Comparative study on Gasoline-Ethanol Dual Fuel Injection Strategies in a Small Spark Ignition Engine

Al-Muhsen, N; Hong, G

Comparative study on Gasoline-Ethanol Dual Fuel Injection Strategies in a Small Spark Ignition Engine

Al-Muhsen, N

Hong, G

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Publisher:: The Combustion Institute
Publication Type:: Conference Proceeding
Citation:: Proceedings of the Australian Combustion Symposium, 2015, pp. 228 - 231
Issue Date:: 2015-12-09

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Field	Value	Language
dc.contributor.author	Al-Muhsen, N https://orcid.org/0000-0001-5606-0131	en_US
dc.contributor.author	Hong, G https://orcid.org/0000-0002-1905-1161	en_US
dc.date	2015-12-07	en_US
dc.date.available	2015-11-10	en_US
dc.date.issued	2015-12-09	en_US
dc.identifier.citation	Proceedings of the Australian Combustion Symposium, 2015, pp. 228 - 231	en_US
dc.identifier.issn	1839-8170	en_US
dc.identifier.uri	http://hdl.handle.net/10453/46293
dc.description.abstract	Combined ethanol as oxygenated fuel with gasoline fuel can have significant synergies with a small spark ignition engines (SSIE) due to the higher ethanol’s latent heat of vaporization, laminar flame speed and research octane number than that of gasoline. This paper reports an experimental investigation to the effect of three dual injection strategies, gasoline port injection (GPI) plus ethanol direct injection (EDI), GPI plus gasoline direct injection (GDI) and GPI only, on the engine performance and the emissions. Experiments were conducted on a modified 249cm3 single cylinder spark ignition engine at a stoichiometric air-fuel ratio (λ=1), constant engine speed and medium engine load. Five injection volumetric percentages were chosen; 0, 25, 50, 75 and 100%. Among the three injection strategies EDI+GPI demonstrated the best engine performance in terms of the increase of IMEP and nitric oxide emission reduction and GPI the second. However, when the percentage of the fuel directly injected increased to 44% for ethanol and 76% to gasoline, the combustion becomes more unstable and more CO and HC emitted than that in GPI only.	en_US
dc.publisher	The Combustion Institute	en_US
dc.relation.ispartof	Proceedings of the Australian Combustion Symposium	en_US
dc.title	Comparative study on Gasoline-Ethanol Dual Fuel Injection Strategies in a Small Spark Ignition Engine	en_US
dc.type	Conference Proceeding
utslib.location	Australia	en_US
utslib.location.activity	The University of Melbourne	en_US
utslib.for	0902 Automotive Engineering	en_US
utslib.for	0913 Mechanical Engineering	en_US
utslib.for	091305 Energy Generation, Conversion and Storage Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	/University of Technology Sydney/Students
utslib.copyright.status	open_access
pubs.consider-herdc	true	en_US
pubs.finish-date	2015-12-09	en_US
pubs.place-of-publication	Australia	en_US
pubs.publication-status	Published	en_US
pubs.start-date	2015-12-07	en_US

Abstract:

Combined ethanol as oxygenated fuel with gasoline fuel can have significant synergies with a small spark ignition engines (SSIE) due to the higher ethanol’s latent heat of vaporization, laminar flame speed and research octane number than that of gasoline. This paper reports an experimental investigation to the effect of three dual injection strategies, gasoline port injection (GPI) plus ethanol direct injection (EDI), GPI plus gasoline direct injection (GDI) and GPI only, on the engine performance and the emissions. Experiments were conducted on a modified 249cm3 single cylinder spark ignition engine at a stoichiometric air-fuel ratio (λ=1), constant engine speed and medium engine load. Five injection volumetric percentages were chosen; 0, 25, 50, 75 and 100%. Among the three injection strategies EDI+GPI demonstrated the best engine performance in terms of the increase of IMEP and nitric oxide emission reduction and GPI the second. However, when the percentage of the fuel directly injected increased to 44% for ethanol and 76% to gasoline, the combustion becomes more unstable and more CO and HC emitted than that in GPI only.

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http://hdl.handle.net/10453/46293