Towards a Model for Engine Oil Hydrocarbon Particulate Matter

Tornehed, Petter; Olofsson, Ulf

doi:10.4271/2010-01-2098

Cited by 7 publications

(13 citation statements)

References 11 publications

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“…The linearity is justified by the findings of Essig et al 22 Their experiment, which included modifying the cylinder system to change the oil consumption, resulted in proportional changes in oil-related particles. The oil consumption is multiplied by an oil SR, which is defined as oil-related hydrocarbon particles divided by the oil consumption and modelled according to Tornehed and Olofsson 26 (Figure 3).…”

Section: Hydrocarbon Oil Particle Emissionsmentioning

confidence: 99%

“…The oil consumed via evaporation (VOC) can be directly oxidized/combusted, while the LOC (reverse blow-by, top land scraping and throw-off oil consumption) must be evaporated before being oxidized/combusted. Input data in the form of crank-angle-resolved oil consumption divided into VOC and LOC have been calculated by Tornehed and Olofsson 26 using the AVL EXCITE Piston and Rings (EPR) software. 31…”

Section: Hydrocarbon Oil Particle Emissionsmentioning

confidence: 99%

“…Tornehed and Olofsson 26 ran tests on a Scania six-cylinder diesel engine to tune the model. This engine was developed to be able to meet the Euro 5 standard without exhaust after-treatment.…”

Section: Hydrocarbon Oil Particle Emissionsmentioning

confidence: 99%

“…The model is based on the contributions of hydrocarbon, ash, carbon and sulphate particles. 26–29 As a basis for discussion, the present paper uses the current Euro 5 emission level standard, which can be met without exhaust after-treatment. 30…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modelling lubrication oil particle emissions from heavy-duty diesel engines

Tornehed

Olofsson

2012

International Journal of Engine Research

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The impact of lubrication oil on particle exhaust emissions has attracted increasing attention as emissions of fuel-derived particles have been reduced. This paper presents a model for assessing the oil-related exhaust particle emissions of heavy-duty diesel engines. The model contains four sub-models describing the hydrocarbon, ash, carbon and sulphate particles. All sub-models were developed based on the results of a literature review, complemented by controlled engine tests to fill the knowledge gaps and verify assumptions where necessary. Exhaust after-treatment devices, such as diesel particulate filters, are not included in the model at this stage; in engines equipped with such devices, the modelling results could be used to assess the input of oil-related particulate matter into the exhaust after-treatment system or serve as a basis for further development. The modelling results indicate that the contribution of oil to airborne exhaust particles is substantial under low-load and motoring conditions. Reducing oil consumption is an effective way to reduce oil-related particle emissions.

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Section: Hydrocarbon Oil Particle Emissionsmentioning

confidence: 99%

Section: Hydrocarbon Oil Particle Emissionsmentioning

confidence: 99%

Section: Hydrocarbon Oil Particle Emissionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modelling lubrication oil particle emissions from heavy-duty diesel engines

Tornehed

Olofsson

2012

International Journal of Engine Research

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Effect of lubricating oil characteristics on solid particle number and CO2 emissions of a Euro 6 light-duty compressed natural gas fuelled vehicle

Lähde

Giechaskiel

Martini

et al. 2022

Fuel

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Heavy Duty Diesel Exhaust Particles during Engine Motoring Formed by Lube Oil Consumption

Karjalainen

Ntziachristos

Murtonen

et al. 2016

Environ. Sci. Technol.

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This study reports high numbers of exhaust emissions particles during engine motoring. Such particles were observed in the exhaust of two heavy duty vehicles with no diesel particle filter (DPF), driven on speed ramp tests and transient cycles. A significant fraction of these particles was nonvolatile in nature. The number-weighted size distribution peak was below 10 nm when a thermodenuder was used to remove semivolatile material, growing up to 40 nm after semivolatile species condensation. These particles were found to contribute to 9-13% of total particle number emitted over a complete driving cycle. Engine motoring particles originated from lube oil and evidence suggests that these are of heavy organic or organometallic material. Particles of similar characteristics have been observed in the core particle mode during normal fired engine operation. Their size and chemical character has implications primarily on the environmental toxicity of non-DPF diesel and, secondarily, on the performance of catalytic devices and DPFs. Lube oil formulation measures can be taken to reduce the emission of such particles.

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Towards a Model for Engine Oil Hydrocarbon Particulate Matter

Cited by 7 publications

References 11 publications

Modelling lubrication oil particle emissions from heavy-duty diesel engines

Modelling lubrication oil particle emissions from heavy-duty diesel engines

Effect of lubricating oil characteristics on solid particle number and CO2 emissions of a Euro 6 light-duty compressed natural gas fuelled vehicle

Heavy Duty Diesel Exhaust Particles during Engine Motoring Formed by Lube Oil Consumption

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