Impact of Fuels and Ambient Conditions on IM240 Emissions

962092

10/01/1996

Event
1996 SAE International Fall Fuels and Lubricants Meeting and Exhibition
Authors Abstract
Content
This 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 min. 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.
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Details
DOI
https://doi.org/10.4271/962092
Pages
14
Citation
Beck, D., and Short, W., "Impact of Fuels and Ambient Conditions on IM240 Emissions," SAE Technical Paper 962092, 1996, https://doi.org/10.4271/962092.
Additional Details
Publisher
Published
Oct 1, 1996
Product Code
962092
Content Type
Technical Paper
Language
English