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Journal articles on the topic 'Used lubricating oil'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Chybowski, Leszek, Marcin Szczepanek, Robert Sztangierski, and Piotr Brożek. "A Quantitative and Qualitative Analysis of the Lubricity of Used Lubricating Oil Diluted with Diesel Oil." Applied Sciences 14, no. 11 (2024): 4567. http://dx.doi.org/10.3390/app14114567.

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Experience shows that dilution of lubricating oil with diesel oil is unfavorable to the engine, causing issues including deterioration of engine performance, shortening of oil life, and reduction in engine reliability and safety. This paper presents the verification of the hypothesis that the changes in lubricity, friction coefficient, and decreasing oil film thickness (using a relative approach, given as a percentage) are similar for lubricating oil and diesel mixtures prepared from fresh lubricating oil and used lubricating oil. To validate this hypothesis, an experiment is conducted using a

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2

Jia, Fuchun, Yulong Lei, Yao Fu, Binyu Wang, and Jianlong Hu. "Demand Analysis of Lubricating Oil in Spur Gear Pairs." Applied Sciences 10, no. 16 (2020): 5417. http://dx.doi.org/10.3390/app10165417.

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Theoretical calculation and numerical simulation are used to investigate the lubricating oil demand of spur gears. In accordance with the function of lubricating oil during the meshing process, oil demand is regarded as the superposition of oil for lubrication and cooling. Oil for lubrication is calculated in accordance with meshing and elastohydrodynamic lubrication (EHL) theories. Oil for cooling is obtained from friction heat. The influence of different meshing positions on lubricating oil demand is analysed, and the effects of modulus, tooth number, transmission ratio, input speed and inpu

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3

Chybowski, Leszek, Marcin Szczepanek, Robert Sztangierski, and Piotr Brożek. "Modeling of Selected Parameters of Used Lubricating Oil Diluted with Diesel Oil Using the Characteristics of Fresh Lubricating Oil." Energies 17, no. 9 (2024): 2047. http://dx.doi.org/10.3390/en17092047.

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This article presents the verification of the hypothesis on using certain approximation curves in the evaluation of used lubricating oil. These curves are plotted for fresh lubricating oil to approximate the parameters of lubricating oil diluted with diesel oil. To confirm the hypothesis, an experiment is conducted to determine the flash point, initial boiling point, density at 15 °C, kinematic viscosity at 40 °C and 100 °C, and viscosity index. The analysis covers fresh oil and used SAE 30 grade Marinol CB-30 RG1230 oil taken from the circulating lubrication system of a supercharged, trunk-pi

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4

Murghani Mutwakel, Salah, Zamzam Ali Basher, Wafaa Khaleefah, and Mowda Mohmmed Almahie. "Treatment and Recycling of Used Lubricating Oil." International Journal of Scientific Engineering and Research 5, no. 2 (2017): 43–47. https://doi.org/10.70729/5021701.

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5

Fan, Bingli, Zhengjie Li, Annan Sun, Yiwei Guo, Xiaowen Qi, and Changxin Liu. "Experimental Study on Tribological Properties of Polymer-based Composite Nano-additives Suitable for Armored Vehicle Engine Lubricating Oil." MATEC Web of Conferences 358 (2022): 01009. http://dx.doi.org/10.1051/matecconf/202235801009.

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Lubricating oil is known as "the blood to maintain the normal operation of machinery", and additives are an indispensable and important part of lubricating oil. In this paper, the Polymer-based Composite Nano-additive (PCNA) suitable for armored vehicle engine lubricating oil was developed, the physical and chemical properties of lubricating oil containing additives were carried out. The results showed that adding an appropriate amount (3 vol.%) of additives could improve the low-temperature fluidity of lubricating oil and improve the kinematic viscosity of lubricating oil without affecting th

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6

Sasaki, A. "Contaminants in Used Oils and Their Problems." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 220, no. 5 (2006): 471–78. http://dx.doi.org/10.1243/135065005x33955.

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Contaminants in hydraulic and lubricating oils are harmful to lubrication. Therefore, contamination control of hydraulic and lubricating oils has been implemented in many factories and oil cleanliness standards of hydraulic and lubricating oils have been established as criteria for oil contamination control. There are two types of oil cleanliness standards: one is based on particle count and the other on gravimetric analysis. NAS 1638, ISO 4406, SAE AS4059, and JISB9930 belong to the former and ASTM D4898 and JISB9931 to the latter. The par tide count defines oil cleanliness by counting the nu

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7

Fan, Bing Li, An Nan Sun, Zheng Jie Li, Yi Wei Guo, Xiao Wen Qi, and Chang Xin Liu. "Experimental Study on Dissolution Stability and Dispersion and their Influence on Tribological Properties for Reducing Friction and Prolonging Life of Armored Vehicle Engine Lubricating Oil Additives." Advanced Engineering Forum 49 (May 31, 2023): 15–27. http://dx.doi.org/10.4028/p-ba6mc5.

