Effect of hBN/Al2O3 Nanoparticle Additives on the Tribological Performance of Engine Oil

2014 ◽  
Vol 66 (3) ◽  
Author(s):  
Muhammad Ilman Hakimi Chua Abdullah ◽  
Mohd Fadzli Abdollah ◽  
Hilmi Amiruddin ◽  
Noreffendy Tamaldin ◽  
Nur Rashid Mat Nuri
Keyword(s):  
Diesel Engine ◽  
Hexagonal Boron Nitride ◽  
Fuel Efficiency ◽  
Tribological Performance ◽  
Engine Oil ◽  
Wear Scar Diameter ◽  
Engine Wear ◽  
The Coefficient Of Friction ◽  
Al2o3 Nanoparticle ◽  
Nanoparticle Additives

Nanotechnology currently has an important role in reducing engine wear and improving fuel efficiency within engines using nanoparticle additives in engine oil. In this work, the effect of hexagonal boron nitride (hBN) and alumina (Al2O3) nanoparticle additives, on the tribological performance of SAE 15W40 diesel engine oil, was studied. A tribological test was conducted using a four-ball tribotester. The results show that the coefficient of friction (COF) and wear rate of the ball reduced significantly by dispersing hBN nanoparticle additives in SAE 15W40 diesel engine oil; compared to without or with Al2O3 nanoparticle additives. This is in accordance with the significant reduction of wear scar diameter and smoother worn surfaces observed on the balls.

Effect of hexagonal boron nitride nanoparticles as an additive on the extreme pressure properties of engine oil

2016 ◽  
Vol 68 (4) ◽  
pp. 441-445 ◽  
Author(s):  
Muhammad Ilman Hakimi Chua Abdullah ◽  
Mohd Fadzli Bin Abdollah ◽  
Noreffendy Tamaldin ◽  
Hilmi Amiruddin ◽  
Nur Rashid Mat Nuri
Keyword(s):  
Diesel Engine ◽  
Boron Nitride ◽  
Hexagonal Boron Nitride ◽  
Experimental Studies ◽  
Engine Oil ◽  
Lubricating Oil ◽  
Extreme Pressure ◽  
Content Type ◽  
Load Carrying ◽  
Sonication Technique

Purpose This paper aims to investigate the effect of hexagonal boron nitride (hBN) nanoparticles on extreme pressure (EP) properties when used as an additive in lubricating oil. Design/methodology/approach The nano-oil was prepared by dispersing an optimal composition of 0.5 vol. per cent of 70 nm hBN in SAE 15W-40 diesel engine oil using a sonication technique. The tribological testing was performed using a four-ball tribometer according to the ASTM standard. Findings It was found that the nano-oil has a potential to decelerate the seizure point on the contact surfaces, where higher EP can be obtained. More adhesive wear was observed on the worn surfaces of ball bearing lubricated with SAE 15W-40 diesel engine oil as compared with the nano-oil lubrication. Originality/value The results of the experimental studies demonstrated the potential of hBN as an additive for improving the load-carrying ability of lubricating oil.

Physicochemical properties and tribological performance of motorbike lubricant dispersed with surface-modified WS2 nanoparticles

2019 ◽  
Vol 233 (9) ◽  
pp. 1379-1388 ◽  
Author(s):  
V Srinivas ◽  
RN Thakur ◽  
AK Jain ◽  
M Saratchandra Babu
Keyword(s):  
Physicochemical Properties ◽  
Fuel Consumption ◽  
Viscosity Index ◽  
Tribological Performance ◽  
Engine Oil ◽  
Engine Wear ◽  
Endurance Tests ◽  
The Stability ◽  
Surface Modified ◽  
Engine Components

