Proceedings ArticleDOI
Direct analysis of diesel particulate-bound hydrocarbons by gas chromatography with solid sample injection
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In this paper, the contribution of unburned engine oil to diesel particulate emissions has been investigated using a rapid new technique, which involves directly loading filter-borne particulate into a modified injection port of a gas chromatograph.Abstract:
Particulate-bound hydrocarbons emitted by diesel engines have been analysed using a rapid new technique. The method involves directly loading filter-borne particulate into a modified injection port of a gas chromatograph. Hydrocarbons are vaporized in this solid sample injection system and subsequently become adsorbed on to a chromatogaphy column. The merits of this procedure are demonstrated by comparing results with those obtained using conventional gas chromatography (with liquid injection) and thermogravimetry. The contribution of unburned engine oil to diesel particulate emissions has been investigated using the new method. For a DI truck diesel engine operated over the U.S. Federal Heavy Duty Transient Cycle it is shown that 40% of the particulate appears to be derived from unburned oil. For a comparable IDI truck diesel engine this value was 28%.read more
Citations
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Journal ArticleDOI
Combustion of diesel fuel from a toxicological perspective. I. Origin of incomplete combustion products.
Paul T.J. Scheepers,R.P. Bos +1 more
TL;DR: In this paper, the authors used a chassis dynamometer to measure the particle-associated organics (PAHs) emitted from the tail pipe of a diesel engine and used this knowledge as a basis for a toxicological evaluation of diesel engine emissions.
Journal ArticleDOI
Thermogravimetric analysis of diesel particulate matter
TL;DR: In this paper, a thermal mass analyser that measures the volatile fraction (VOF) as well as the soot fraction of the particulate matter (PM) collected on a cleaned fibre glass filter is proposed.
Proceedings ArticleDOI
Effect of Engine Operating Conditions on Particle-Phase Organic Compounds in Engine Exhaust of a Heavy-Duty Direct-Injection (D.I.) Diesel Engine
TL;DR: In this paper, a dilution source sampling system was incorporated into the exhaust measurement system of a single-cylinder heavy-duty direct-injection (D.I.) diesel engine.
Journal ArticleDOI
Analysis of particulate organics in a forest atmosphere by thermodesorption GC/MS
TL;DR: In this article, aerosol samples from a forest site were collected on glass fiber filters, and particulate bound organics were analyzed by a thermodesorption GC/MS procedure.
References
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Proceedings ArticleDOI
Fuel Composition Effects on Heavy-Duty Diesel Particulate Emissions
J. C. Wall,S. K. Hoekman +1 more
TL;DR: In this article, the effects of fuel composition on diesel exhaust particulate emissions have been studied at several steady-state operating conditions using a heavy-duty laboratory engine, and the results showed that fuel sulfur was the dominant fuel factor in particulate formation.
Proceedings ArticleDOI
The contribution of engine oil to diesel exhaust particulate emissions
TL;DR: A radioactive tracer technique was developed to determine the contribution of oil from an engine sump to exhaust particulates collected on a filter as mentioned in this paper, which was applied to particulate emissions produced by an automotive diesel engine which was operated on an engine dynamometer over a range of steady state conditions.
Proceedings ArticleDOI
Particulate analysis of light duty diesel engines (IDI&DI) with particular reference to the lube oil particulate fraction
TL;DR: In this article, a target minimum lube oil particulate emission level has been defined to act as a guide line in engine development to minimize the contribution of the lube oils to total particulate matter.
Journal ArticleDOI
Application of molecular marker analysis to reconcile sources of carbonaceous particulates in tropospheric aerosols
TL;DR: In this article, molecular marker analysis has been applied to such extracts after suitable chemical separation into subfractions to trace air parcels from particular geographic regions and as tags for vehicular emissions.
Proceedings ArticleDOI
The Contribution of Engine Oil to Particulate Exhaust Emissions from Light-Duty, Diesel-Powered Vehicles
David L. Hilden,William J. Mayer +1 more
TL;DR: In this paper, an apparatus was developed for the determination of the engine oil contribution to both total and extractable particulate exhaust emissions from diesel-powered vehicles during cyclic operation on a chassis dynamometer.
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