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dc.contributor.author
Shapiro, Evgeniy
dc.contributor.author
Tiney, Nick
dc.contributor.author
Kyrtatos, Panagiotis
dc.contributor.author
Kotzagianni, Maria
dc.contributor.author
Bolla, Michele
dc.contributor.author
Boulouchos, Konstantinos
dc.contributor.author
Tallu, Gunesh
dc.contributor.author
Lucas, Gwendal
dc.contributor.author
Weissner, Michael
dc.date.accessioned
2019-04-23T11:27:23Z
dc.date.available
2019-04-23T10:54:45Z
dc.date.available
2019-04-23T11:27:23Z
dc.date.issued
2019-04
dc.identifier.other
10.4271/2019-01-0260
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/339039
dc.identifier.doi
10.3929/ethz-b-000339039
dc.description.abstract
The current trend in automobiles is towards electrical vehicles, but for the most part these vehicles still require an internal combustion engine to provide additional range and flexibility. These engines are under stringent emissions regulations, in particular, for the reduction of CO2. Gas engines which run lean burn combustion systems provide a viable route to these emission reductions, however designing these engines to provide sustainable and controlled combustion under lean conditions at λ=2.0 is challenging. To address this challenge, it is possible to use a scavenged Pre-Chamber Ignition (PCI) system which can deliver favorable conditions for ignition close to the spark plug. The lean charge in the main combustion chamber is then ignited by flame jets emanating from the pre-chamber nozzles. Accurate prediction of flame kernel development and propagation is essential for the analysis of PCI systems. A modelling approach is proposed based on the Dynamic Discrete Particle Ignition Kernel model coupled with the G-equation combustion model. The model is validated for an air/methane academic benchmark. The approach is then applied to the investigation of performance of three pre-chamber designs developed within Horizon 2020 GASON project in conjunction with the experimental investigation of these pre-chambers mounted on Rapid Compression Expansion Machine (RCEM). The investigated pre-chamber designs vary with respect to the tangential nozzle angle and volume. The study focusses on a lean limit of the proposed system’s operation with the main charge at λ=2.0 and a variation of pre-chamber design and scavenging level. The comparison of the simulation results with the experimental observations demonstrates good accuracy of the developed model. In addition, the combined experimental and modelling provides insights into the effect of pre-chamber geometry on potential performance.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
SAE International
en_US
dc.title
Experimental and Numerical Analysis of Pre-Chamber Combustion Systems for Lean Burn Gas Engines
en_US
dc.type
Conference Paper
dc.date.published
2019-04-02
ethz.journal.title
SAE Technical Paper Series
ethz.pages.start
2019-01-0260
en_US
ethz.size
12 p.
en_US
ethz.version.deposit
acceptedVersion
en_US
ethz.event
18th World Congress Experience of the Society of Automotive Engineers (WCX SAE 2019)
en_US
ethz.event.location
Detroit, MI, USA
en_US
ethz.event.date
April 9-11, 2019
en_US
ethz.grant
Gas-Only internal combustion engines
en_US
ethz.publication.place
Warrendale, PA
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02627 - Institut für Energietechnik / Institute of Energy Technology::03611 - Boulouchos, Konstantinos / Boulouchos, Konstantinos
en_US
ethz.grant.agreementno
652816
ethz.grant.fundername
SBFI
ethz.grant.funderDoi
10.13039/501100007352
ethz.grant.program
H2020
ethz.date.deposited
2019-04-23T10:54:47Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Embargoed
en_US
ethz.date.embargoend
2019-10-02
ethz.rosetta.installDate
2019-04-23T11:27:37Z
ethz.rosetta.lastUpdated
2019-04-23T11:27:37Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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