A friction and wear study of laboratory aged engine oil in the presence of diesel fuel and oxymethylene ether

Nagy, Á.; Knaup, Jan; Zsoldos, Ibolya

doi:10.1080/17515831.2018.1558026

Cited by 8 publications

(5 citation statements)

References 26 publications

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“…Research [22] confirms that ethanol generally increases wear while having a minimal impact on the aging performance of lubricant oil [23]. Therefore, it could be concluded that conventional fuel modification by adding alternative fuels results in dilution and degradation of engine oil, which affect thermodynamic efficiency as well as friction [24] and increased wear in the contact pairs and bearing surfaces of an IC engine [1].…”

Section: Introductionmentioning

confidence: 75%

Studies on Engine Oil Degradation Characteristics in a Field Test with Passenger Cars

Smigins,

Amatnieks,

Birkavs

et al. 2023

Energies

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Nowadays, a car’s engine oil change interval is an essential factor in reducing wear. The correct choice depends on various factors. This study analyzes the changes in the composition of three different engine oils (0W30, 5W30, and 5W40) during the generally accepted oil change interval (15,000 km) in gasoline and diesel cars during the post-warranty period. Commercially available low-level biofuel blends (B7 and E10) were used to power test vehicles in a field test. Engine oil samples were taken every 3000 km for more detailed analysis and tested in an accredited laboratory. The contaminants in the engine oil were determined using several testing methods: spectrometric analysis, gas chromatography, etc. Studies have shown that all used cars have an increase in the number of iron particles, an increased concentration of silicon, and also an increase in the number of nickel particles above 12,000 km. Tests also showed a sharp drop of molybdenum anti-friction additives 4.5 times and a gradual increase in fuel concentration for the Opel Insignia over 12,000 km, but over 9000 km, a significant increase in the concentration of chromium particles. Based on this research results, it is preferable to choose a maintenance interval of no more than 12,000 km for cars during the post-warranty period. In this way, the intensity of engine wear can be reduced due to the loss of adequate protective properties of the engine oil.

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Section: Introductionmentioning

confidence: 75%

Studies on Engine Oil Degradation Characteristics in a Field Test with Passenger Cars

Smigins,

Amatnieks,

Birkavs

et al. 2023

Energies

View full text Add to dashboard Cite

show abstract

“…The development of this technique was based on the performed works related to the classical methods of experimental friction research [54,56,60,64,78,79]. To deal with the tasks, a systematic approach was used in wear resistance tests.…”

Section: Methodsmentioning

confidence: 99%

“…These indicators can have a positive effect on the service life of a diesel engine. However, there are disadvantages that need to be addressed: biodiesel increases the chemical wear of diesel engine parts because it is more aggressive than conventional diesel fuel [60][61][62][63][64][65].…”

Section: Biodiesel (3rd Generation)mentioning

confidence: 99%

Method of Evaluation of Materials Wear of Cylinder-Piston Group of Diesel Engines in the Biodiesel Fuel Environment

et al. 2022

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This article concerns the method of material consumption assessment of the cylinder-piston group of diesel engines in the biodiesel environment. The obtained experimental dependences of the wear coefficients on the example of the tribounit cylinder liner and the piston ring can be used to forecast the resource use during operation under specific conditions of the engine and the environment as a whole. The article systematizes the types of biofuels, depending on the type of raw materials from which they were made, taking into account the process and application. The physical and chemical aspects of the catalysts used for biofuels were indicated. The applied experimental methods for tribological wear of the piston-cylinder pair were analyzed. B70 biodiesel was used in the research, i.e., 70% mineral diesel oil and 30% methyl esters of rapeseed oil. Experimental tribotechnical studies of the influence of biofuels on the behavior of various materials have shown that when using this type of fuel, it is necessary to replace the materials from which some parts of the cylinder-piston group are made. To solve this problem, research has been carried out on a specially designed friction machine. The novelty in the article concerns the association, based on the literature, of hydrogen consumption causing material wear in friction contacts. The mechanism of the interaction of various construction materials during such friction has been disclosed.

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“…However, in this case, a problem arises, which lies in the poor tribological properties of these light metals as well as in the lower strength compared to the cast iron construction. A similar approach was taken by Mosarof et al (2016) [31] and Nag et al (2019) [32], who proposed improving the tribological properties of cylinder liners and increased the mechanical efficiency of the engine when using biodiesel fuel through a thermal spray process and high-velocity oxyfuel coatings, the use of various nano-additives, and the addition of bioethanol to diesel-biodiesel mixtures. However, in all such works, there was no methodology for a comprehensive assessment of the reliability of fuel systems, thanks to which it is possible to compare the effectiveness of increasing the resource of internal combustion engines.…”

Section: Introductionmentioning

confidence: 93%

Modeling of Diesel Engine Fuel Systems Reliability When Operating on Biofuels

et al. 2022

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One of the main trends in the development of modern engine building is the use of biodiesel fuel, which can lead to a decrease in the reliability of engines that are not adapted to it. However, at present there is no general method for determining the reliability of fuel systems of internal combustion engines. In this paper, a reliability model of engine fuel systems when operating on biofuel has been developed. Comprehensive indicators for assessing the reliability of diesel engine fuel systems are the coefficient of readiness and technical use. The availability factor of the fuel system when operating on biodiesel fuel without the replacement of structural materials was 0.66, while with the replacement it was 0.71, and the coefficient of technical utilization without replacement of materials was 0.36, and with the replacement of 0.4. Recommendations are given to improve the reliability of the engine fuel system components. The resulting model allows for complex comparisons of the effectiveness of various ways to improve the reliability of engines running on biodiesel fuel.

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A friction and wear study of laboratory aged engine oil in the presence of diesel fuel and oxymethylene ether

Cited by 8 publications

References 26 publications

Studies on Engine Oil Degradation Characteristics in a Field Test with Passenger Cars

Studies on Engine Oil Degradation Characteristics in a Field Test with Passenger Cars

Method of Evaluation of Materials Wear of Cylinder-Piston Group of Diesel Engines in the Biodiesel Fuel Environment

Modeling of Diesel Engine Fuel Systems Reliability When Operating on Biofuels

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