ព្រឹត្តិបត្រស្រាវជ្រាវ (Research Articles)

Title
A review on the effect of bioethanol dilution on the properties and performance of automotive lubricants in gasoline engines
Author(s)LS Khuong, NWM Zulkifli, HH Masjuki, E Niza Mohamad, A Arslan, MH Mosarof, A Azham
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Keywords
Abstract

Owing to the growing concern over the depletion of fossil fuels and the increasing rate of greenhouse gas emissions which will lead to global warming, many researchers are now dedicated to producing alternative biofuels in order to help address the above-mentioned issues. Bioethanol is one of the biofuels which has gained much attention for use in existing gasoline engines and nowadays, bioethanol is blended with gasoline at higher proportions since the use of bioethanol helps reduce exhaust emissions such as soot, carbon oxides and unburned hydrocarbons. However, the use of bioethanol has undesirable effects on the tribological properties of the fuel blend, and it is possible that the automotive lubricant will be contaminated with diluted oxygenated bioethanol during engine operations. Moreover, the addition of bioethanol into gasoline alters the properties of the fuel, which in turn affects the vehicle performance. Since bioethanol has a significantly higher boiling point and latent heat of vaporization compared to gasoline, it is likely that the level of bioethanol dilution in the automotive lubricant will increase significantly, which in turn degrades the quality of the lubricant to protect the engine components against friction and wear. The purpose of this review paper is to highlight the physicochemical properties of bioethanol and its blends as well as the effect of bioethanol dilution on the properties and performance of automotive lubricants in gasoline engines. Based on the key findings, it can be concluded that bioethanol dilution has a significant effect on the properties of automotive lubricants, particularly on oil consumption, corrosion, wear and sludge, which will lead to engine failure. However, the contamination of automotive lubricants can be prevented by the addition of additives such as dispersants, detergents or antioxidants, which will improve the lubricity and performance of the engine oil.

JournalRSC Advances
Publisher/InstitutionRoyal Society of Chemistry
Field/FacultyAutomotive Engineering
Publication Year2016
Volumn6
Issue71
Pages66847-66869
DOIhttps://doi.org/10.1039/C6RA10003A
Recommended CitationLS Khuong, NWM Zulkifli, HH Masjuki, E Niza Mohamad, A Arslan, MH Mosarof, A Azham. (2016). A review on the effect of bioethanol dilution on the properties and performance of automotive lubricants in gasoline engines. RSC Advances, 6, 66847-66869
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