Effects of different biofuels blends on performance and emissions of an automotive diesel engine

Millo, Federico; Debnath, Biplab Kumar; Vlachos, Theodoros; Ciaravino, Claudio; Postrioti, Lucio; Buitoni, Giacomo

doi:10.1016/j.fuel.2015.06.096

Cited by 73 publications

(28 citation statements)

References 31 publications

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“…e engine was running smoothly at a steady speed of 1500 RPM, without obvious alteration in noise radiation during operation with ULSD and HUCO blends. is was expected as no malfunctions have been reported so far in the literature even with engines running neat paraffinic fuels [20,33,[38][39][40][41][42] is is naturally attributed to HUCO's higher heating value (Table 1), as also shown in previous studies on similar paraffinic fuels from hydroprocessing [7,30,32,33,39].…”

Section: Engine Resultssupporting

confidence: 73%

“…is is attributed to the aliphatic nature of the compounds used for the production of such paraffinic fuels [23,29,30]. e density and viscosity are important properties of the fuel since they are related to the amount of injected fuel, ignition quality, fuel atomization, combustion characteristics, and volumetric fuel consumption [23,[31][32][33][34].…”

Section: Density and Viscositymentioning

confidence: 99%

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Exhaust Emissions and Physicochemical Properties of Hydrotreated Used Cooking Oils in Blends with Diesel Fuel

Zahos-Siagos

Karonis

2018

International Journal of Chemical Engineering

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Hydroprocessing of liquid biomass is a promising technology for the production of “second generation” renewable fuels to be used in transportation. Its products, normal paraffins, can be further hydrotreated for isomerization in order to improve their cold flow properties. The final product, usually referred to as “paraffinic diesel,” is a high cetane number, clean burning biofuel which is rapidly gaining popularity among researchers and the industry. Nevertheless, the costly isomerization step can be omitted if normal paraffins are to be directly mixed with conventional diesel in low concentrations. In this work, nonisomerized paraffinic diesel produced through hydrotreating of used cooking oil (hydrotreated used cooking oil (HUCO)) has been used in 4 blends (up to 40% v/v) with conventional diesel fuel. The blends’ properties have been assessed comparatively to European EN 590 and EN 15940 standards (concerning conventional automotive diesel fuels and paraffinic diesel fuels from synthesis or hydrotreatment, resp.). Furthermore, the HUCO blends have been used in a standard stationary diesel engine-generator set. The blends have been considered as “drop-in replacements” for standard diesel fuel. As such, no engine modifications took place whatsoever. The engine performance and exhaust emissions of steady-state operation have been examined in comparison with engine operation with the baseline conventional diesel fuel.

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Section: Engine Resultssupporting

confidence: 73%

Section: Density and Viscositymentioning

confidence: 99%

Exhaust Emissions and Physicochemical Properties of Hydrotreated Used Cooking Oils in Blends with Diesel Fuel

Zahos-Siagos

Karonis

2018

International Journal of Chemical Engineering

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“…CO emissions were reduced with HVO alternative fuel especially during the first urban cycle where these emissions were very high. These trends suggest that the composition of alternative fuels supports a cleaner combustion [26]. In the case of our study, the highest concentration was measured in D50H30B20 fuel and HVO fuel showed a lower concentration of CO.…”

Section: Discussionsupporting

confidence: 59%

The Impact of Selected Biofuels on the Skoda Roomster 1.4TDI Engine’s Operational Parameters

et al. 2019

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Road transport is increasing all around the globe and biofuels have come to the forefront of public interest. According to Article 3, Directive 2009/28/EC, each member state has to ensure that an energy share from renewable sources in all forms of transportation reaches at least 10% of the final consumption of energy in transportation until 2020. The blending of biofuels is one of the methods available to member states to meet this target and it might even be expected to be a main contributor. This article analyses and compares selected biofuels, their chemical properties and their influence on engine operational parameters. The operational parameters of the diesel engine of the Skoda Roomster 1.4 TDI were measured on a chassis dynamometer according to the NEDC driving cycle, and pure diesel fuel, HVO and a blend of fuels (diesel fuel, HVO and butanol) were used for comparison. Operation on biofuels shows a slight decrease in performance parameters up to 10% and an increase in emission production (especially CO in the case of D50H30B20). Positive influences of biofuels were proven with a decrease in exhaust gas opacity and particulate matter production, up to 50% in the case of D50H30B20.

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“…A disadvantage specific for biodiesel is its lower energy density, leading to a higher fuel consumption and a decrease in torque and power at full load conditions [9]. HVO, however, has no or minor negative influence on fuel consumption and engine power [3,10]. Particle number size distributions were mostly shifting toward smaller sizes with an increased portion of biodiesel in the fuel [4,11].…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Toxic Responses of Organic Extracts from Diesel and Selected Alternative Fuels Engine Emissions in Human Lung BEAS-2B Cells

Líbalová

Rössner

Vrbová

et al. 2016

IJMS

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This study used toxicogenomics to identify the complex biological response of human lung BEAS-2B cells treated with organic components of particulate matter in the exhaust of a diesel engine. First, we characterized particles from standard diesel (B0), biodiesel (methylesters of rapeseed oil) in its neat form (B100) and 30% by volume blend with diesel fuel (B30), and neat hydrotreated vegetable oil (NEXBTL100). The concentration of polycyclic aromatic hydrocarbons (PAHs) and their derivatives in organic extracts was the lowest for NEXBTL100 and higher for biodiesel. We further analyzed global gene expression changes in BEAS-2B cells following 4 h and 24 h treatment with extracts. The concentrations of 50 µg extract/mL induced a similar molecular response. The common processes induced after 4 h treatment included antioxidant defense, metabolism of xenobiotics and lipids, suppression of pro-apoptotic stimuli, or induction of plasminogen activating cascade; 24 h treatment affected fewer processes, particularly those involved in detoxification of xenobiotics, including PAHs. The majority of distinctively deregulated genes detected after both 4 h and 24 h treatment were induced by NEXBTL100; the deregulated genes included, e.g., those involved in antioxidant defense and cell cycle regulation and proliferation. B100 extract, with the highest PAH concentrations, additionally affected several cell cycle regulatory genes and p38 signaling.

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Effects of different biofuels blends on performance and emissions of an automotive diesel engine

Cited by 73 publications

References 31 publications

Exhaust Emissions and Physicochemical Properties of Hydrotreated Used Cooking Oils in Blends with Diesel Fuel

Exhaust Emissions and Physicochemical Properties of Hydrotreated Used Cooking Oils in Blends with Diesel Fuel

The Impact of Selected Biofuels on the Skoda Roomster 1.4TDI Engine’s Operational Parameters

Comparative Analysis of Toxic Responses of Organic Extracts from Diesel and Selected Alternative Fuels Engine Emissions in Human Lung BEAS-2B Cells

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