This paper investigates the effect of dispersion of surface-modified WS2 nanoparticles on the tribological performance and physicochemical properties of motorbike lubricant. Surface-assisted WS2 nanoparticles were dispersed in motorbike engine oil and an optimum amount of surfactant for best stability of the lubricant suspension was found by investigating the changes in the physicochemical properties of lubricant. The stability analysis using light scattering techniques confirmed the stability of nanoparticles dispersed in lubricant medium and surface-modified WS2 nanoparticles remained stable for 180 days. The physicochemical properties were evaluated as per ASTM standards over a period of two months to check the state of lubricant and observable changes in the properties during this period. The tribological performance of the lubricants was assessed by conducting endurance tests on a 100 cc motor bike. The performance was evaluated by checking the wear of the engine components and fuel consumption. It was found that there were no abnormal changes in the physicochemical properties of lubricant up to a certain surfactant to nanoparticle ratio indicating its utility in automotive engines. However, if the amount of surfactant was increased beyond optimum quantity abnormal changes are seen in the viscosity index, leading to the deterioration of key lubricant properties. Lubricant dispersed with WS2 nanoparticles gave good performance characterized by the reduction in both engine wear and fuel consumption. Worn surfaces of the oil rings after the endurance test were assessed for deposits and it was found that a layer of WS2 deposited on the oil ring surface that reduced friction and wear.

Development of JASO GLV-1 0W-8 Low Viscosity Engine Oil for Improving Fuel Efficiency considering Oil Consumption and Engine Wear Performance

2020 ◽  
Author(s):  
Sachiko Okuda ◽  
Hiroki Saito ◽  
Seiichi Nakano ◽  
Yusuke Koike ◽  
Takumaru Sagawa ◽  
...  
Keyword(s):  
Fuel Efficiency ◽  
Engine Oil ◽  
Oil Consumption ◽  
Wear Performance ◽  
Low Viscosity ◽  
Engine Wear

scholarly journals OPTIMIZATION OF WASTE MOTOR OIL IN SHIP DIESEL WITH HIGH BOOST BY WEAR CRITERION

2018 ◽  
pp. 78-86
Author(s):  
Maxim Igorevich Tarasov ◽  
Georgy Alexandrovich Gauk ◽  
Liudmila Anatolievna Semeniuk
Keyword(s):  
Diesel Engine ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Optimal Level ◽  
Engine Oil ◽  
Resource Saving ◽  
Engine Wear ◽  
The Impact

The results of modeling the impact of oil burning on the condition of the ship forced trunk piston diesel engine when using lubricants with different operating properties. The dependence of wear rate on oil fume, the quality of used lubricants and marine diesel forcing is obtained by modeling wear using the theory of planning experiments. The area of minimal wear has been determined. There has been detected the most efficient waste oil providing favorable conditions for resource-saving operation of the internal combustion engine. It is inferred that reduction of engine oil fume changes the main parameters of its aging. At the same time, the intensity of oil aging in main directions and of engine wear reduce from 0.75 to 2.25 g/(kW∙h), whereas the fume increases. Its further increase is accompanied by an increase in the rate of oil aging and engine wear. The detected "fracture" depending on И( g y) after passing the border g yopt = 2.25-2.5 g/(kW∙h) is stipulated by different ratio of oil exchange in the lubrication system and the ingress of gases into the crankcase. There has been determined the degree of oil burning, at which sludging and lacquer formation of the internal combustion engine is least intense. The smallest carbon deposits on pistons and in the crankcase of the engine can be observed when the diesel engine is operating in the zone of optimal carbonation. Experimentally, the dependence of tribotechnical properties, in particular, wear of insoluble products of oil aging has been detected at different degrees of oil burning. It is revealed that these characteristics also depend on the quality of the used fuels and lubricants and the conditions of formation and turnover of the oil film on the mirror of the cylinder, the thermal effect on it of the engine workflow. The result of simulation is the prediction of resource-saving operation of marine trunk diesel engines by maintaining oil fume at the optimal level.

