Chromatograph Determination of Unburned Fuel Concentration in the Exhaust of a SI Engine PUC-Rio

Format:

Conference/Event

Author/Creator:

Sodré, J.R., author.

Conference Name:

SAE Brasil 96 V International Mobility Technology Conference and Exhibit (1996-10-07 : Sao Paulo, Brazil)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1996

Summary:

Gas chromatography tests have been applied to the exhaust gases of a spark ignition engine to determine the concentration of unburned fuel among the total hydrocarbons. The contribution of the unburned fuel was determined for variation of several engine parameters. The fuel tested was isooctane. The varied parameters were air-fuel ratio, engine speed, ignition timing, compression ratio, and coolant and lubricant temperature. The results have shown that the unburned fuel is responsible for most of the HC emitted, participating with 50 to 73%, depending on the engine working conditions. Methane, acetylene, ethylene, ethane, propylene, and isobutylene were also analyzed, apart from isooctane. The total contribution of the lighter species remained practically unaltered when the parameters were varied, though their individual concentrations did change. Thus, the unburned HC was seen to determine all trends of exhaust hydrocarbons

Notes:

Vendor supplied data

Publisher Number:

962370

Access Restriction:

Restricted for use by site license