Effect of Air-fuel Ratio on the Combustion Characteristics of Syngas (H2:CO) in Direct-injection Spark-ignition Engine

This paper presents experimental results of the effect of air-fuel ratio on the combustion characteristics of a directinjection spark-ignition engine fuelled with a syngas of H2/CO composition of equal molar ratio. The engine was operated at fully open throttle and the start of fuel injection (SOI)...

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Main Authors:	Hogas, F. Y., A. Rashid, A. Aziz, Shaharin, A. Sulaiman
Format:	Article
Language:	English
Published:	Elsevier Ltd 2014
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/8233/ http://umpir.ump.edu.my/id/eprint/8233/ http://umpir.ump.edu.my/id/eprint/8233/1/Effect_of_Air-fuel_Ratio_on_the_Combustion_Characteristics_of_Syngas_%28H2-CO%29_in_Direct-injection_Spark-ignition_Engine.pdf

id	ump-8233
recordtype	eprints
spelling	ump-82332015-03-03T09:40:22Z http://umpir.ump.edu.my/id/eprint/8233/ Effect of Air-fuel Ratio on the Combustion Characteristics of Syngas (H2:CO) in Direct-injection Spark-ignition Engine Hogas, F. Y. A. Rashid, A. Aziz Shaharin, A. Sulaiman TJ Mechanical engineering and machinery This paper presents experimental results of the effect of air-fuel ratio on the combustion characteristics of a directinjection spark-ignition engine fuelled with a syngas of H2/CO composition of equal molar ratio. The engine was operated at fully open throttle and the start of fuel injection (SOI) was set at 180o before top dead center (BTDC). The spark advance was set to the minimum advance for a maximum brake torque. The experiment was conducted at lean mixture conditions with engine speed ranging from 1500 to 2400 rev/min. The results show that syngas operated under wider operation excess air ratio (λ) as compared to CNG at the same engine speed. The minimum ignition advance for maximum brake torque and combustion duration were observed to increase with an increase in λ. The effect of air-fuel ratio was more visible on the initial stage of the combustion at lower speeds while it is visible on the rapid burning stage at higher speeds. Moreover, the combustion duration was increased with an increase in engine speed. Elsevier Ltd 2014 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/8233/1/Effect_of_Air-fuel_Ratio_on_the_Combustion_Characteristics_of_Syngas_%28H2-CO%29_in_Direct-injection_Spark-ignition_Engine.pdf Hogas, F. Y. and A. Rashid, A. Aziz and Shaharin, A. Sulaiman (2014) Effect of Air-fuel Ratio on the Combustion Characteristics of Syngas (H2:CO) in Direct-injection Spark-ignition Engine. Energy Procedia, 61. pp. 2567-2571. ISSN 1876-6102 http://dx.doi.org/10.1016/j.egypro.2014.12.047
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 Hogas, F. Y. A. Rashid, A. Aziz Shaharin, A. Sulaiman Effect of Air-fuel Ratio on the Combustion Characteristics of Syngas (H2:CO) in Direct-injection Spark-ignition Engine
description	This paper presents experimental results of the effect of air-fuel ratio on the combustion characteristics of a directinjection spark-ignition engine fuelled with a syngas of H2/CO composition of equal molar ratio. The engine was operated at fully open throttle and the start of fuel injection (SOI) was set at 180o before top dead center (BTDC). The spark advance was set to the minimum advance for a maximum brake torque. The experiment was conducted at lean mixture conditions with engine speed ranging from 1500 to 2400 rev/min. The results show that syngas operated under wider operation excess air ratio (λ) as compared to CNG at the same engine speed. The minimum ignition advance for maximum brake torque and combustion duration were observed to increase with an increase in λ. The effect of air-fuel ratio was more visible on the initial stage of the combustion at lower speeds while it is visible on the rapid burning stage at higher speeds. Moreover, the combustion duration was increased with an increase in engine speed.
format	Article
author	Hogas, F. Y. A. Rashid, A. Aziz Shaharin, A. Sulaiman
author_facet	Hogas, F. Y. A. Rashid, A. Aziz Shaharin, A. Sulaiman
author_sort	Hogas, F. Y.
title	Effect of Air-fuel Ratio on the Combustion Characteristics of Syngas (H2:CO) in Direct-injection Spark-ignition Engine
title_short	Effect of Air-fuel Ratio on the Combustion Characteristics of Syngas (H2:CO) in Direct-injection Spark-ignition Engine
title_full	Effect of Air-fuel Ratio on the Combustion Characteristics of Syngas (H2:CO) in Direct-injection Spark-ignition Engine
title_fullStr	Effect of Air-fuel Ratio on the Combustion Characteristics of Syngas (H2:CO) in Direct-injection Spark-ignition Engine
title_full_unstemmed	Effect of Air-fuel Ratio on the Combustion Characteristics of Syngas (H2:CO) in Direct-injection Spark-ignition Engine
title_sort	effect of air-fuel ratio on the combustion characteristics of syngas (h2:co) in direct-injection spark-ignition engine
publisher	Elsevier Ltd
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/8233/ http://umpir.ump.edu.my/id/eprint/8233/ http://umpir.ump.edu.my/id/eprint/8233/1/Effect_of_Air-fuel_Ratio_on_the_Combustion_Characteristics_of_Syngas_%28H2-CO%29_in_Direct-injection_Spark-ignition_Engine.pdf
first_indexed	2023-09-18T22:05:35Z
last_indexed	2023-09-18T22:05:35Z
_version_	1777414685929242624

Effect of Air-fuel Ratio on the Combustion Characteristics of Syngas (H2:CO) in Direct-injection Spark-ignition Engine

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