Researchers: Dennis Assanis
Stani Bohac
Alberto J. López
Sponsor:
General Motors
Abstract:
Understanding hydrocarbon species present
in engine exhaust gas is important to the development of combustion
and aftertreatment technologies and strategies that reduce exhaust
emissions from gasoline and diesel engines. A methodology for
sampling and analyzing volatile and semi-volatile hydrocarbons
ranging from C1-C22
from fuels and engine exhaust was developed. Gas chromatography
is used with flame ionization detectors to identify and quantify
the hydrocarbons. Our goals are to characterize the global hydrocarbon
trends from internal combustion engines utilizing various technologies,
gain a fundamental understanding of these technologies and find
optimal strategies of reducing hydrocarbon emissions from engine
exhaust
Work
being done:
Speciation
of Isuzu 4-cylinder high speed diesel engine
Pre- and
post-catalyst hydrocarbon speciation of combustion strategies
including lean premixed combustion, rich premixed combustion
and lean conventional combustion.
Hydrocarbon
conversion efficiency speciation of a Diesels Oxidation Catalyst
(DOC) degreening.