Effect of Mixture Strength and Injection Timing on Combustion Characteristics of a Direct Injection Hydrogen-Fueled Engine
An experimental investigation was performed to characterize the hydrogen combustion in a spark-ignition direct-injection engine. It was focused on the effects of mixture strength and injection timing on the characteristics of hydrogen combustion. For this purpose, the practical tests were carried ou...
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| Language: | en |
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Elsevier
2013
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| Online Access: | http://umpir.ump.edu.my/id/eprint/6287/1/Effect_of_mixture_strength_and_injection_timing_on_combustion_characteristics_of_a_direct_injection_hydrogen-fueled_engine.pdf http://umpir.ump.edu.my/id/eprint/6287/ http://dx.doi.org/10.1016/j.ijhydene.2013.01.092 |
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| author | Hamada, Khalaf I. M. M., Rahman M. A., Abdullah R. A., Bakar A. Rashid, A. Aziz |
| author_facet | Hamada, Khalaf I. M. M., Rahman M. A., Abdullah R. A., Bakar A. Rashid, A. Aziz |
| author_sort | Hamada, Khalaf I. |
| building | UMPSA Library |
| collection | Institutional Repository |
| content_provider | Universiti Malaysia Pahang Al-Sultan Abdullah |
| content_source | UMPSA Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | An experimental investigation was performed to characterize the hydrogen combustion in a spark-ignition direct-injection engine. It was focused on the effects of mixture strength and injection timing on the characteristics of hydrogen combustion. For this purpose, the practical tests were carried out on an experimental test rig. It is originally designed for optimization of the direct-injection natural-gas engine. The experimental test-rig results comprised the traces for the in-cylinder pressure, mass fraction burned, and heat release rate under the different operation conditions. The results obtained show that the richer mixture condition produced higher pressure trends at all tested points. Besides that, it exhibited a faster rate of increase in combustion rate due to the increase of flame speed. However, the combustion characteristics deteriorated due to the lack of mixture stratification with earlier injection timing. It is concluded that direct-injection timing is essential to achieve better combustion performance. Moreover, retarding the spark ignition timing is also crucial to avoid abnormal combustion in the case of a richer mixture and early start on injection. |
| format | Article |
| id | my.ump.umpir.6287 |
| institution | Universiti Malaysia Pahang |
| language | en |
| publishDate | 2013 |
| publisher | Elsevier |
| record_format | eprints |
| spelling | my.ump.umpir.62872018-01-25T01:57:19Z http://umpir.ump.edu.my/id/eprint/6287/ Effect of Mixture Strength and Injection Timing on Combustion Characteristics of a Direct Injection Hydrogen-Fueled Engine Hamada, Khalaf I. M. M., Rahman M. A., Abdullah R. A., Bakar A. Rashid, A. Aziz TJ Mechanical engineering and machinery An experimental investigation was performed to characterize the hydrogen combustion in a spark-ignition direct-injection engine. It was focused on the effects of mixture strength and injection timing on the characteristics of hydrogen combustion. For this purpose, the practical tests were carried out on an experimental test rig. It is originally designed for optimization of the direct-injection natural-gas engine. The experimental test-rig results comprised the traces for the in-cylinder pressure, mass fraction burned, and heat release rate under the different operation conditions. The results obtained show that the richer mixture condition produced higher pressure trends at all tested points. Besides that, it exhibited a faster rate of increase in combustion rate due to the increase of flame speed. However, the combustion characteristics deteriorated due to the lack of mixture stratification with earlier injection timing. It is concluded that direct-injection timing is essential to achieve better combustion performance. Moreover, retarding the spark ignition timing is also crucial to avoid abnormal combustion in the case of a richer mixture and early start on injection. Elsevier 2013 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/6287/1/Effect_of_mixture_strength_and_injection_timing_on_combustion_characteristics_of_a_direct_injection_hydrogen-fueled_engine.pdf Hamada, Khalaf I. and M. M., Rahman and M. A., Abdullah and R. A., Bakar and A. Rashid, A. Aziz (2013) Effect of Mixture Strength and Injection Timing on Combustion Characteristics of a Direct Injection Hydrogen-Fueled Engine. International Journal of Hydrogen Energy, 38 (9). pp. 3793-3801. ISSN 0360-3199. (Published) http://dx.doi.org/10.1016/j.ijhydene.2013.01.092 DOI: 10.1016/j.ijhydene.2013.01.092 |
| spellingShingle | TJ Mechanical engineering and machinery Hamada, Khalaf I. M. M., Rahman M. A., Abdullah R. A., Bakar A. Rashid, A. Aziz Effect of Mixture Strength and Injection Timing on Combustion Characteristics of a Direct Injection Hydrogen-Fueled Engine |
| title | Effect of Mixture Strength and Injection Timing on Combustion Characteristics of a Direct Injection Hydrogen-Fueled Engine |
| title_full | Effect of Mixture Strength and Injection Timing on Combustion Characteristics of a Direct Injection Hydrogen-Fueled Engine |
| title_fullStr | Effect of Mixture Strength and Injection Timing on Combustion Characteristics of a Direct Injection Hydrogen-Fueled Engine |
| title_full_unstemmed | Effect of Mixture Strength and Injection Timing on Combustion Characteristics of a Direct Injection Hydrogen-Fueled Engine |
| title_short | Effect of Mixture Strength and Injection Timing on Combustion Characteristics of a Direct Injection Hydrogen-Fueled Engine |
| title_sort | effect of mixture strength and injection timing on combustion characteristics of a direct injection hydrogen-fueled engine |
| topic | TJ Mechanical engineering and machinery |
| url | http://umpir.ump.edu.my/id/eprint/6287/1/Effect_of_mixture_strength_and_injection_timing_on_combustion_characteristics_of_a_direct_injection_hydrogen-fueled_engine.pdf http://umpir.ump.edu.my/id/eprint/6287/ http://dx.doi.org/10.1016/j.ijhydene.2013.01.092 |
| url_provider | http://umpir.ump.edu.my/ |