The Initial Boiling Point of Lubricating Oil as an Indicator for the Assessment of the Possible Contamination of Lubricating Oil with Diesel Oil

Chybowski, Leszek

doi:10.3390/en15217927

Cited by 13 publications

(9 citation statements)

References 17 publications

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“…To perform the test, the Flashpoint Pensky-Martens Semi-Automatic apparatus was used (Walter Herzog GmbH, Lauda-Königshofen, Germany). According to the latest certification results of the apparatus, the measurement accuracy is 0.10% and the repeatability is 0.10 K (0.10 • C) for the range 363.15-643.15 K (90-370 • C), while this accuracy is 0.35% and the repeatability is 0.05 K (0.05 • C) for the range 268.15-383.15 K (−5-110 • C) [15].…”

Section: Ignition Properties Of the Oil Diluted With Diesel Oilmentioning

confidence: 85%

“…The results of the experiment are included in Appendix B, with the comparative data in the associated dataset obtained from earlier studies [24]. Slight differences in the data indicate that these sources (for the same measurement points) result from a slightly different composition of the diesel oil used in the current experiment.…”

Section: Pair Of Materialsmentioning

confidence: 98%

“…According to EN IEC 60079-10-1 [39], the flash point of a material is the lowest liquid temperature at which, under certain standardized conditions, a liquid emits vapors in a quantity that is capable of forming an ignitable vapor/air mixture. If the substance tested is the lubricating oil contaminated with the diesel oil in the amount of C (% m/m), the flash point temperature t FP can be provided as a function of the contamination of the lubricating oil with diesel fuel, and the auto-ignition temperature decreases with the increasing value of C [15].…”

Section: Ignition Properties Of the Oil Diluted With Diesel Oilmentioning

confidence: 99%

“…In an attempt to answer the question regarding the existence of the influence of distillation fuel on the properties of contaminated lubricating oil and the related impact of the lubricating oil contamination with diesel on engine operation, research work has been undertaken. The outcomes of the research, among others, are presented elsewhere (failure prevention methods [8], oil volatility influence [15], oil rheological properties influence [16]).…”

Section: Introductionmentioning

confidence: 99%

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Assessment of the Impact of Lubricating Oil Contamination by Biodiesel on Trunk Piston Engine Reliability

2023

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The rheological, ignition, and tribological properties of lubricating oils diluted with biodiesel were analyzed. The flash point tFP, calculated cetane index CCI, density ρ, coefficient of the temperature density change ε, kinematic viscosity ν, dynamic viscosity η, viscosity index VI, and lubricity during a High-Frequency Reciprocating Rig (HFFR) test (x, y, WSD, and WS1.4) and lubricating conditions during an HFFR test (oil film resistance FILM and friction coefficient μ) were determined. The test was performed for the oil mixtures of the lubricating oil of the SAE 30 and SAE 40 viscosity grades, which were diluted with the biodiesel blend (D93B7—diesel oil with 7% v/v fatty acid methyl esters, FAME) at concentrations of diesel oil in the mixture equal to 0% (pure lubricating oil), 1%, 2%, 5%, 10%, 20%, 30%, 50%, and 75% m/m, respectively. The experiment confirmed the existence of clear relationships between the increase in the dilution of lubricating oil with tested biodiesel blend and tFP, ρ, ε, ν, η, and VI, and the deterioration of lubrication conditions. It is recommended to take remedial action even in the case of low diesel oil concentration (<5% m/m) in the lubricating oil due to tFP, ν, and η changes. Simultaneously, the tests showed no significant effect on the lubricity and the CCI. The critical contamination of oil with fuel in the range of 2–5% by weight, as indicated in the literature, still allowed for a certain “safety margin” regarding these parameters. However, when the concentration of diesel fuel in the lubricating oil exceeded 5–8% m/m, the deterioration of the lubrication was expressed by a decrease in FILM and an increase in μ was observed; hence, such a contamination should be considered excessive. When the concentration of diesel fuel exceeds 10% by weight, there is a serious risk of engine damage during operation.

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Section: Ignition Properties Of the Oil Diluted With Diesel Oilmentioning

confidence: 85%

Section: Pair Of Materialsmentioning

confidence: 98%

Section: Ignition Properties Of the Oil Diluted With Diesel Oilmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Assessment of the Impact of Lubricating Oil Contamination by Biodiesel on Trunk Piston Engine Reliability

2023

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“…Some authors have mentioned that the presence of fuel in oil increases the risk of "crankshaft explosion". Depending on the kind of impurities, factors like the age of the lubricant, the progressive removal of additives, and the presence of pollutants like water, combustion products, heavy fuel oil (HFO), diesel fuel, or biodiesel may all affect how viscous the lubricant is [8].…”

Section: Introductionmentioning

confidence: 99%

Technical Implications of the Use of Biofuels in Agricultural and Industrial Compression-Ignition Engines with a Special Focus on the Interactions with (Bio)lubricants

Piri,

Renzi,

Bietresato

2023

Energies

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The environmental sustainability of agricultural and industrial vehicles, as well as of the transportation sector, represents one of the most critical challenges to the sustainable development of a nation. In recent decades, compression-ignition engines have been widely used in on-road and off-road vehicles due to their better fuel economy, autonomy, compactness, and mechanical performance (spec. the high torque values). Due to the consistent environmental impact of fossil fuels, scientists are searching for alternative energy sources while preserving the beneficial features of diesel engines. The utilization of blends of diesel fuel, biodiesel, and bioethanol fuel (referred to as “ternary blends”) is among the most promising solutions for replacing fossil fuels in the near term, allowing, at the same time, us to continue using existing vehicles until new technologies are developed, consolidated and adapted to the agricultural and industrial sector. These ternary blends can lower exhaust emissions without creating major problems for existing fuel-feeding systems, typically designed for low-viscosity fossil fuels. One of the concerns in using liquid biofuels, specifically biodiesel, is the high chemical affinity with conventional and bio-based lubricants, so the main parameters of lubricants can vary significantly after a long operation of the engine. The comprehensive literature review presented in this article delves into the technical challenges, the main research pathways, and the potential solutions associated with the utilization of biofuels. Additionally, it investigates the emerging application of nanoparticles as additives in lubricants and biofuels, highlighting their valuable potential. This study also discusses the potential implementation of bio-ethanol in ternary blends, offering a promising avenue for reducing reliance on fossil fuels while maintaining engine efficiency.

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Preparing vegetable oils-based metalworking fluids by a hydrolysis-esterification two-step process

Kamyab,

Wang,

et al. 2024

Biomass and Bioenergy

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The Initial Boiling Point of Lubricating Oil as an Indicator for the Assessment of the Possible Contamination of Lubricating Oil with Diesel Oil

Cited by 13 publications

References 17 publications

Assessment of the Impact of Lubricating Oil Contamination by Biodiesel on Trunk Piston Engine Reliability

Assessment of the Impact of Lubricating Oil Contamination by Biodiesel on Trunk Piston Engine Reliability

Technical Implications of the Use of Biofuels in Agricultural and Industrial Compression-Ignition Engines with a Special Focus on the Interactions with (Bio)lubricants

Preparing vegetable oils-based metalworking fluids by a hydrolysis-esterification two-step process

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