Impact of Lubricant Oil on Regulated Emissions of a Light-Duty Mercedes-Benz OM611 CIDI-Engine

Froelund, Kent; Owens, E.C.; Frame, Edwin A; Buckingham, J; Garbak, J.; Tseregounis, Spyros I.; Jackson, A.

doi:10.4271/2001-01-1901

Cited by 18 publications

(5 citation statements)

References 11 publications

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“…T307 is a kind of popular anti-wear additive used in oils. To investigate the impact of the anti-wear additive more clearly, the proportion of additive was increased compared to normal operating conditions, as suggested by former studies [15][16][17][18][19][20]. Previous work has shown that the cylinder pressure was similar to that experienced in normal conditions when 0.5% wt anti-wear additive was dosed into diesel [28].…”

Section: Engine Fuel Oil and Anti-wear Additivementioning

confidence: 97%

“…Recommendations from these studies include the introduction of common rails, direct injection systems, multi-injection strategies, and the development of after-treatment devices and alternative fuels [8][9][10][11][12][13][14]. Some studies also show that the kind of lubricating oil used can impact the combustion process and affect the particle emissions from both gasoline and diesel engines [15][16][17][18][19][20]. Because the oil consumption rate is substantially lower than the fuel consumption rate, it is difficult to distinguish the impact of the lubricating oil alone.…”

Section: Introductionmentioning

confidence: 95%

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Effects of an anti-wear oil additive on the size distribution, morphology, and nanostructure of diesel exhaust particles

Wang

Liang

Shu

et al. 2015

Tribology International

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Section: Engine Fuel Oil and Anti-wear Additivementioning

confidence: 97%

Section: Introductionmentioning

confidence: 95%

Effects of an anti-wear oil additive on the size distribution, morphology, and nanostructure of diesel exhaust particles

Wang

Liang

Shu

et al. 2015

Tribology International

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“…Low temperature combustion gases during the exhaust stroke may evaporate the oil transported onto the cylinder walls through the piston rings resulting in incomplete oxidation of the oil contributing to increased SOF content in the exhaust. A study has reported close to 30% of lubrication oil evaporation occurs during the late part of the exhaust and expansion stroke (Froelund et al, 2001). Most literatures report oil consumption mechanisms only in spark ignited engines and light-duty diesel engines.…”

Section: Lubrication Oil Influence On Pm Emissionsmentioning

confidence: 99%

Characterization of the composition and toxicity of particulate matter emissions from advanced heavy-duty natural gas engines

Padmavathy¹

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Heavy-duty natural gas engines compliant with the 2010 EPA emissions standards have a clear advantage over diesel engines in meeting regulations with minimal after-treatment configuration. Heavy-duty natural gas engines are largely promoted as a cleaner burning engine with respect to low PM mass emissions. However, lack of sufficient data and literature on the exhaust emissions from advanced natural gas engines and the potential adverse health effects has raised concern amongst regulatory agencies. Also, the ammonia emissions from three-way catalyst equipped heavy-duty natural gas engines could be a major contributor to the formation of secondary PM in the atmosphere This CARB funded study focuses primarily on characterizing the toxicity of the volatile fraction of PM from advanced heavy-duty natural gas engines. The objective of the study also includes characterizing the unregulated species of the exhaust together with number concentration and size distribution of ultrafine nanoparticle emissions. CNG fueled transit buses were tested on WVU's heavy-duty chassis dynamometer in Stockton, CA. A wide array of TABLE OF CONTENTS

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“…The effect of lubricating oil age on emissions has been reported in several studies [53][54][55][56][57][58][59].…”

Section: Lubricant Oil Break-inmentioning

confidence: 99%

Investigation of lubricant oil consumption and its contribution to particulate matter emissions

George¹

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The global objective of this study was to determine lubricant oil consumption as a function of engine operating conditions, and determine its contribution to particulate matter (PM) emissions in a hydrogen-fueled engine. Hydrogen offers a promising alternative for internal combustion engines owing to its clean burning properties. The success of gaseousfueled engines lies in the development and use of specially formulated and well researched lubricating oils as these oils are the only source of carbon emissions in hydrogen-fueled engines. The lubricant oil consumption can be determined in a hydrogen-fueled engine by measuring the carbonaceous emissions. This study determined lubricant oil consumption as a function of engine speed, equivalence ratio, and boost for hydrogen-fueled engine operation. The oil consumption data was fitted using multiple linear regression analysis. Elemental Carbon/Organic Carbon analysis, trace metals analysis, ions analysis, and particle size distributions at various steady state operating conditions were also performed to have an understanding of lubricant contribution to particulate emissions. The lubricant oil consumption was also measured using trace metal markers such as Ca and Zn. Oil consumption models would help in calculating ash accumulation in exhaust after-treatment devices like diesel particulate filters (DPF). The oil consumption was found to be well correlated to engine operating conditions. The particulate matter was found to be almost completely organic carbon, and the synthetic oil derived organic fraction was found to be lower in spite of its higher volatility for the conditions tested. It was found that the trace metal marker method for oil consumption determination was not a suitable method as a result of the different rates of consumption of base stocks versus additives. The particle size distributions in the case of hydrogen-fueled operation were found to be in the same order of magnitude as a diesel engine. The particle size distributions and number concentrations were found to be more influenced by the engine operating conditions and amount of oil consumed, and was not influenced by the difference in the oil volatility or the nature of the base stock (synthetic versus mineral) for the conditions tested in this study.

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Impact of Lubricant Oil on Regulated Emissions of a Light-Duty Mercedes-Benz OM611 CIDI-Engine

Cited by 18 publications

References 11 publications

Effects of an anti-wear oil additive on the size distribution, morphology, and nanostructure of diesel exhaust particles

Effects of an anti-wear oil additive on the size distribution, morphology, and nanostructure of diesel exhaust particles

Characterization of the composition and toxicity of particulate matter emissions from advanced heavy-duty natural gas engines

Investigation of lubricant oil consumption and its contribution to particulate matter emissions

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