The performance and exhaust emissions investigation of a diesel engine using γ-Al2O3 nanoparticle additives to biodiesel

2016 ◽  
Vol 7 (3-4) ◽  
pp. 233-241 ◽  
Author(s):  
R.L. Krupakaran ◽  
T. Hariprasasd ◽  
A. Gopalakrishna ◽  
Pejjai Babu
Keyword(s):  
Diesel Engine ◽  
Exhaust Emissions ◽  
Al2o3 Nanoparticle ◽  
Nanoparticle Additives

scholarly journals Synergistic Study of Solid Lubricant Nano-Additives Incorporated in canola oil for Enhancing Energy Efficiency and Sustainability

2021 ◽  
Vol 14 (1) ◽  
pp. 290
Author(s):  
Soumya Sikdar ◽  
Md Hafizur Rahman ◽  
Pradeep L. Menezes
Keyword(s):  
Vegetable Oils ◽  
Canola Oil ◽  
Hexagonal Boron Nitride ◽  
Low Cost ◽  
Tribological Performance ◽  
Base Oil ◽  
The Coefficient Of Friction ◽  
Nano Lubricant ◽  
Interacting Surfaces ◽  
Disk Test

In recent years, with the development of eco-friendly lubricants, different vegetable oils have been studied and found to improve the overall tribological performance compared to petroleum-based oils. Being one of the commonly used vegetable oils, canola oil has become popular due to its non-toxicity and low cost. However, this bio-lubricant lacks tribological performance compared to petroleum-based oils. To improve its performance, sustainable solid additives such as graphene nanoplatelet (GNP) and hexagonal boron nitride (hBN) have recently gained the researcher’s attention. While incorporating nanomaterials in the oil as additives is a promising way to improve base oil’s performance, the excessive use of nanoparticles can introduce undesirable effects. This study investigated canola oil’s tribological performances with the addition of 0.5, 1.0, 1.5, and 2.0 wt.% GNP and 0.5, 1.0, and 1.5 wt.% hBN nanoparticles. The dynamic viscosities of these seven settings showed higher viscosity for GNP-incorporated oils compared to that with hBN. The boundary lubrication regime was targeted for the coefficient of friction (COF) and wear analyses during each pin on the disk test. It was observed that for the GNP, 1.5 wt.% provided the minimum COF (52% less than base oil), whereas, for the hBN, 1.0 wt.% provided the lowest (40% less than base oil) values. Based on these insights, three nano lubricant mixtures were formulated by incorporating both GNP and hBN settings in different ratios. These mixtures provided an optimum positive synergy by reducing 56% friction and 90% wear compared to the base oil. These percentage values were significantly more compared to both GNP and hBN based lubricants in their individual settings. These improvements in the mixture were due to a composite film formed which protected the interacting surfaces and also due to the polishing mechanisms. Therefore, incorporating both these nanoparticles in canola oil could reduce friction and wear and thus help in better energy conservation.

Impact of Oil Additive Characteristics on Biofuel Engine Wear Using Electron Microscopy and Confocal Microscopy

2019 ◽  
Vol 798 ◽  
pp. 113-121
Author(s):  
Panyakorn Rungsritanapaisan ◽  
Preechar Karin ◽  
Dhritti Tanprayoon ◽  
Ruangdaj Tongsri ◽  
Katsunori Hanamura
Keyword(s):  
Diesel Engine ◽  
Research Study ◽  
Combustion Process ◽  
High Volume ◽  
Particle Size Analysis ◽  
Engine Oil ◽  
Size Analysis ◽  
Case Scenario ◽  
Worst Case ◽  
Engine Wear

Soot particles are produced during combustion process in the diesel engine. These particles will later exhaust into the thermosphere and part of them will contaminate the engine oil. When the lubricant is contaminated with soot, diesel engine abrasion or in a worst-case scenario lubricant starvation occurs. This situation will eventually lead into engine ware. High volume of soot also raises acid level of the area. If this state co-occurs with high temperature of the engine and volatile gases during operation, engine corrosion may also be produced. This research study the effect of additive volume on the dispersion of soot in engine oil and effect of additive on size and volume of soot which affect to mechanism of ware in metal by tribology four-ball tester, image analysis by scanning electron microscope and particle size analysis by laser diffraction technique.

