Impact of pure biodiesel fuel on the service life of engine-lubricant: A case study

Pereira, F. M.; Velásquez, José Antonio; Riechi, Jorge; Teixeira, Juscelino; Ronconi, Luis Eduardo; Riolfi, Silvio; Abreu, Ricardo Alexandre Magalhães de; Travain, José C.

doi:10.1016/j.fuel.2019.116418

Cited by 17 publications

(14 citation statements)

References 21 publications

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“…While the engine operates, biodiesel will pass through the components and eventually dilute the protecting layer of lubricant on the components, thus reducing the viscosity. Pereira et al [131] noticed a similar trend in the engine lubricant oil viscosity on a mono-articulated bus with biodiesel and diesel fuel, with biodiesel reducing the lubricant oil owing to poorer oxidation stability and increased hygroscopicity in contrast to diesel fuel. The service-life mileage of the engine lubricant oil charge was reduced by biodiesel fuel from 20,000 to 13,000 km for mono-articulated buses and from 15,000 to 10,000 km for bi-articulated buses.…”

Section: Lubricating Oil Propertiesmentioning

confidence: 81%

Applications Characteristics of Different Biodiesel Blends in Modern Vehicles Engines: A Review

et al. 2021

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Two main aspects of the transportation industry are pollution to the environment and depletion of fossil fuels. In the transportation industry, the pollution to the environment can be reduced with the use of cleaner fuel, such as gas-to-liquid fuel, to reduce the exhaust emissions from engines. However, the depletion of fossil fuels is still significant. Biodiesel is a non-toxic, renewable, and biodegradable fuel that is considered an alternative resource to conventional diesel fuel. Even though biodiesel shows advantages as a renewable source, there are still minor drawbacks while operating in diesel engines. Modern vehicle engines are designed to be powered by conventional diesel fuel or gasoline fuel. In this review, the performance, emissions, combustion, and endurance characteristics of different types of diesel engines with various conditions are assessed with biodiesel and blended fuel as well as the effect of biodiesel on the diesel engines. The results show that biodiesel and blended fuel had fewer emissions of CO, HC, and PM but higher NOx emissions than the diesel-fuelled engine. In the endurance test, biodiesel and blended fuel showed less wear and carbon deposits. A high concentration of wear debris was found inside the lubricating oil while the engine operated with biodiesel and blends. The performance, emissions, and combustion characteristics of biodiesel and its blends showed that it can be used in a diesel engine. However, further research on long-term endurance tests is required to obtain a better understanding of endurance characteristics about engine wear of the diesel engine using biodiesel and its blends.

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Section: Lubricating Oil Propertiesmentioning

confidence: 81%

Applications Characteristics of Different Biodiesel Blends in Modern Vehicles Engines: A Review

et al. 2021

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“…There has been much research into the impact of biofuels on engine performance and the impact of biofuels on lubricants and lubrication [48][49][50][51][52][53][54][55][56][57][58][59][60][61][62][63][64].…”

Section: The Impact Of Biofuels On Lubricant Performancementioning

confidence: 99%

“…Chemical analysis of the lubricant also found an increase in fuel residue, increased corrosion and increased oxidation of the engine oil. An 18 month field test on a fleet of buses that used B100 biodiesel [60] found that replacing traditional diesel fuel with B100 diminished the engine lubricant drain period from 20,000 km to 13,000 km (for mono-articulated buses) and from 15,000 km to 10,000 km (for bi-articulated buses). Richard et al [59] reported that the use of biodiesel (at B20 levels) resulted in worse corrosion performance of diesel engine oils.…”

Section: The Impact Of Biofuels On Lubricant Performancementioning

confidence: 99%

Fuel-Lubricant Interactions: Critical Review of Recent Work

Taylor¹

2021

Preprint

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A critical review of recent work on fuel lubricant interactions is undertaken. The work focusses on liquid fuels used in diesel and gasoline vehicles. The amount of fuel that contaminates the lubricant depends on driving conditions, engine design, fuel type and lubricant type. When fuel contaminates a lubricant, the viscosity of the lubricant will change (it will usually decrease), the sump oil level may increase, there may be a tendency for more sludge formation, there may be an impact on friction and wear, and low speed pre-ignition could occur. The increased use of biofuels (particularly biodiesel) may require a reduction in oil drain intervals, and fuel borne additives could contaminate the lubricant. The move to active regeneration of particulate filters by delayed fuel post-injection and the move to hybrid electric vehicles, and vehicles equipped with stop-start systems will lead to increased fuel dilution. This will be of more concern in diesel engines, since significant fuel dilution could still persist at sump oil temperatures in the range 100-150C (whereas in gasoline engines the more volatile gasoline fuel will have substantially evaporated at these temperatures). It is anticipated that more research into fuel lubricant interactions, particularly for diesel engines, will be needed in the near future.

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“…In the medium term however, liquid hydrocarbons will continue to be used for transport applications [5] , [7] . Pereira [8] compared the use of B100 with diesel on a fleet of buses over an 18 month period. The lubricating oil was monitored for Al, Pb, Fe and Cu content and showed that Al, Pb and Fe engine components showed decreased wear due to increased lubricity of B100 over diesel but increased wear of Cu components due to increased reactivity Cu with B100 over diesel.…”

Section: Introductionmentioning

confidence: 99%

An investigation of the effect of temperature on the oxidation processes of metallic diesel engine fuel system materials and B100 biodiesel from used cooking oil in exposure testing

Matbouei

Weston

Liang

et al. 2021

Fuel

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Biodiesel is increasingly being used in automotive and other engine applications because of its potential to contribute to the reduction of CO 2 and other harmful emissions. However, biodiesel is known to be more corrosive in contact with metallic components than petroleum diesel. This work explores the corrosion of aluminium, steel, brass and copper metallic coupons exposed to B100 biodiesel at 25, 80, 90, 100, 110 and 120 °C. The metals that were chosen are commonly found in automotive engines. The B100 in each experiment was sampled at 48, 100, 150, 200 and 270 h and examined by GCMS to determine compositional changes. It was found that corrosion rates for copper were 10x faster than brass and approximately 100x faster than for mild steel, Al7075 and Al1050. Activation energies for corrosion were calculated from mass loss and ICP, with good correlation between the two methods for Cu containing samples. By mass loss, the activation energies for Cu, Brass, Al7075 and Al1050 were calculated to be −47.9 kJ mol −1 , −85.4 kJ mol −1 , −86.7 kJ mol −1 and −54.4 kJ mol −1 , respectively. By ICP analysis, the activation energies for Cu, Brass, and Al7075 were calculated to be −57.9 kJ mol −1 , −90 kJ mol −1 and −140 kJ mol −1 , respectively. Corrosion rates in brass and copper samples were faster owing to the direct reaction of copper with the fatty acid. The copper was found to cause chain scission and greater degradation of the biodiesel.

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Impact of pure biodiesel fuel on the service life of engine-lubricant: A case study

Cited by 17 publications

References 21 publications

Applications Characteristics of Different Biodiesel Blends in Modern Vehicles Engines: A Review

Applications Characteristics of Different Biodiesel Blends in Modern Vehicles Engines: A Review

Fuel-Lubricant Interactions: Critical Review of Recent Work

An investigation of the effect of temperature on the oxidation processes of metallic diesel engine fuel system materials and B100 biodiesel from used cooking oil in exposure testing

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