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Modelling lubrication oil particle emissions from heavy-duty diesel engines
KTH, School of Industrial Engineering and Management (ITM), Machine Design (Dept.). (System- O Komponentdesign)ORCID iD: 0000-0003-2489-0688
2013 (English)In: International Journal of Engine Research, ISSN 1468-0874, Vol. 14, no 2, 180-190 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2013. Vol. 14, no 2, 180-190 p.
Keyword [en]
Diesel engine, lubrication oil, particulate matter, model
National Category
Mechanical Engineering
URN: urn:nbn:se:kth:diva-122108DOI: 10.1177/1468087412452208ISI: 000317408300005ScopusID: 2-s2.0-84877884834OAI: diva2:621224

QC 20130514

Available from: 2013-05-14 Created: 2013-05-13 Last updated: 2013-05-14Bibliographically approved

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Olofsson, Ulf
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