Real Fuel Effects on Low Speed Pre-Ignition Southwest Research Institute

Format:

Conference/Event

Author/Creator:

Kocsis, Kocsis, author.

Contributor:

Anderson, Garrett

Briggs, Thomas

Conference Name:

WCX World Congress Experience (2018-04-10 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2018

Summary:

AbstractTo better understand real fuel effects on LSPI, a matrix was developed to vary certain chemical and physical properties of gasoline. The primary focus of the study was the impact of paraffinic, olefinic, and aromatic components upon LSPI. Secondary goals of this testing were to study the impact of ethanol content and fuel volatility as defined by the T90 temperature. The LSPI rate increased with ethanol content but was insensitive to olefin content. Additionally, increased aromatic content uniformly led to increased LSPI rates. For all blends, lower T90 temperatures resulted in decreased LSPI activity. The correlation between fuel octane (as RON or MON) suggests that octane itself does not play a role; however, the sensitivity of the fuel (RON-MON) does have some correlation with LSPI. Finally, the results of this analysis show that there is no correlation between the laminar flame speed of a fuel and the LSPI rate. These findings are significant as there are known regions of the global fuel market which can have high aromatic content in gasoline and it should be expected that real-world LSPI occurrence will be more likely in these regions

Notes:

Vendor supplied data

Publisher Number:

2018-01-1456

Access Restriction:

Restricted for use by site license