Impact of Fuels and Ambient Conditions on IM240 Emissions General Motors Corporation

Format:

Conference/Event

Author/Creator:

Beck, Donald D., author.

Conference Name:

1996 SAE International Fall Fuels and Lubricants Meeting and Exhibition (1996-10-14 : San Antonio, Texas, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1996

Summary:

AbstractThis paper describes an investigation of the impact of various fuels, soak and test conditions on the emissions performance of a MY1996 Corsica TLEV on an IM240 test. The study also probes the impact of turning the engine off just prior to the IM240 test under these conditions.We found using a Wintertime federal fuel with a sulfur content of 485 ppm that the HC, CO and NOx emissions were increased when compared with similar tests at the same temperature of 16°C using the California Phase 2 fuel with a sulfur content of 32 ppm. When tests using the Wintertime fuel were performed at temperatures lower than 16°C, the emissions increased dramatically.In control tests, the engine ran at a constant idle for 15 minutes prior to the IM240 with no engine turn-off. However, when the engine was turned-off just prior to the IM240, slight increases in tailpipe emissions resulted at 23°C and 16°C using California RFG. Shut-off of the engine using a federal Wintertime fuel, however, resulted in significantly higher tailpipe emissions at 16°C and 9°C. At -7°C, the engine shut-off had little effect on tailpipe IM240 emissions. The individual impacts of fuels, test temperature and engine shut-off can be separated and are discussed in this paper

Notes:

Vendor supplied data

Publisher Number:

962092

Access Restriction:

Restricted for use by site license