000-0001-5868-4503 | |
| dc.authorid | 0000-0001-5201-2781 | |
| dc.authorid | 0000-0002-5212-0966 | |
| dc.authorid | 0000-0002-0044-706X | |
| dc.contributor.author | Karagöz, Yasin | |
| dc.contributor.author | Pusat, Şaban | |
| dc.contributor.author | Teksan, A. Emre | |
| dc.contributor.author | Tunçer, Erdal | |
| dc.contributor.author | Tetik, Tuğba | |
| dc.date.accessioned | 2026-09-12T09:55:55Z | |
| dc.date.available | 2026-09-12T09:55:55Z | |
| dc.date.issued | 2026 | |
| dc.department | Fakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliği Bölümü | |
| dc.description.abstract | This 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.citation | Karagöz, 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.doi | 10.1504/IJEX.2026.155922 | |
| dc.identifier.endpage | 289 | |
| dc.identifier.issn | 1742-8297 | |
| dc.identifier.issn | 1742-8300 | |
| dc.identifier.issue | 4 | |
| dc.identifier.scopusquality | Q3 | |
| dc.identifier.startpage | 278 | |
| dc.identifier.uri | https://doi.org/10.1504/IJEX.2026.155922 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.13055/1636 | |
| dc.identifier.volume | 50 | |
| dc.identifier.wos | WOS:001861682400004 | |
| dc.identifier.wosquality | Q4 | |
| dc.indekslendigikaynak | Web of Science | |
| dc.indekslendigikaynak | Scopus | |
| dc.indekslendigikaynak.other | SCI-E - Science Citation Index Expanded | |
| dc.institutionauthor | Tunçer, Erdal | |
| dc.institutionauthorid | 0000-0002-5212-0966 | |
| dc.language.iso | en | |
| dc.publisher | Inderscience Enterprises Ltd. | |
| dc.relation.ispartof | International Journal of Exergy | |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | |
| dc.rights | info:eu-repo/semantics/closedAccess | |
| dc.subject | Hydrogen | |
| dc.subject | Extreme Lean Combustion | |
| dc.subject | Cold Combustion | |
| dc.subject | Exergy | |
| dc.title | Extreme lean hydrogen combustion in SI engines: NOx emissions and exergy destruction analysis | |
| dc.type | Article | |
| dspace.entity.type | Publication |
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