Experimental assessment of emissions maps of a single-cylinder compression ignition engine powered by diesel and palm oil biodiesel-diesel fuel blends

Mejı́a, Aurora; Leiva, M.; Rincón-Montenegro, Adriana; Gonzalez‐Quiroga, Arturo; Forero, Jorge Duarte

doi:10.1016/j.csite.2020.100613

Cited by 19 publications

(15 citation statements)

References 24 publications

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“…Hence, various biofuels blends have been proposed from different raw materials such as vegetable oils and animal fats. This technique is increasing interest due to the simplicity and suitable incorporation in ICEs without major modifications [10,11]. Also, the physicochemical characteristics of biodiesel blends are most likely compatible with those of conventional diesel, which reinforces its implementation [12].…”

Section: Introductionmentioning

confidence: 99%

“…The study on emissions control is quite extensive, and most of the studies agreed that biodiesel blends reduce a great share of greenhouse emissions [10]. NOx emissions appeared to be the negative effect of this technique; therefore, upcoming studies center on the exploration of new blends that guarantee maximum global emissions minimization.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and economic assessment of alkaline electrolyzer for dual-fuel operation in low-displacement diesel engines

Maestre-Cambronel

Hernández

Forero

2021

DYNA

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This investigation evaluated the integration of an alkaline electrolyzer for dual-fuel operation in an experimental test bench of a diesel engine from a techno-economic viewpoint. The characterization of the electrolyzer operation indicated that higher electrolyte (KOH) concentrations (30 – 40% w/w) improve the overall performance since less voltage is required for electrolysis, thus featuring higher efficiencies (50 – 60%) and hydrogen production (4 – 6 LPM). The economic analysis demonstrated that hydrogen cost remains competitive (4.3 - 5.6 USD/kg), and it is greatly dependent on the electrolyte concentration. Additionally, the operation of the engine with hydrogen injection at 20 LPM and a palm biodiesel blend reduced the fuel consumption rate between 10 – 31% depending on the load rate when compared to pure diesel. In contrast, dual-fuel operation generated a minor reduction in fuel conversion efficiency (< 5%), which reflects on the power output. Overall, this technology stands as a promising avenue to improve the fuel utilization ratio.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental and economic assessment of alkaline electrolyzer for dual-fuel operation in low-displacement diesel engines

Maestre-Cambronel

Hernández

Forero

2021

DYNA

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“…However, the increased exploitation of ICEs is one main driver of the accelerated depletion of fossil fuels and the large emissions of greenhouse gases and other pollutants [6,7,8,9]. Commercial vehicles represent around 38% of the global consumption of fossil fuels [10] while accounting for 16.4% of the global emissions of CO 2 [11,12].…”

Section: Introductionmentioning

confidence: 99%

Experimental study of the potential for thermal energy recovery with thermoelectric devices in low displacement diesel engines

Ramírez-Restrepo

Sagastume-Gutiérrez

Cabello-Eras

et al. 2021

Heliyon

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“…The interaction between the piston rings and the cylinder liner in internal combustion engines is one of the processes of great relevance for the proper functioning of the engine since this has an effect on oil consumption, fuel consumption, losses due to friction, polluting emissions and performance [1][2][3][4][5]. According to the investigations carried out, the losses due to the friction between the contact of the piston rings and the cylinder chamber represent between 26%-49% of the total losses [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Geometric Profile of Top Ring on the Tribological Characteristics of a Low-Displacement Diesel Engine

2020

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The present study aims to analyze the influence of the geometric profile of the compression ring on the tribological properties of the lubricant. Additionally, the influence of the rotation speed and the engine load on the state of the lubricant is evaluated. For this study, a single-cylinder diesel engine is taken as the basis, from which a CAD model of the combustion chamber-piston assembly was made. In addition, the conditions in the cylinder chamber were analyzed when the engine operates at a rotation speed of 3000, 3300, 3600, and 3900 rpm, and a load of 1.5, 3.0, 4.5, and 6.0 N. The calculations were developed using the OpenFOAM® simulation software. The results obtained show that changes in the geometric profile of the ring can contribute to reducing the hydrodynamic friction force by 13% and the friction force caused by roughness by 61%. This implies a decrease in the power lost by friction. In general, the modification of the geometric profile allowed a reduction of 21% in the lost power associated with friction. Additionally, it was observed that the shape of the profile allows to reduce the pressure in the lubricant by 65% and obtain a greater thickness of the lubrication film. On average, an increase of 300 rpm and 1.5 N in the speed and load of the engine causes the friction force and power losses to increase by 45% and 10%. The above results imply that the geometric profile of the compression ring can improve tribological performance in the engine, allowing a reduction in fuel and better lubricant performance.

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Experimental assessment of emissions maps of a single-cylinder compression ignition engine powered by diesel and palm oil biodiesel-diesel fuel blends

Cited by 19 publications

References 24 publications

Experimental and economic assessment of alkaline electrolyzer for dual-fuel operation in low-displacement diesel engines

Experimental and economic assessment of alkaline electrolyzer for dual-fuel operation in low-displacement diesel engines

Experimental study of the potential for thermal energy recovery with thermoelectric devices in low displacement diesel engines

Effect of the Geometric Profile of Top Ring on the Tribological Characteristics of a Low-Displacement Diesel Engine

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