TY - JOUR
T1 - Chromatograph determination of total and speciated hydrocarbons in the exhaust of a spark ignition engine
AU - Sodré, J. R.
PY - 2003/2/1
Y1 - 2003/2/1
N2 - 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 contri bution of unburned fuel was determined with variation in several engine parameters. The fuel tested was isooctane. The varied parameters were the 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, 50-73 per cent, depending on the engine working conditions. Methane, acetylene, ethylene, ethane, propylene and isobutylene were also analysed, as well as 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.
AB - 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 contri bution of unburned fuel was determined with variation in several engine parameters. The fuel tested was isooctane. The varied parameters were the 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, 50-73 per cent, depending on the engine working conditions. Methane, acetylene, ethylene, ethane, propylene and isobutylene were also analysed, as well as 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.
KW - Exhaust gases
KW - Gas chromatography
KW - Hydrocarbons
KW - Spark ignition engine
KW - Speciated hydrocarbons
UR - http://www.scopus.com/inward/record.url?scp=0037260485&partnerID=8YFLogxK
UR - https://journals.sagepub.com/doi/10.1177/095440700321700206
U2 - 10.1177/095440700321700206
DO - 10.1177/095440700321700206
M3 - Article
AN - SCOPUS:0037260485
SN - 0954-4070
VL - 217
SP - 125
EP - 132
JO - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
JF - Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
IS - 2
ER -