Measurement of Soot in a Diesel Combustion Chamber by Light Extinction Method and In-Cylinder Observation by Highspeed Shadowgraphy

Kontani, Kazuo; Gotoh, Shinichi

doi:10.4271/831291

Cited by 12 publications

References 4 publications

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Laser particle sizing of diesel soots in two formulated oils after different engine tests

Constans¹,

Bezot²

1994

Tribotest

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Soots of four types were extracted from two diferent formulated diesel oils, namely oil 'A ', a 15W40, and oil 'B', a 20W40, after engine (50 h) and tribological (20 h + 20 h) tests. The soots were dispersed into four diferent model solvents and base oils, and analysed by Photon Correlation Technique.In a first study, soot particle size measurements were conducted after dilution in n-heptane, Kerdane solvent, 60N and 130N base oils. The influences of engine running-time and solvent nature have been particularly considered. The second study has been devoted to the aggregation kinetic of soots in these solvents.These data are important for a better understanding of soot dispersion stability and the rheology of used oils in diesel engines.Keywords diesel, soots, Photon Correlation Technique, laser particle sizing, dynamic light scattering lNTRODUCTDN In Europe, diesel engines are increasingly popular for passenger cars because of fuel economy and tax advantages; moreover the diesel engine is the prime mover for industrial vehicles, in both Europe and the rest of the world. The problem is that even modern diesel engines produce nitrogen oxide, other noxious gases, and a lot of soot. The black carbonaceous particles of soot coming from

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