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A lubricating oil additive for armored vehicle engine was synthesized by ultrasonic dispersion and physical blending with polyisobutylene and poly alpha olefin as polymer matrix, nanoBN and nanoALN as antifriction materials and polyisobutylene succinimide as surfactant. Polymer-based lubricating oil additive, hydroxyl magnesium silicate powder additive, commercial anti-wear repairing agent Goldway and commercial anti-wear protective agent Chief were dispersed into 10W-40 armored vehicle engine special lubricating oil according to a certain mass fraction. The dissolution stability of different

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8

Wu, Haiyong, Na Lin, Bihua Shen, et al. "Influence of operating speed, load and mileage on the lubricating performance of self-lubricating rolling linear guide." PLOS One 20, no. 7 (2025): e0328534. https://doi.org/10.1371/journal.pone.0328534.

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Self-lubricating rolling linear guides are widely used in precision instruments, industrial automation production lines, and other fields. The lubrication performance of rolling linear guide has a significant impact on their smooth operation and service life. This paper aims to investigate influence of different operation condition on the lubricating performance of rolling linear guide. Polytetrafluoroethylene (PTFE) is employed as the substrate to fabricate porous media which is installed at the end cover of the rolling linear guide slider to study the effects of operating speed, load, and mi

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9

Siregar, Sri Hilma, Dwi Nurhaliza, and Aulia Rizki Ramadhanti. "Bentonite-chitosan bionanocomposite for adsorption of used lubricant oil." Acta Chimica Asiana 8, no. 1 (2025): 548–54. https://doi.org/10.29303/aca.v8i1.220.

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The growth of the transportation industry has led to the expansion of the automotive sector. Automotive business activities have the potential to cause several environmental problems, one of which is environmental pollution caused by used lubricating oil waste. One alternative effort to process lubricating oil waste is the adsorption method. This research aims to determine the ability or effectiveness of bentonite-chitosan composites in adsorbing waste lubricating oil. This research began by synthesizing Bentonite-Chitosan composites. The successfully synthesized material was then characterize

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10

Handoyo, Tris, Dhimas Widhi Handani, Agus Sudaryanto, and Dimas Fajar Prasetyo. "Prioritization of Research Vessel Lubricating Oil System Equipment for Maintenance Purpose Using Failure Mode Effect and Criticality Analysis (FMECA) Method. Study Case: RV. Baruna Jaya." Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan 20, no. 2 (2023): 187–200. http://dx.doi.org/10.14710/kapal.v20i2.52700.

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Alongside the program, which requires research vessel operation, RV Baruna Jaya is needed to fill that requirement fully. RV Baruna Jaya reported many failures during the previous mission. Some failures need emergency maintenance. One of them is the problem with the lubricating oil system. The lubrication system of an engine supplies of lubricating oil to the various moving parts of the engine. Its main function is to form an oil film between moving parts, which reduces friction and wear. The lubricating oil is also used as a cleaner and, in some engines, as a coolant. During the survey Ina-TE

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11

Kuang, Xin, Xiping Yang, Hua Bian, Rong Kuang, Nanrong Hu, and Shengyong Li. "Performance evaluation of nano-graphene lubricating oil with high dispersion and low viscosity used in diesel engines." PLOS ONE 19, no. 8 (2024): e0307394. http://dx.doi.org/10.1371/journal.pone.0307394.

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The basic tribological experiments have reported that nano-graphene lubricating oil has excellent anti-friction and anti-wear properties, which has been widely concerned. However, the real anti-friction effect of nano-graphene lubricating oil and its impact on engine power performance, economic performance and emission performance remain to be proved. This has seriously hindered the popularization and application of nano-graphene lubricating oil in the engine field. In this paper, nano-graphene powder was chemically grafted to prepare nano-graphene lubricating oil with high dispersion stabilit

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12

Onuoha, N. P., and O. U. Nnadi. "Recycling of Used Engine Oil into Reusable Oil: A Waste to Wealth Inventiveness." American Journal of Applied Sciences and Engineering 3, no. 6 (2023): 78–83. https://doi.org/10.5281/zenodo.7662448.

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This study examined recycling of used engine oil into reusable oil: a waste to wealth inventiveness. Using a unique combination of solvent extraction and activated alumina adsorbent, the refinement of lubricating oils from used lubricating oil was investigated. Experimental evaluation of these solvent extraction blends' activity using oil-to-solvent ratios ranging from 1:1 to 1:3 was done for combination blends of toluene, butanol, and methanol (A), toluene, butanol, and ethanol (B), and toluene, butanol, and isopropanol (C) (C). The outcomes show that solvent mixture (A) removed the most

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13

Ji, Tian, Changwen Tao, and Tao Sun. "Lubrication optimization of high-speed train drive gearbox." Vibroengineering Procedia 56 (October 18, 2024): 196–201. http://dx.doi.org/10.21595/vp.2024.24347.