Effects of Waste Vegetable Oil/Water Emulsions on the Emissions of a Listeroid Diesel Engine

2009 ◽  
Author(s):  
Thomas J. Reding ◽  
Mohammad Naraghi ◽  
Stephen Bosco ◽  
Sergio A. Rodriguez ◽  
Alexander W. Miranda ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Vegetable Oil ◽  
Fuel Efficiency ◽  
Gaseous Emissions ◽  
Water Addition ◽  
Engine Emissions ◽  
Waste Vegetable Oil ◽  
Diesel Engine Emissions ◽  
Engine Wear ◽  
Unburned Hydrocarbons

This study presents the experimentally determined effects of filtered, heated, waste vegetable oil (WVO) and water emulsions on gaseous emissions, opacity, and fuel efficiency of a Listeroid diesel engine. Emissions studied are NOx, CO, CO2, SO2, O2, unburned hydrocarbons (UHCs), and opacity. WVO emulsions with water additions of 0%, 10%, 20%, 30%, and 40% by weight, heated to 95°C at injection are studied, and results are compared to diesel. The water addition limit was found to be between 41–49%, inclusive, at 50% load. Emulsions are maintained with a magnetic stirrer prior to entry into the fuel line. The WVO is preheated using heat from the exhaust gases. This reduces its viscosity prior to entering the fuel pump, reducing engine wear, pumping losses, and fuel starvation. The WVO is heated again to 95°C immediately before injection, using an externally powered heater to standardize test conditions. A new metric is introduced, namely, brake specific global warming potential (BSGWP). There is a significant reduction in BSGWP at 50% engine load and 30% water addition. Emissions from 40% water addition most closely resemble diesel engine emissions at all engine loads and are consistently lower than with pure WVO.

Effect of Diluted Nano-Oil on the Anti-Wear and Friction Properties

2016 ◽  
Vol 1133 ◽  
pp. 452-456
Author(s):  
Muhammad Ilman Hakimi Chua Abdullah ◽  
Mohd Fadzli bin Abdollah ◽  
Hilmi Amiruddin ◽  
Noreffendy Tamaldin ◽  
Nur Rashid Mat Nuri
Keyword(s):  
Diesel Engine ◽  
Wear Rate ◽  
Coefficient Of Friction ◽  
Engine Oil ◽  
Biodiesel Fuel ◽  
Optimal Composition ◽  
Standard Result ◽  
Wear And Friction ◽  
The Coefficient Of Friction ◽  
Sonication Technique

Experimental work procedures on the anti-wear and friction properties were conducted to investigate the effect of nano-oil diluted with biodiesel fuel. In this work, an optimal composition (0.5 vol.%) of 70nm hBN nanoparticles was dispersed into SAE15W40 diesel engine oil by using sonication technique as a nano-oil. The homogenize nano-oil then was diluted by four difference percentages of B100 biodiesel fuel (5%, 10%, 15%, 20%). The anti-wear and friction tests were performed using four-ball tribometer according to the ASTM D-4172 standard. Result found that the addition of biodiesel fuel into homogenize nano-oil increases the coefficient of friction (COF) drastically by 25 ~ 96%, as compared with nano-oil and the wear rate also increase approximately by 9.68 ~ 19.50%.

Research of engine oil that contains carbon black for diesel engine wear evaluation

2002 ◽  
Vol 2002.7 (0) ◽  
pp. 85-86
Author(s):  
Hidetsugu YAMAMOTO ◽  
Miki SASAKI ◽  
Noboru FURUKI ◽  
Mineo KAGAYA ◽  
Naochika TOKUOKA
Keyword(s):  
Diesel Engine ◽  
Carbon Black ◽  
Engine Oil ◽  
Engine Wear ◽  
Wear Evaluation
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