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dc.contributor.authorHlaing, Ponnya
dc.contributor.authorEcheverri Marquez, Manuel
dc.contributor.authorShankar, Vijai
dc.contributor.authorCenker, Emre
dc.contributor.authorBen Houidi, Moez
dc.contributor.authorJohansson, Bengt
dc.date.accessioned2019-12-16T12:13:36Z
dc.date.available2019-12-16T12:13:36Z
dc.date.issued2019-09-09
dc.identifier.citationHlaing, P., Echeverri Marquez, M., Bhavani Shankar, V. S., Cenker, E., Ben Houidi, M., & Johansson, B. (2019). A Study of Lean Burn Pre-Chamber Concept in a Heavy Duty Engine. SAE Technical Paper Series. doi:10.4271/2019-24-0107
dc.identifier.doi10.4271/2019-24-0107
dc.identifier.urihttp://hdl.handle.net/10754/660610
dc.description.abstractDue to stringent emission standards, the demand for higher efficiency engines has been unprecedentedly high in recent years. Among several existing combustion modes, pre-chamber spark ignition (PCSI) emerges to be a potential candidate for high-efficiency engines. Research on the pre-chamber concept exhibit higher indicated efficiency through lean limit extension while maintaining the combustion stability. In this study, a unique pre-chamber geometry was tested in a single-cylinder heavy-duty engine at low load lean conditions. The geometry features a narrow throat, which was designed to be packaged inside a commercial diesel injector pocket. The pre-chamber was fueled with methane while the main chamber was supplied with an ethanol/air mixture. The 'avalanche activated combustion' or L.A.G. process was explored which relies on enriched pre-chamber combustion to generate radicals which, upon being discharged into the main combustion chamber, will trigger ignition sites distributed in the combustion chamber, thus achieving fast combustion. The ability of PCSI concept to enhance the lean limit with progressive enrichment in the pre-chamber was demonstrated. In addition, passive pre-chamber concept, where no additional fuel was injected into pre-chambers, was also explored and compared against the fueled pre-chamber experiments. The processed data features fast combustion rates with high combustion stability with the evident extension of the lean combustion limit. The engine-out emissions, measured by the exhaust gas analyzer, were reported together with the combustion data.
dc.description.sponsorshipThe paper is based upon work supported by Saudi Aramco Research and Development Center FUELCOM 3 program under Master Research Agreement Number 6600024505/01. FUELCOM (Fuel Combustion for Advanced Engines), is a collaborative research undertaking between Saudi Aramco and KAUST intended to address the fundamental aspects of hydrocarbon fuel combustion in engines, and develop fuel/ engine design tools suitable for advance combustion modes.The author would like to thank King Abdullah University of Science and Technology (KAUST) and the Clean Combustion Research Center (CCRC) for lab facilities and research support. Last but not least, the authors would like to convey gratitudetowards the IC Engine Lab Safety Supervisor Adrian I. Ichim and the lab technician Riyad H. Jambi for their kind input and assistance in performing the experiments.
dc.publisherSAE International
dc.relation.urlhttps://www.sae.org/content/2019-24-0107/
dc.rightsArchived with thanks to SAE International
dc.titleA Study of Lean Burn Pre-Chamber Concept in a Heavy Duty Engine
dc.typeConference Paper
dc.contributor.departmentClean Combustion Research Center
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.conference.date2019-09-15 to 2019-09-19
dc.conference.nameSAE 14th International Conference on Engines and Vehicles, ICE 2019
dc.conference.locationCapri, ITA
dc.eprint.versionPost-print
dc.contributor.institutionSaudi Aramco
kaust.personHlaing, Ponnya
kaust.personEcheverri Marquez, Manuel
kaust.personShankar, Vijai
kaust.personBen Houidi, Moez
kaust.personJohansson, Bengt
refterms.dateFOA2019-12-29T08:41:08Z
kaust.acknowledged.supportUnitClean Combustion Research Center (CCRC)


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