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The gears in the high-speed heavy-duty gearbox of the high-speed train are typical high-speed heavy-duty gears. Combined with the transmission principle and structural characteristics of the high-speed train drive gearbox, to ensure adequate lubrication of meshing gears and bearings, an optimization of the lubricating oil flow inside the gearbox was conducted. The oil and gas two-phase flow model inside the gearbox adopts the VOF model, and the turbulence model adopts the standard κ-ε model. Fluent is used for simulation calculation. The results show that the exhaust port position of the gearb

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14

Abioye, O. P., P. Agamuthu, and A. R. Abdul Aziz. "Biodegradation of Used Motor Oil in Soil Using Organic Waste Amendments." Biotechnology Research International 2012 (June 20, 2012): 1–8. http://dx.doi.org/10.1155/2012/587041.

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Soil and surface water contamination by used lubricating oil is a common occurrence in most developing countries. This has been shown to have harmful effects on the environment and human beings at large. Bioremediation can be an alternative green technology for remediation of such hydrocarbon-contaminated soil. Bioremediation of soil contaminated with 5% and 15% (w/w) used lubricating oil and amended with 10% brewery spent grain (BSG), banana skin (BS), and spent mushroom compost (SMC) was studied for a period of 84 days, under laboratory condition. At the end of 84 days, the highest percentag

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15

Al-Nidawi, Mustafa R., Dalya J. Ahmed, Mohammed Chali, and Ahmed Bahjat. "Purification of Used Lubricating Oils Using Vacuum Distillation." Journal of Petroleum Research and Studies 14, no. 1 (2024): 111–30. http://dx.doi.org/10.52716/jprs.v14i1.766.

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Engine oil (EO) is produced by mixing base oil derivatives from crude oil with chemical additives to the lubricity of moving parts and reduce the friction inside the engine. Used lubricating oil (ULO) is one of the hazardous materials that consists of pollution harmful to the environment, it needs to be managed properly. In this work, vacuum distillation technique is used to recycle used lubricating oil. Used lubricating oil samples from two different brands of diesel engine oil (20w-50) and gasoline engine oil (10W-30) are used in this study. Various properties of ULO and recycled oil were ch

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16

Villanueva, Aaron, Susanna Ho, and Ludo Zanzotto. "Asphalt modification with used lubricating oil." Canadian Journal of Civil Engineering 35, no. 2 (2008): 148–57. http://dx.doi.org/10.1139/l07-092.

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The viability of used lubricating oil as an asphalt modifier was studied, with the enhancement of the low-temperature grade as the specific goal. Used oil modification was found to improve the Superpave low-temperature performance grade (PG), but at the expense of the high-temperature PG grade. When evaluated according to the Superpave MP1 specification, the low-temperature grade of the modified asphalt was not significantly improved due to failure of the bending beam rheometer (BBR) test’s m value. When evaluated according to the Superpave MP1a specification, the modified asphalt overall PG g

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17

Yash P., Merai. "Re-refining of used lubricating oil." International Journal of Scientific and Engineering Research 6, no. 3 (2015): 329–32. http://dx.doi.org/10.14299/ijser.2015.03.004.

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18

Nindyapuspa, Ayu, Taty Alfiah, and Virgo Indrawan Toda. "Stabilization/Solidification of used lubricating oil containing Fe and Pb with Portland cement and bentonite." MATEC Web of Conferences 276 (2019): 06011. http://dx.doi.org/10.1051/matecconf/201927606011.

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Used lubricating oil belong hazardous waste based on the Government Regulation Number 101 in 2014 about Hazardous Waste Management. Used lubricating oil contain hydrocarbon and heavy metals such as Fe and Pb. One of method to immobilize used lubricating oil is stabilization/solidification (S/S). S/S method always uses Portland cement to immobilize the heavy metals, but Portland cement can not immobilize the hydrocarbon. In this research, S/S method used Portland cement and bentonite are binding the heavy metals and hydrocarbon in the used lubricating oil. The composition used was cement benton

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19

Haral, Ashwini. "An Experimental Study of Tribological Behavior of Journal Bearing Material under Powder and Granular Lubrication." International Journal for Research in Applied Science and Engineering Technology 9, no. 8 (2021): 2553–57. http://dx.doi.org/10.22214/ijraset.2021.37811.

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Abstract: Proper lubrication of mechanical components is very important for the reliable efficiency and useful life. The working temperature of the components can affect the lubricating oil and can degrade the lubricating characteristics of oil. This paper presents the experimental investigation on tribological behaviour of journal bearing material. Two types of additives are used in lubricating oili.e., powder and granular types of additives. The investigation is carried out on pin-on-disc apparatus to determine the wear and coefficient of friction. The statistical analysis is performed using

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20

Wang, Xigui, Jian Zhang, Yongmei Wang, and Chen Li. "Self-Anti-Disturbance Control of a Hydraulic System Subjected to Variable Static Loads." Applied Sciences 12, no. 14 (2022): 7264. http://dx.doi.org/10.3390/app12147264.

