Effect of spark assistance on improving cyclic stability of auto-ignition at light load in a small two-stroke engine

Wijesinghe, J; Hong, G

Effect of spark assistance on improving cyclic stability of auto-ignition at light load in a small two-stroke engine

Wijesinghe, J Hong, G

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Publication Type:: Conference Proceeding
Citation:: SAE Technical Papers, 2009
Issue Date:: 2009-12-01

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Field	Value	Language
dc.contributor.author	Wijesinghe, J	en_US
dc.contributor.author	Hong, G https://orcid.org/0000-0002-1905-1161	en_US
dc.date.issued	2009-12-01	en_US
dc.identifier.citation	SAE Technical Papers, 2009	en_US
dc.identifier.uri	http://hdl.handle.net/10453/11230
dc.description.abstract	Cyclic instability is a common problem in the operation of conventional two-stroke spark-ignition engines. Previous research has shown that auto-ignition (AI) could help solve this problem. However, at light engine loads, even under AI, the cyclic instability may still be significant due to the difficulty in maintaining the minimum temperature required by AI. Despite the benefits brought by AI in fuel consumption and emission reduction, the high level of cycle-to-cycle variation at light load may delay the realization of AI operation in engine products. To solve this problem, spark assistance has been identified as a cost effective and convenient way to improve the stability of AI operation at light load. This paper aims to report our experimental investigation to the effectiveness of spark assistance on cyclic variation of AI at light engine load conditions. Copyright © 2009 SAE International.	en_US
dc.relation.ispartof	SAE Technical Papers	en_US
dc.title	Effect of spark assistance on improving cyclic stability of auto-ignition at light load in a small two-stroke engine	en_US
dc.type	Conference Proceeding
utslib.for	091305 Energy Generation, Conversion and Storage Engineering	en_US
utslib.for	0902 Automotive Engineering	en_US
utslib.for	0910 Manufacturing Engineering	en_US
dc.location.activity	Penang, Malaysia	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
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US

Abstract:

Cyclic instability is a common problem in the operation of conventional two-stroke spark-ignition engines. Previous research has shown that auto-ignition (AI) could help solve this problem. However, at light engine loads, even under AI, the cyclic instability may still be significant due to the difficulty in maintaining the minimum temperature required by AI. Despite the benefits brought by AI in fuel consumption and emission reduction, the high level of cycle-to-cycle variation at light load may delay the realization of AI operation in engine products. To solve this problem, spark assistance has been identified as a cost effective and convenient way to improve the stability of AI operation at light load. This paper aims to report our experimental investigation to the effectiveness of spark assistance on cyclic variation of AI at light engine load conditions. Copyright © 2009 SAE International.

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http://hdl.handle.net/10453/11230