Assessment of late pilot injection effect in dual-fuel combustion
In this paper, the effect of late injection on combustion and emission levels has been investigated on a single cylinder compression ignition engine operated in dual-fuel mode injecting methane along the intake duct and igniting it through a pilot fuel injected directly into the combustion chamber....
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2020-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/57/e3sconf_ati2020_06010.pdf |
| _version_ | 1818564852784824320 |
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| author | Caricato Antonio Carlucci Antonio Paolo Ficarella Antonio Strafella Luciano |
| author_facet | Caricato Antonio Carlucci Antonio Paolo Ficarella Antonio Strafella Luciano |
| author_sort | Caricato Antonio |
| collection | DOAJ |
| description | In this paper, the effect of late injection on combustion and emission levels has been investigated on a single cylinder compression ignition engine operated in dual-fuel mode injecting methane along the intake duct and igniting it through a pilot fuel injected directly into the combustion chamber. During the tests, the amount of pilot fuel injected per cycle has been kept constant, while the amount of methane has been varied on three levels. Therefore, three levels of engine load have been tested, while speed has been kept constant equal to 1500rpm. Pilot injection pressure has been varied on three set points, namely 500, 1000 and 1500 bar. For each engine load and injection pressure, pilot injection timing has been swept on a very broad range of values, spanning from very advanced to very late values. The analysis of heat release rate indicates that MK-like conditions are established in dual-fuel mode with late pilot injection. In these conditions, pollutant species, and NOx levels in particular, are significantly reduced without penalization – and in several conditions with improvement – on fuel conversion efficiency. |
| first_indexed | 2024-12-14T01:33:57Z |
| format | Article |
| id | doaj.art-adc65403fe6d4880936b00ced6560be9 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-14T01:33:57Z |
| publishDate | 2020-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-adc65403fe6d4880936b00ced6560be92022-12-21T23:21:56ZengEDP SciencesE3S Web of Conferences2267-12422020-01-011970601010.1051/e3sconf/202019706010e3sconf_ati2020_06010Assessment of late pilot injection effect in dual-fuel combustionCaricato Antonio0Carlucci Antonio Paolo1Ficarella Antonio2Strafella Luciano3Department of Engineering for Innovation, University of SalentoDepartment of Engineering for Innovation, University of SalentoDepartment of Engineering for Innovation, University of SalentoDepartment of Engineering for Innovation, University of SalentoIn this paper, the effect of late injection on combustion and emission levels has been investigated on a single cylinder compression ignition engine operated in dual-fuel mode injecting methane along the intake duct and igniting it through a pilot fuel injected directly into the combustion chamber. During the tests, the amount of pilot fuel injected per cycle has been kept constant, while the amount of methane has been varied on three levels. Therefore, three levels of engine load have been tested, while speed has been kept constant equal to 1500rpm. Pilot injection pressure has been varied on three set points, namely 500, 1000 and 1500 bar. For each engine load and injection pressure, pilot injection timing has been swept on a very broad range of values, spanning from very advanced to very late values. The analysis of heat release rate indicates that MK-like conditions are established in dual-fuel mode with late pilot injection. In these conditions, pollutant species, and NOx levels in particular, are significantly reduced without penalization – and in several conditions with improvement – on fuel conversion efficiency.https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/57/e3sconf_ati2020_06010.pdf |
| spellingShingle | Caricato Antonio Carlucci Antonio Paolo Ficarella Antonio Strafella Luciano Assessment of late pilot injection effect in dual-fuel combustion E3S Web of Conferences |
| title | Assessment of late pilot injection effect in dual-fuel combustion |
| title_full | Assessment of late pilot injection effect in dual-fuel combustion |
| title_fullStr | Assessment of late pilot injection effect in dual-fuel combustion |
| title_full_unstemmed | Assessment of late pilot injection effect in dual-fuel combustion |
| title_short | Assessment of late pilot injection effect in dual-fuel combustion |
| title_sort | assessment of late pilot injection effect in dual fuel combustion |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2020/57/e3sconf_ati2020_06010.pdf |
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