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A hydraulic system’s lubricating oil is subject to serialized variable static loads with performance. An improved self-turbulent flow algorithm, based on the real-time acquisition and monitoring of lubricating oil static pressure in a hydraulic system to simulate variable static loads, is proposed. A mathematical model of the electrohydraulic servo control system for lubricating oil static pressure acquisition is presented, and the self-turbulent flow controller is designed for numerical analysis. The self-anti-disturbance control strategy for the lubricating oil static pressure of an electroh

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21

Buczek, Bronislaw, and Anna Zajezierska. "Biodegradable lubricating greases containing used frying oil as additives." Industrial Lubrication and Tribology 67, no. 4 (2015): 315–19. http://dx.doi.org/10.1108/ilt-07-2013-0082.

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Purpose – The aim of this paper was to investigate the possibility of reusing frying oil, obtained during thermal treatment of food in fast-food restaurants for production of plastic greases. Design/methodology/approach – In accordance with the proposed research concept, the used frying oil was to be the base oil of biodegradable plastic greases thickened with calcium 12-hydroxystearate and lithium 12-hydroxystearate. These studies included the determination of the effect of variable amounts of used oil component in the base oil on the properties of the resultant plastic greases. Findings – It

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22

Kalam, M. A., and H. H. Majsuki. "Use of an additive in biofuel to evaluate emissions, engine component wear and lubrication characteristics." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 216, no. 9 (2002): 751–57. http://dx.doi.org/10.1243/09544070260340844.

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This paper presents the results of experiments carried out to evaluate the effect of adding an anticorrosion additive to blended biofuel and lubricating oil on emissions, engine component wear and lubrication characteristics. The blended biofuels consist of 7.5 and 15 per cent palm olein (PO) with ordinary diesel oil (OD). Pure OD was used for comparison purposes. Exhaust emission gases such as NOx, CO and hydrocarbons (HCs) were measured by an exhaust emission analyser for engine operation on 50 per cent throttle at speeds of 800-3600 r/min. To measure engine component wear and lubricating oi

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23

Al-Ayed, Omar. "Catalytic Cracking of Vacuum Gas Oil and Used Lubricating Oil on Oil Shale Ash." Global Journal of Energy Technology Research Updates 2, no. 1 (2015): 25–32. http://dx.doi.org/10.15377/2409-5818.2015.02.01.4.

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In this research, Vacuum Gas Oil and/or used lubricating oil is subjected to thermal cracking (pyrolysis) after impregnation on oil shale ash to obtain lighter molecular weight components. The spent oil shale of the thermal cracking step is subjected to further heat treatment in open air at 950oC to react any organic compounds and mineral carbon to metal oxide. Used and/or fresh lubricating oils are impregnated on oil shale ash particles. Ash is soaked for 24 hours to allow absorption of the VGO or lubricating oils into the pores of the ash material. Oil shale ash which is known to contain sev

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24

Chybowski, Leszek. "The Initial Boiling Point of Lubricating Oil as an Indicator for the Assessment of the Possible Contamination of Lubricating Oil with Diesel Oil." Energies 15, no. 21 (2022): 7927. http://dx.doi.org/10.3390/en15217927.

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This article provides a brief introduction to the indicators of the volatility and flammability of lubricating oils and fuels. It is proposed that the initial boiling point be used as an indicator of the contamination of lubricating oil with distillate fuel (i.e., diesel biofuel oil) in the context of the rapid detection of explosion risks in the crankcase. Detailed tests were carried out on lubricating oil samples (SAE 30 and SAE 40 grades, which are most commonly used in the lubrication systems of marine trunk engines) diluted with diesel oil at selected mass concentrations (0, 1, 2, 5, 10,

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25

Syaiful, Prihonoa, Sumariyaha Sumariyah, Yuliantob Eko, and Nura Muhammad. "Analysis of Electrohydrodynamic Flow Phenomenon of Positive Corona Discharge on New and Used Lubricant Surfaces." International Journal of Innovative Science and Research Technology 7, no. 9 (2022): 1884–89. https://doi.org/10.5281/zenodo.7121803.

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- Analysis of Electrohydrodynamic (EHD) Flow Phenomenon through deformation on the surface of new and used lubricating oil has been carried out. Positive corona plasma discharge was generated using a reactor with a point to plane electrode configuration. Voltage (V) is increased from 0 kV until arc discharge. The applied voltage interval is 0.2 kV. The distance between the electrodes (d) was varied from 4 mm to 14 mm with an interval of 2 mm. The results showed that the largest current of 43 µA was obtained at the characterization carried out at a distance between the electrodes of 14 mm

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26

Yu, Yongjian, Zifan Dong, Yujun Xue, Haichao Cai, and Jun Ye. "A Study on the Wear Characteristics of a Point Contact Pair of Angular Contact Ball Bearings Under Mixed Lubrication." Machines 13, no. 4 (2025): 312. https://doi.org/10.3390/machines13040312.

