Characterisation of soot-laden oils by quantitative voluminosity measurements

Autor:	T. P. Hansen, P. R. Ryason
Rok vydání:	1995
Předmět:	Materials science Petroleum engineering Rheometry Mechanical Engineering Surfaces and Interfaces medicine.disease_cause Diesel engine Combustion Soot Surfaces Coatings and Films Shear rate Viscosity Diesel fuel Mechanics of Materials medicine Crankcase
Zdroj:	Tribotest. 2:1-12
ISSN:	1557-685X 1354-4063
DOI:	10.1002/tt.3020020102
Popis:	Soot-related viscosity increase has long been recognised as a potential problem in diesel engine operation. Proposed emissions regulations have led to investigations of changes in combustion to reduce soot emissions. Some of these changes, though effective in reducing exhaust soot emissions, result in increased amounts of soot in the crankcase. With a potential for a renewed emphasis on control of soot-related crankcase oil viscosity increase, methods of characterising soot-laden oils have become desirable. In this paper, a method is described to compare viscosity increases in different oils produced by soot in a given engine. Precision controlled shear rate rheometry can be used to determine the voluminosity of an engine soot in an oil. Comparison of voluminosities ranks oils quantitatively.
Databáze:	OpenAIRE
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