Determination of Tractor Engine Oil Change Interval Based on Material Properties

Hönig, Vladimír; Procházka, Petr; Obergruber, Michal; Kučerová, Viera; Mejstřík, Pavel; Macků, Jan; Bouček, Jiří

doi:10.3390/ma13235403

Cited by 13 publications

(6 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Dilution of engine oil is otherwise dangerous due to the low “viscosity reserve” of modern engine oils. Portions with a boiling point above 200 °C would not evaporate even in a hot engine, they remain in the form of droplets which only partially burn, a part is ejected into the cylinder wall by a vortex in the combustion chamber and subsequently dissolves in the motor oil layer to reduce the oil’s viscosity [ 30 ].…”

Section: Resultsmentioning

confidence: 99%

Advanced Biofuels Based on Fischer–Tropsch Synthesis for Applications in Gasoline Engines

et al. 2021

Self Cite

View full text Add to dashboard Cite

The aim of the article is to determine the properties of fuel mixtures of Fischer–Tropsch naphtha fraction with traditional gasoline (petrol) to be able to integrate the production of advanced alternative fuel based on Fischer–Tropsch synthesis into existing fuel markets. The density, octane number, vapor pressure, cloud point, water content, sulphur content, refractive index, ASTM color, heat of combustion, and fuel composition were measured using the gas chromatography method PIONA. It was found that fuel properties of Fischer–Tropsch naphtha fraction is not much comparable to conventional gasoline (petrol) due to the high n-alkane content. This research work recommends the creation of a low-percentage mixture of 3 vol.% of FT naphtha fraction with traditional gasoline to minimize negative effects—similar to the current legislative limit of 5 vol.% of bioethanol in E5 gasoline. FT naphtha fraction as a biocomponent does not contain sulphur or polyaromatic hydrocarbons nor benzene. Waste materials can be processed by FT synthesis. Fischer–Tropsch synthesis can be considered a universal fuel—the naphtha fraction cut can be declared as a biocomponent for gasoline fuel without any further necessary catalytic upgrading.

show abstract

Section: Resultsmentioning

confidence: 99%

Advanced Biofuels Based on Fischer–Tropsch Synthesis for Applications in Gasoline Engines

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…The average iron content in intercity buses was 94 ppm and was 52% higher than in buses operating in the city (the average in the group was 45 ppm). Copper in the engine is used, among others, in rings and bushings, while iron, as the main structural element in the engine, is used in cylinder liners, the crankshaft, rolling bearings and valves [30]. When comparing two intervals in both intercity buses, a high content of iron and copper was observed in their first intervals from a new status, which in this case indicated the process of the running-in of these engine components.…”

Section: Elemental Analysismentioning

confidence: 88%

Engine Oil Degradation in the Real-World Bus Fleet Test Based on Two Consecutive Operational Intervals

Gołębiowski,

Wolak,

Šarkan

2024

Lubricants

View full text Add to dashboard Cite

The literature on the subject and the results of numerous research experiments indicate that single replacement cycles do not reflect the actual state of oil quality in the context of its degradation. Monitoring the operational quality of the oil in several successive stages allows for a more accurate diagnosis of the optimal oil change time. Therefore, it was decided to investigate the relationship between two consecutive periods of changing the operating oil in an engine. Comparative tests of seven buses included in the fleet were carried out. An important division criterion was taken into account—the operation of city and intercity buses. The HDXRF instrumental chemical analysis method was used to determine changes in the content of abrasive metals, and additives in engine oils. Additionally, the oxidation, nitration, sulfonation, and soot content were assessed using infrared spectroscopy (FTIR) based on the ASTM E2414-10 standard and kinematic viscosity at 40 °C and 100 °C using a Stabinger viscometer according to ASTM D7042. The course of these changes was analyzed in terms of their dynamics. The comparative study aimed to identify trends and sources of differences between the tested oils, as well as to demonstrate the number of exceedances of limit values for the selected parameters.

show abstract

“…This convergence has led to the spread of the sharing economy in various sectors (Schor et al, 2016;Griggio and Oxenswärdh, 2021). Various sharing economy initiatives have emerged worldwide, encompassing sectors such as accommodation, utilities, automobiles, and others (Martin, 2016;Hönig et al, 2020). The concept of sharing is familiar, as human exchange is a long-standing reflection of social relations and the consolidation of cultural traditions (Hati et al, 2021).…”

Section: Literature Reviewmentioning

confidence: 99%

Sustainability of shared economy in the agri-food, tourism, and hospitality industries

Alloh,

Abrham,

Sanova

et al. 2024

Front. Sustain. Food Syst.

View full text Add to dashboard Cite

IntroductionThis study aims to provide a systematic literature review on the sustainability of shared economy in the food, agricultural, and hospitality sectors. We assess relationships between the sharing economy and sustainability in the examined industries. Furthermore, we identify gaps in knowledge and recommend possible research directions for future studies.MethodsThis study provides a systematic literature review on sustainable sharing economy in the hospitality and agri-food sectors. We applied the Procedure for Systematic Reviews and Meta-Analyses (PRISMA). Based on the mentioned methodological procedure, we conducted a literature search through scientific databases Scopus and Web of Science. The research period is 2014–2023.ResultsUsing the Procedure for Systematic Reviews and Meta-Analyses (PRISMA), we extracted 2185 scientific articles from the Scopus and Web of Science databases published between 2014 and 2023. A total of 117 studies met the eligibility criteria. Based on the review, we identified the following frequently researched areas in the literature: sustainable housing sharing, urban and community sustainability, energy efficiency and carbon footprint, public sector regulation and sustainability, food sharing, exchanges and networks, food waste-reducing platforms, and food-based applications.ConclusionThe studies reviewed confirmed growing research interest in the sustainability of the shared economy in agri-food and hospitality. The number of studies in the Web of Science and Scopus databases has increased over the last decade. Our systematic review indicates that shared accommodation and food sharing are dominant topics in the literature. The sustainability of shared accommodation has been examined in previous studies, mainly concerning the impacts on cities and communities. In food sharing, we identified relevant linkages between food waste and sharing platforms.

show abstract

Determination of Tractor Engine Oil Change Interval Based on Material Properties

Cited by 13 publications

References 25 publications

Advanced Biofuels Based on Fischer–Tropsch Synthesis for Applications in Gasoline Engines

Advanced Biofuels Based on Fischer–Tropsch Synthesis for Applications in Gasoline Engines

Engine Oil Degradation in the Real-World Bus Fleet Test Based on Two Consecutive Operational Intervals

Sustainability of shared economy in the agri-food, tourism, and hospitality industries

Contact Info

Product

Resources

About