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Under mixed lubrication, the macro size is affected by the wear of the surface roughness peaks, which results in degradation of the bearing accuracy. To study the wear characteristics of rolling bearings under mixed lubrication, based on the elastohydrodynamic lubrication theory and Archard wear model, and considering the coupling of the oil film and roughness, a wear prediction model of angular contact ball bearings under mixed lubrication was established, and the influence of the working parameters and hardness on bearing wear was analyzed. The results show that the wear depth of the outer g

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27

Wu, Bo, Xiao Dong Yu, Xue Mei Chang, and Chao Yin. "Influence of Working Parameters on Dynamic Pressure Effect of Heavy Constant Flow Hydrostatic Center Rest." Applied Mechanics and Materials 274 (January 2013): 82–86. http://dx.doi.org/10.4028/www.scientific.net/amm.274.82.

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In order to increase the working performance of a heavy constant flow hydrostatic center rest, a theoretical study concerning the lubricating oil film dynamic pressure effect of the heavy constant flow hydrostatic center rest is described. The Computational Fluid Dynamics and the Finite Volume Method have been used to compute numerically the static pressure field and the total pressure field of the lubricating oil film. The influences of spindle rotating rate, lubricating oil dynamic viscosity and inlet flow rate on the lubricating oil film dynamic pressure effect of the heavy constant flow hy

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28

Syaiful, Prihonoa, Sumariyaha Sumariyah, Nura Muhammad, and Yuliantob Eko. "Analysis of Electrohydrodynamic Flow Phenomenon of Positive Corona Discharge on New and Used Lubricant Surfaces." International Journal of Innovative Science and Research Technology 7, no. 8 (2022): 1884–89. https://doi.org/10.5281/zenodo.7121848.

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Analysis of Electrohydrodynamic (EHD) Flow Phenomenon through deformation on the surface of new and used lubricating oil has been carried out. Positive corona plasma discharge was generated using a reactor with a point to plane electrode configuration. Voltage (V) is increased from 0 kV until arc discharge. The applied voltage interval is 0.2 kV. The distance between the electrodes (d) was varied from 4 mm to 14 mm with an interval of 2 mm. The results showed that the largest current of 43 µA was obtained at the characterization carried out at a distance between the electrodes of 14 mm w

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29

Stuart, A. D., S. M. Trotman, K. J. Doolan, and P. M. Fredericks. "Spectroscopic Measurement of Used Lubricating Oil Quality." Applied Spectroscopy 43, no. 1 (1989): 55–60. http://dx.doi.org/10.1366/0003702894201851.

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Used lubricating oils have been examined by a number of spectroscopic techniques to assess whether it might be possible to improve turn-around time for laboratory analyses or to develop a simple oil quality sensor which could be used in a service workshop. Investigation shows that the development of an oil quality sensor based on discrete wavenumber measurements in the mid-infrared region would not be warranted, but heptane-insolubles can be estimated from a single measurement in the near-infrared region, and this could form the basis of a simple sensor. Considerable information about the qual

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Hamad, Ahmad, Essam Al-Zubaidy, and Muhammad E. Fayed. "Used lubricating oil recycling using hydrocarbon solvents." Journal of Environmental Management 74, no. 2 (2005): 153–59. http://dx.doi.org/10.1016/j.jenvman.2004.09.002.

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Palikhel, Laxman, Rupesh Lal Karn, Suman Aryal, and Barsha Neupane. "Effect of Natural and Synthesized Oil Blends with Diesel by Volume on Lubrication and Performance of Internal Combustion Engine." Journal of Innovations in Engineering Education 3, no. 1 (2020): 107–14. http://dx.doi.org/10.3126/jiee.v3i1.34331.

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Use of ultra-low sulfur diesel leads to improve emission but it has negative impact on lubrication. Poor lubrication leads to damage the cylinder parts and piston rings. For proper lubrication in ultra-low sulfur diesel, anti-wear agent, corrosion & Rust inhibitor, metal deactivator, Anti-oxidant, Pour point depressant, seal swell agent, viscosity improver and other are used. Viscosity improver such as polymers and copolymers of methacrylates, butadiene olefins and alkylated styrenes reduce the rate of viscosity change with temperature, metal deactivator are organic complexes containing ni

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Orawiec, Alex, Levi Suryan, and John Parmigiani. "An Evaluation of the Performance of Chainsaw Lubricants." Croatian journal of forest engineering 41, no. 2 (2020): 325–32. http://dx.doi.org/10.5552/crojfe.2020.689.

