Gasoline Compression Ignition Operation of a Heavy-Duty Engine at High Load University of Wisconsin Madison

Format:

Conference/Event

Author/Creator:

Paz, Paz, author.

Contributor:

Kokjohn, Sage

Staaden, Dan

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:

Engine experiments were carried out on a heavy-duty single-cylinder engine to investigate the effects of Gasoline Compression Ignition on emissions and performance of a heavy-duty engine operating at a high load condition. Comparisons between gasoline fueled operation and diesel fueled operation are presented using a single, near top dead center injection. Although the fuel's cetane numbers are very different, the combustion characteristics of the two fuels at high load are similar, with the gasoline-fueled case showing less than two crank angle degree longer ignition delay. Gasoline operation showed lower soot production at similar levels of NOx, initiating study of the impact of exhaust gas recirculation which spanned a range of NOx levels covering the range from minimal urea dosing to high urea dosing. A conventional soot-NOx tradeoff was found to exist with gasoline as exists with diesel. For the gasoline-fueled cases, the impact of premixed fuel was investigated and the tradeoffs between particulate matter (soot) and peak pressure rise rate is discussed. As the amount of premixed fuel is increased, the trend of increasing peak pressure rise rate and decreasing soot is seen

Notes:

Vendor supplied data

Publisher Number:

2018-01-0898

Access Restriction:

Restricted for use by site license