ICEF2011-60124 Knock in various combustion modes in a Gasoline-fueled Automotive Engine

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F11%3A00189525" target="_blank" >RIV/68407700:21220/11:00189525 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1115/ICEF2011-60124" target="_blank" >http://dx.doi.org/10.1115/ICEF2011-60124</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1115/ICEF2011-60124" target="_blank" >10.1115/ICEF2011-60124</a>

Result language
angličtina
Original language name
ICEF2011-60124 Knock in various combustion modes in a Gasoline-fueled Automotive Engine
Original language description
Homogeneous charge compression ignition (HCCI) offers great potential for improved fuel economy and dramatically reduced NOx emissions, compared to typical spark ignition (SI) combustion. However the benefits of HCCI are limited to low and medium loads by the simultaneous occurrence of combustion instability and knock at a maximum load that is too low for conventional SI combustion. To provide smooth operation in the intermediate range between HCCI and SI requires alternative combustion strategies. One such strategy is spark-assisted compression ignition (SACI) which uses a spark plug to initiate a flame which consumes a portion of the mixture, followed by autoignition of the remaining charge. This moderates the rapid heat release and allows higher loads to be achieved without exceeding knock and stability limits. In a recent study we have explored this region and have found that spark assist at first dramatically reduces knock as load is raised above the HCCI limit; however with further load increase, knock returns, but in a form which resembles spark ignited knock rather than the HCCI knock. This study investigates in detail the knocking conditions observed in that work.
Czech name
—
Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the ASME 2011 Internal Combustion Engine Division Fall Technical Conference
ISBN
978-0-7918-4442-7
ISSN
1066-5048
e-ISSN
—
Number of pages
10
Pages from-to
441-450
Publisher name
American Society of Mechanical Engineers - ASME
Place of publication
New York
Event location
Morgantown
Event date
Oct 2, 2011
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000322089700039

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