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Chainsaws require lubrication of the guide bar and saw chain to function properly. Many oils are commercially available to provide this lubrication. Economical and more recently environmental concerns are increasingly compelling consideration of the best type of oil to use. Several published scientific studies provide some guidance, but additional information is needed for operators to make informed and effective choices in lubricating oil selection. The work presented in this paper contributes to providing this guidance by comparing the performance of economy and premium versions of three com

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33

Lestianingrum, Erna, and Lisendra Marbelia. "Used Lubricating Oil Treatment and Reuse for Sustainable Production Processes in Cement Industry." Eksergi 22, no. 1 (2025): 6–11. https://doi.org/10.31315/d5mq4936.

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Used lubricating oil is one type of hazardous waste produced in the chemical industry, including the cement industry. PT ITP Unit Palimanan has obtained a permit to process hazardous waste in the form of used lubricant oil since February 21, 2023. Therefore, starting from March 2023, PT. ITP Unit Palimanan has been utilizing used lubricant oil for open chain lubrication. The used lubricant oil, which is dark in color and contains a high number of particles, is reprocessed through a filtration process before being used. In this process, the contaminating particles are reduced, and the used lubr

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Bao, Heyun, Xiaonan Hou, and Fengxia Lu. "Analysis of Oil-Air Two-Phase Flow Characteristics inside a Ball Bearing with Under-Race Lubrication." Processes 8, no. 10 (2020): 1223. http://dx.doi.org/10.3390/pr8101223.

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Under-race lubrication can increase the amount of lubricating oil entering a bearing and greatly improve lubrication and cooling effects. The oil-air two-phase flow characteristics inside a ball bearing with under-race lubrication play a key role in lubrication and cooling performance. The motions of ball bearing subassemblies are complicated. Ball spin affects the oil volume fraction. In this paper, the coupled level set volume of fluid (CLSVOF) method is used to track the oil-air two-phase flow inside the ball bearing with under-race lubrication. The influence of various factors on the oil v

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Dani, Agus, Nurlia Pramita Sari, and Haris Puspito Buwono. "LOW DENSITY AND VISCOSITY OF USED LUBRICANT OIL CONVERSION OVER ALPO4 CATALYST TOWARDS FUEL OIL." Logic : Jurnal Rancang Bangun dan Teknologi 22, no. 2 (2022): 208–13. http://dx.doi.org/10.31940/logic.v22i2.2016-221.

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The conversion of used lubricating oil towards fuel oil by catalytic conversion is a suitable way to recycle waste oil. Catalyst has a key role in used lubricating oil conversion. Therefore this research was to study the catalytic cracking of used lubricating oil, and thus its properties as an alternative for fuel oil over aluminum fosfate. The experiments were carried out in a batch microreactor at a temperature of 350-400 oC, atmospheric initial air pressure, 5% w/w catalyst concentration, and reaction time of 5 min over aluminum fosfate catalyst. Aluminum fosfate catalyst produced low-densi

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Kozdrach, Rafał. "The influence of base oil type on the rheological properties of ecological lubricating greases." Nafta-Gaz 77, no. 2 (2021): 127–35. http://dx.doi.org/10.18668/ng.2021.02.07.

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The article presents the results of research on the influence the type of base oil in lubricating compositions has on the rheological parameters of selected lubricants. Vegetable, mineral, and synthetic dispersion phases were used to produce lubricating greases. The modified amorphous silica was used as the dispersed phase. However, as a modifying additive was used a substance containing the antioxidants, corrosion inhibitors, and EP/AW additives. The experiments on rheological properties were carried out using a Physica MCR 101 rotational rheometer (manufactured by Anton Paar), equipped with

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Hu, Ningning, Xiuheng Zhang, Xianghui Wang, Na Wu, and Songquan Wang. "Study on Tribological Properties and Mechanisms of Different Morphology WS2 as Lubricant Additives." Materials 13, no. 7 (2020): 1522. http://dx.doi.org/10.3390/ma13071522.

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In the present work, the relationship curve of the coefficient of friction (COF) with varying loads of different morphology WS2 lubricating additives in the friction process at various sliding speeds was studied. On this basis, wear marks and elements on the wear surfaces after friction were analyzed, and then the anti-wear and mechanism effects of WS2 of different forms in the lubrication process were discussed. Meanwhile, the Stribeck curve was used to study the lubrication state of the lubricating oil in the friction process. It was revealed that the COF of lubricating oil containing lamell

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Banik, SK, T. Rabeya, M. Hasan, D. Saha, and MS Islam. "Bio-lubricating base oil from castor oil (Ricinous communus)." Bangladesh Journal of Scientific and Industrial Research 57, no. 1 (2022): 7–14. http://dx.doi.org/10.3329/bjsir.v57i1.58895.

