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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Main Authors:	Hamada, Khalaf I., M. M., Rahman, M. A., Abdullah, R. A., Bakar, A. Rashid, A. Aziz
Format:	Article
Language:	English
Published:	Elsevier 2013
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/6287/ http://umpir.ump.edu.my/id/eprint/6287/ http://umpir.ump.edu.my/id/eprint/6287/ 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

id	ump-6287
recordtype	eprints
spelling	ump-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 http://dx.doi.org/10.1016/j.ijhydene.2013.01.092 DOI: 10.1016/j.ijhydene.2013.01.092
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
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
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
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.
title	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_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_sort	effect of mixture strength and injection timing on combustion characteristics of a direct injection hydrogen-fueled engine
publisher	Elsevier
publishDate	2013
url	http://umpir.ump.edu.my/id/eprint/6287/ http://umpir.ump.edu.my/id/eprint/6287/ http://umpir.ump.edu.my/id/eprint/6287/ 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
first_indexed	2023-09-18T22:01:55Z
last_indexed	2023-09-18T22:01:55Z
_version_	1777414455179608064

Effect of Mixture Strength and Injection Timing on Combustion Characteristics of a Direct Injection Hydrogen-Fueled Engine

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