Impact of biodiesel fuel on cold starting of automotive direct injection diesel engines

Broatch, A.; Tormos, Bernardo; Olmeda, Pablo; Novella, Ricardo

doi:10.1016/j.energy.2014.06.062

Cited by 53 publications

(42 citation statements)

References 26 publications

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“…The idea was that the most prominent alternative fuels for replacing fossil fuels in internal combustion engines would be biofuels (biodiesel, bioethanol, bio-methanol, etc.). Biofuels that are obtained from vegetable oil resources seem to be a very good substitute for fossil fuels; their production is rather simple; they are cleaner, biodegradable, nontoxic, recyclable, and benzene-free [1,6,[8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Review on the Use of Diesel–Biodiesel–Alcohol Blends in Compression Ignition Engines

2019

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The use of alternative fuels contributes to the lowering of the carbon footprint of the internal combustion engine. Biofuels are the most important kinds of alternative fuels. Currently, thanks to the new manufacturing processes of biofuels, there is potential to decrease greenhouse gas (GHG) emissions, compared to fossil fuels, on a well-to-wheel basis. Amongst the most prominent alternative fuels to be used in mixtures/blends with fossil fuels in internal combustion (IC) engines are biodiesel, bioethanol, and biomethanol. With this perspective, considerable attention has been given to biodiesel and petroleum diesel fuel blends in compression ignition (CI) engines. Many studies have been conducted to assess the impacts of biodiesel use on engine operation. The addition of alcohols such as methanol and ethanol is also practised in biodiesel–diesel blends, due to their miscibility with the pure biodiesel. Alcohols improve the physico-chemical properties of biodiesel–diesel blends, which lead to improved CI engine operation. This review paper discusses some results of recent studies on biodiesel, bioethanol, and biomethanol production, their physicochemical properties, and also, on the influence of the use of diesel–biodiesel–alcohols blends in CI engines: combustion characteristics, performance, and emissions.

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Section: Introductionmentioning

confidence: 99%

Review on the Use of Diesel–Biodiesel–Alcohol Blends in Compression Ignition Engines

2019

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“…To the authors' knowledge, however, there are only a few studies focusing on the assessment of the impact of biodiesel blends on the compression ignition engine cold startability. For instance, Broatch et al [22] approached this subject showing that at 0,´5 and´10˝C, the engine's starting performance deteriorated when the blend ratio was increased. Moreover, in order to improve the cold flow characteristics of biodiesel blends based fuels, the same researchers [22] mention the use of specific additives (e.g., a very low content of olefin-ester copolymer of around 0.03% decreases the dynamic viscosity of soybean biodiesel by 33%) or suggest blending the given biodiesel with other fuels, such as ethanol or kerosene (e.g., such a blend with ratios up to 20% of ethanol or kerosene also decreases the kinematic viscosity by 30% and promotes fuel atomization).…”

Section: Cold Startingmentioning

confidence: 99%

“…For instance, Broatch et al [22] approached this subject showing that at 0,´5 and´10˝C, the engine's starting performance deteriorated when the blend ratio was increased. Moreover, in order to improve the cold flow characteristics of biodiesel blends based fuels, the same researchers [22] mention the use of specific additives (e.g., a very low content of olefin-ester copolymer of around 0.03% decreases the dynamic viscosity of soybean biodiesel by 33%) or suggest blending the given biodiesel with other fuels, such as ethanol or kerosene (e.g., such a blend with ratios up to 20% of ethanol or kerosene also decreases the kinematic viscosity by 30% and promotes fuel atomization). The same ideas were found in [23,24], which state that the most acceptable option to make the biodiesel available as a stand-alone fuel alternative to ordinary diesel is with the use of additives.…”

Section: Cold Startingmentioning

confidence: 99%

Impact of Biodiesel Blends and Di-Ethyl-Ether on the Cold Starting Performance of a Compression Ignition Engine

et al. 2016

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Abstract:The use of biodiesel fuel in compression ignition engines has the potential to reduce CO 2 , which can lead to a reduction in global warming and environmental hazards. Biodiesel is an attractive fuel, as it is made from renewable resources. Many studies have been conducted to assess the impact of biodiesel use on engine performances. Most of them were carried out in positive temperature conditions. A major drawback associated with the use of biodiesel, however, is its poor cold flow properties, which have a direct influence on the cold starting performance of the engine. Since diesel engine behavior at negative temperatures is an important quality criterion of the engine's operation, one goal of this paper is to assess the starting performance at´20˝C of a common automotive compression ignition engine, fueled with different blends of fossil diesel fuel and biodiesel. Results showed that increasing the biodiesel blend ratio generated a great deterioration in engine startability. Another goal of this study was to determine the biodiesel blend ratio limit at which the engine would not start at´20˝C and, subsequently, to investigate the impact of Di-Ethyl-Ether (DEE) injection into the intake duct on the engine's startability, which was found to be recovered.

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“…4 Many researches illustrated that elevation of diesel fuel temperature not only improves cold-start emissions of engine, but also was beneficial for its cold start. 2,5 Effective atomization of diesel fuel could increase the contact area with in-cylinder compressed air, fuel evaporates quickly and mixes with air extensively, and finally, there is a more complete combustion and less pollution production. There are lots of factors affecting diesel fuel atomization, such as fuel temperature, incylinder air temperature and pressure, fuel injection pressure and nozzle structure, and so on.…”

Section: Introductionmentioning

confidence: 99%

Research of fuel temperature control in fuel pipeline of diesel engine using positive temperature coefficient material

Sun

et al. 2016

Advances in Mechanical Engineering

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As fuel temperature increases, both its viscosity and surface tension decrease, and this is helpful to improve fuel atomization and then better combustion and emission performances of engine. Based on the self-regulated temperature property of positive temperature coefficient material, this article used a positive temperature coefficient material as electric heating element to heat diesel fuel in fuel pipeline of diesel engine. A kind of BaTiO 3 -based positive temperature coefficient material, with the Curie temperature of 230°C and rated voltage of 24 V, was developed, and its micrograph and element compositions were also analyzed. By the fuel pipeline wrapped in six positive temperature coefficient ceramics, its resistivity-temperature and heating characteristics were tested on a fuel pump bench. The experiments showed that in this installation, the surface temperature of six positive temperature coefficient ceramics rose to the equilibrium temperature only for 100 s at rated voltage. In rated power supply for six positive temperature coefficient ceramics, the temperature of injection fuel improved for 21°C-27°C within 100 s, and then could keep constant. Using positive temperature coefficient material to heat diesel in fuel pipeline of diesel engine, the injection mass per cycle had little change, approximately 0.3%/°C. This study provides a beneficial reference for improving atomization of high-viscosity liquids by employing positive temperature coefficient material without any control methods.

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Impact of biodiesel fuel on cold starting of automotive direct injection diesel engines

Cited by 53 publications

References 26 publications

Review on the Use of Diesel–Biodiesel–Alcohol Blends in Compression Ignition Engines

Review on the Use of Diesel–Biodiesel–Alcohol Blends in Compression Ignition Engines

Impact of Biodiesel Blends and Di-Ethyl-Ether on the Cold Starting Performance of a Compression Ignition Engine

Research of fuel temperature control in fuel pipeline of diesel engine using positive temperature coefficient material

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