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Production and characterization of bio lubricating base oil from non-edible castor seed oil has been studied. Castor oil was extracted from castor seed by solvent extraction method. KOH catalyzed transesterification process was used to produce bio-lubricating oil. Ethanol was used as alcohol in the transesterification process. Optimum condition for bio-lubricating base oil production was 40% ethanol, 0.45% KOH at 75oC for reaction time of 90 min. and the yield was 98%. Important properties of produced bio-lubricating oil like acid value (0.58 mg KOH/g), flash point (235oC), density (0.890 g/cc

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Erawati, Emi, Haryanto Haryanto, Neysa Wirantika Astuti, and Annida Mitha Prasetyanti. "Characterization of Activated Coconut Shell Charcoal as a Zinc Absorbent for Used Oil Lubricant." Jurnal Rekayasa Kimia & Lingkungan 15, no. 2 (2020): 111–22. http://dx.doi.org/10.23955/rkl.v15i2.13589.

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Lubricating oil is classified as B3 waste (hazardous and toxic waste). In the lubricating oil consists of zinc waste which is very dangeraous for healt and environment. So that to handle lubricating oil is used the adsorption method using coconut shell as adsorbent. This study aims to determine the efficiency of zinc adsorption on lubricating oil with stirring speed, percent solvent, mesh size, and mass of adsorbent variation; to learn the equibilium equation of adsorpsion of Zn metal ion on the activated carbon of coconut shell charcoal using Freundlich and Langmuir equilibirium; and to calcu

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Erawati, Emi, Haryanto Haryanto, Neysa Wirantika Astuti, and Annida Mitha Prasetyanti. "Characterization of Activated Coconut Shell Charcoal as a Zinc Absorbent for Used Oil Lubricant." Jurnal Rekayasa Kimia & Lingkungan 15, no. 2 (2020): 111–22. http://dx.doi.org/10.23955/rkl.v15i2.13589.

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Lubricating oil is classified as B3 waste (hazardous and toxic waste). In the lubricating oil consists of zinc waste which is very dangeraous for healt and environment. So that to handle lubricating oil is used the adsorption method using coconut shell as adsorbent. This study aims to determine the efficiency of zinc adsorption on lubricating oil with stirring speed, percent solvent, mesh size, and mass of adsorbent variation; to learn the equibilium equation of adsorpsion of Zn metal ion on the activated carbon of coconut shell charcoal using Freundlich and Langmuir equilibirium; and to calcu

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Furqon, Zami, Didi D. Anggoro, and Heri Sutanto. "Physical characterization of used lubricating oil as fuel production feedstock." E3S Web of Conferences 605 (2025): 03050. https://doi.org/10.1051/e3sconf/202560503050.

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These articles aim to identify the physical characteristics of the hydrocarbons in used lubricating oil, which is required as feedstock for process designs, and to address certain issues with the equipment used in the catalytic cracking process in the future. The data can be used to determine specific parameters to refine used lubricating oil into fuel. Used lubricating oil falls into the medium-heavy oil category based on the results of the characteristic tests. The physical test findings determined the sample’s fluidity and volatility qualities such as the ASTM D 92 flash point, ASTM D 97 po

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42

Masjuki, H. H., and M. A. Maleque. "Wear, Performance and Emissions of a Two-Stroke Engine Running on Palm Oil Methyl Ester Blended Lubricant." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 210, no. 4 (1996): 213–19. http://dx.doi.org/10.1243/pime_proc_1996_210_503_02.

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Results of study on wear of piston rings, engine performance and exhaust gas emissions of palm oil methyl ester (POME) as a lubricating oil additive in a two-stroke gasoline engine test are presented. Piston ring wear behaviour was monitored as a function of running time. The power output and brake specific fuel consumption of the engine were measured at different speeds. Varnish/lacquer and carbon deposit on the spark plug electrode, cylinder and piston heads as well as exhaust gas (CO2, CO and O2) emission were measured. For comparison purposes, two types of commercial lubricating oils, viz.

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Chybowski, Leszek. "Study of the Relationship between the Level of Lubricating Oil Contamination with Distillation Fuel and the Risk of Explosion in the Crankcase of a Marine Trunk Type Engine." Energies 16, no. 2 (2023): 683. http://dx.doi.org/10.3390/en16020683.

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Fuel contamination of engine lubricating oil has been previously determined to arise from two independent phenomena: the effect on oil flash point, and the effect of changing lubrication conditions on tribological pairs. This paper combines these effects and holistically analyzes the consequences of fuel in the lubricating oil of a trunk piston engine on the risk of crankcase explosion. The author hypothesized that diesel fuel as an oil contaminant increases the risk of an explosion in the crankcase of an engine due to the independent interaction of two factors: (1) changes in the oil’s combus

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Kamiński, Włodzimierz. "Marine Slow-Speed Engines’ Cylinder Oil Lubrication Feed Rate Optimization in Real Operational Conditions." Energies 15, no. 22 (2022): 8378. http://dx.doi.org/10.3390/en15228378.

