Parameters That Affect the Impact of Auxiliary Gas Injection in a DI Diesel Engine Engine Research Center, University of Wisconsin-Madison

Format:

Book

Conference/Event

Author/Creator:

Kurtz, E. M., author.

Conference Name:

SAE 2000 World Congress (2000-03-06 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2000

Summary:

The authors used auxiliary gas injection (AGI) to increase in-cylinder mixing during the latter portion of combustion in a direct injection (DI) diesel engine in order to reduce soot emissions without affecting NOx. Experiments were conducted using various gas injection directions and compositions to explore the effect of these parameters. Simulations were employed to provide additional insight. AGI direction was found to have a profound impact on soot emissions. Researchers suggested that this was due to changes in the fuel spray-gas jet interaction with injection direction. Simulations supported this theory and suggested that the number of soot clouds affected by the gas jet may also be a factor. The oxygen content of the gas jet was also found to have an influence on emissions. Researchers found that, when the oxygen content of the gas jet was increased, soot emissions decreased. However, this was found to have a detrimental affect on NO. This was believed to stem from the fact that a portion of the injected gas was entrained causing it to have a direct impact on the composition inside the fuel spray where most of the soot chemistry takes place

Notes:

Vendor supplied data

Publisher Number:

2000-01-0233

Access Restriction:

Restricted for use by site license