The kinematic viscosity of conventional and bio-based fuel blends as a key parameter to indirectly estimate the performance of compression-ignition engines for agricultural purposes

Bietresato, Marco; Bolla, Anna; Caligiuri, Carlo; Renzi, Massimiliano; Mazzetto, Fabrizio

doi:10.1016/j.fuel.2021.120817

Cited by 10 publications

(7 citation statements)

References 48 publications

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“…This suggests the limiting factor could be the market's willingness to accept fuels that satisfy the ISO 8217 specifications, but which have certain properties that are outside the typical ranges of existing fuels. 52 3.4 Reformulated jet fuel: aviation gas turbines Similar to diesel, Fig. 6 illustrates the scope for reducing the lifecycle GHG emissions of jet fuel using an investment-based reformulation approach may be limited.…”

Section: Reformulated Residual Fuel Oil and Distillates: Marine Enginesmentioning

confidence: 99%

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Low carbon transportation fuels: deployment pathways, opportunities and challenges

Morganti,

Moljord,

Pearson

et al. 2024

Energy Environ. Sci.

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Section: Reformulated Residual Fuel Oil and Distillates: Marine Enginesmentioning

confidence: 99%

Section: Reformulated Fuels In Existing Enginesmentioning

confidence: 99%

Low carbon transportation fuels: deployment pathways, opportunities and challenges

Morganti,

Moljord,

Pearson

et al. 2024

Energy Environ. Sci.

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“…The consistency of the multi-component thermal properties may significantly affect the system efficiency. Bietresato et al [44] investigated the kinematic viscosity of fuel blends with diesel oil-biodiesel-bioethanol and its effect on engine performance. It was noted that the Experimental system reported in [11], including (1) a methanol/KOH mixture container, (2) reflux condenser, (3) heating bath, (4) temperature controller, and (5) magnetic stirrer.…”

Section: Hybrid Bio-energy Systemsmentioning

confidence: 99%

“…The consistency of the multi-component thermal properties may significantly affect the system efficiency. Bietresato et al [44] investigated the kinematic viscosity of fuel blends with diesel oil-biodiesel-bioethanol and its effect on engine performance. It was noted that the viscosity of the mixed bio-fuel progressively increased by 38% at 40 • C while the biodiesel percentage ranged from 0 to 100%.…”

Section: Hybrid Bio-energy Systemsmentioning

confidence: 99%

Recent Advances in Technologies, Methods, and Economic Analysis for Sustainable Development of Energy, Water, and Environment Systems

et al. 2022

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Sustainability has become a broad societal goal, aiming to ensure that human beings coexist safely and harmoniously with nature over a longer time. The influence of the COVID-19 pandemic on the global economy is coming to an end. The development and merits of sustainable energy supply, advanced technology, and economic features have received significant attention over the last few decades. However, significant gaps still exist with respect to how to design, construct, and implement hybrid and optimal energy systems with the lowest investment and cost. Since 2002, the Sustainable Development of Energy, Water, and Environment Systems (SDEWES) conferences have become a significant meeting venue for researchers to introduce, discuss, share, and disseminate novel concepts and ideas. This paper presents an overview of published articles in the Special Issues (SIs) dedicated by the series SDEWES conferences, especially those published in Energies recommended by the 16th SDEWES Conference, which was held on 10–15 October 2021 in Dubrovnik, Croatia. This SI in Energies focused on four main topics, including the application of renewable bioenergy, component enhancement in renewable systems, sustainable development for buildings and economic analysis and evaluation for sustainability. The collected papers provide insight into the topics related to recent advances in improving sustainable efficiency, including studies on waste-to-wealth techniques, utilization of hybrid bioenergy systems, heat exchangers and other components for performance enhancement, energy supply and demand analysis, low-temperature DHC systems, techno-economic assessment, and environmental evaluation.

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“…Other properties, compared to mineral diesel, include a higher cetane number, lubricity, and flash point, while the toxicity is reduced. Among the detrimental characteristics, it is possible to list its lower volatility, the calorific value, the oxidation stability [10,11], and the higher viscosity [12] and pour point [13] that, however, can be adjusted due to new processes that improve the low temperature performance of biodiesels [5][6][7]. When the biodiesel is blended with diesel fuel at high percentages, it can also cause reliability problems for the engine components, as it can cause corrosion and chemically attack some plastic components of seals and coatings [14].…”

Section: Introductionmentioning

confidence: 99%

Injection and Combustion Analysis of Pure Rapeseed Oil Methyl Ester (RME) in a Pump-Line-Nozzle Fuel Injection System

2021

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This work suggests an interpretation to the quantitatively higher formation of NOx in a compression ignition (CI) engine when fueled with pure biodiesel (B100). A comparative study about the use of rapeseed oil methyl ester (RME) and diesel fuel mixtures on injection timing, in-chamber pressure, heat release rate, and NOx emissions were carried out using a diesel engine equipped with a pump-line-nozzle injection system. Such engines are still widely adopted mainly in agriculture, as the fleet of agricultural machinery is particularly old (often over 20 years) and the use of biofuels can reduce the environmental footprint of the sector. This work aims to supply some general explanations and figures useful to interpret the phenomena occurring within the fuel line and in the combustion process when using biodiesel, as well as in engines with different construction characteristics and fueling systems. Given the contradictory results available in the literature, the so-called “biodiesel NOx effect” cannot be explained solely by the different physical properties of biodiesel (in particular, a higher bulk modulus). Experimental results show that, with the same pump settings, the start of injection with the RME is slightly advanced while the injection pressure values remain almost the same. With the RME, the pressure in the injection line increases faster due to its greater bulk modulus but the pressure rise starts from a lower residual pressure. The start of combustion takes place earlier, the heat release during the premixed phase is steeper, and a higher peak is reached. The NOx emissions with the RME are at least 9% higher when compared to mineral diesel fuel. The greater amount of the RME injected per cycle compensates for its minor lower heating value, and the brake torque at full load is similar to the two analyzed fuels. Finally, a variation of the pump line timing is evaluated in order to assess the effect of the delay and the advance of the injection on the performance of the engine and on the emissions. A viable and simple solution in the variation of the injection strategy is suggested to counterbalance the biodiesel NOx effect.

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The kinematic viscosity of conventional and bio-based fuel blends as a key parameter to indirectly estimate the performance of compression-ignition engines for agricultural purposes

Cited by 10 publications

References 48 publications

Low carbon transportation fuels: deployment pathways, opportunities and challenges

Low carbon transportation fuels: deployment pathways, opportunities and challenges

Recent Advances in Technologies, Methods, and Economic Analysis for Sustainable Development of Energy, Water, and Environment Systems

Injection and Combustion Analysis of Pure Rapeseed Oil Methyl Ester (RME) in a Pump-Line-Nozzle Fuel Injection System

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