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The paper presents results of research performed to find the most suitable cylinder-liner-lubricating-oil feed rates for lubrication of long-stroke, slow-speed marine engines to reduce cylinder oil consumption and reduce engines’ maintenance costs. Obtained research data can be used to increase engines’ reliability, reduce operational costs of the vessels, and improve energy efficiency on board ships. Using analysis of under-piston scavenge drain oil, research has been performed to find the relationship between various engines’ operational factors and the wear intensity of cylinder liners and

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Ursula, Natalia, Ely Nurhidayati, and Gusti Zulkifli Mulki. "Identifikasi Limbah Pelumas Bekas Kendaraan Bermotor Roda 2 dan 4 di Kota Pontianak." Pondasi 27, no. 1 (2022): 1. http://dx.doi.org/10.30659/pondasi.v27i1.22870.

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ABSTRAK Limbah pelumas bekas merupakan salah satu limbah bahan berbahaya dan beracun dari usaha perbengkelan kendaraan bermotor. Penggantian pelumas wajib dilakukan pengguna kendaraan bermotor untuk menjaga performa kendaraan dalam kondisi baik. Penelitian ini memiliki rumusan masalah terkait manajemen pengelolaan limbah pelumas bekas kendaraan bermotor roda 2 dan 4, yang bertujuan menganalisis manajemen limbah pelumas bekas kendaraan bermotor di Kota Pontianak. Penelitian ini menggunakan metode kualitatif deskriptif. Pengumpulan data dilakukan dengan observasi, wawancara, kuesioner, dan dokum

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Sterpu, Ancaelena-Eliza, Anca Iuliana Dumitru, and Mihai-Florinel Popa. "Regeneration of used engine lubricating oil by solvent extraction." Analele Universitatii "Ovidius" Constanta - Seria Chimie 23, no. 2 (2012): 149–54. http://dx.doi.org/10.2478/v10310-012-0025-2.

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AbstractHuge amounts of used lubricating oils from automotive sources are disposed of as a harmful waste into the environment. For this reason, means to recover and reuse these wastes need to be found. Problems arising from acid treatment include environmental problems associated with the disposal of acid sludge and spent earth, low product yield (45-65%) and incomplete removal of metals. The processes of re-refining of used lubricating oils depend greatly on the nature of the oil base stock and on the nature and amount of contaminants in the lubricant resulting from operations. The study was

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Bao, Heyun, Xiaonan Hou, Xin Tang, and Fengxia Lu. "Analysis of temperature field and convection heat transfer of oil-air two-phase flow for ball bearing with under-race lubrication." Industrial Lubrication and Tribology 73, no. 5 (2021): 817–21. http://dx.doi.org/10.1108/ilt-03-2021-0067.

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Purpose Under-race lubrication can increase the amount of lubricating oil entering a bearing and greatly improve lubrication and cooling effects. The oil-air two-phase flow and heat transfer characteristics inside a ball bearing with under-race lubrication play a key role in lubrication and cooling performance. The purpose of this paper is to study these two characteristics, and then provide guidance for lubrication and heat dissipation of bearing with under-race lubrication. Design/methodology/approach In this paper, a simplified three-dimension heat transfer model of ball bearing with under-

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Ding, Yang, and Peng Yun Song. "The Research Progress of Embedded Solid Lubricant Materials." Advanced Materials Research 535-537 (June 2012): 1369–73. http://dx.doi.org/10.4028/www.scientific.net/amr.535-537.1369.

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Embedded solid lubricant materials have good self-lubrication characteristics, which can realize lubrication in special some situations such as low-speed, high-load, high-temperature of the machinery without lubricating oil or grease. This paper presents a review concerning the structure of embedded solid lubrication materials, and its lubricating mechanism, the development of embedded solid lubricant materials, the latest research progress of the influence factors such as different types of metal substrates, mosaic, temperature, load, and porous structure and the application example of bearin

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Ma’arif, Moch Syamsul, I. Nyoman Gede Wardana, Purnami Purnami, et al. "Simulation of the Influence of Eugenol (C₁₀H₁₂O₂) on Jatropha curcas Linn. Oil to Improve Physical Properties of Base Oil." BIO Web of Conferences 104 (2024): 00026. http://dx.doi.org/10.1051/bioconf/202410400026.

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Lubrication in machining process plays a very important role in machining because it increases the productivity and quality of the machining process. Today, most Metalworking Fluids (MWF) are petroleum based ones. Due to its advantages, the consumption of MWF is increasing therefore creating many negative effects on the environment. These effects are related to surface and groundwater, and soil contamination. To address this challenge, various MWF alternatives are being explored by scientists. Vegetable oil is a very attractive alternative to petroleum-based lubricants, because vegetable oils

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Shekerov, O. S., and L. D. Raigcrodskii. "X-ray spectrometric analysis of used lubricating oil." Journal of Applied Spectroscopy 51, no. 5 (1989): 1196–98. http://dx.doi.org/10.1007/bf00664983.

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