scholarly journals Diethyl Ether as an Oxygenated Additive for Fossil Diesel/Vegetable Oil Blends: Evaluation of Performance and Emission Quality of Triple Blends on a Diesel Engine

Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1542 ◽  
Author(s):  
Laura Aguado-Deblas ◽  
Jesús Hidalgo-Carrillo ◽  
Felipa M. Bautista ◽  
Diego Luna ◽  
Carlos Luna ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Rheological Properties ◽  
Vegetable Oil ◽  
Diethyl Ether ◽  
Vegetable Oils ◽  
Flow Properties ◽  
High Oxygen Content ◽  
Performance And Emission ◽  
Cold Flow ◽  
Cold Flow Properties

The aim of this work is to analyze the effect of using diethyl ether (DEE) as an oxygenated additive of straight vegetable oils (SVOs) in triple blends with fossil diesel, to be used in current compression ignition (C.I.) engines, in order to implement the current process of replacing fossil fuels with others of a renewable nature. The use of DEE is considered taking into account the favorable properties for blending with SVO and fossil diesel, such as its very low kinematic viscosity, high oxygen content, low autoignition temperature, broad flammability limits (it works as a cold start aid for engines), and very low values of cloud and pour point. Therefore, DEE can be used as a solvent of vegetable oils to reduce the viscosity of the blends and to improve cold flow properties. Besides, DEE is considered renewable, since it can be easily obtained from bioethanol, which is produced from biomass through a dehydration process. The vegetable oils evaluated in the mixtures with DEE were castor oil, which is inedible, and sunflower oil, used as a standard reference for waste cooking oil. In order to meet European petrodiesel standard EN 590, a study of the more relevant rheological properties of biofuels obtained from the DEE/vegetable oil double blends has been performed. The incorporation of fossil diesel to these double blends gives rise to diesel/DEE/vegetable oil triple blends, which exhibited suitable rheological properties to be able to operate in conventional diesel engines. These blends have been tested in a conventional diesel engine, operating as an electricity generator. The efficiency, consumption and smoke emissions in the engine have been measured. The results reveal that a substitution of fossil diesel up to 40% by volume can be achieved, independently of the SVO employed. Moreover, a significant reduction in the emission levels of pollutants and better cold flow properties has been also obtained with all blends tested.

scholarly journals Biofuels from Diethyl Carbonate and Vegetable Oils for Use in Triple Blends with Diesel Fuel: Effect on Performance and Smoke Emissions of a Diesel Engine

Energies ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 6584
Author(s):  
Laura Aguado-Deblas ◽  
Jesús Hidalgo-Carrillo ◽  
Felipa M. Bautista ◽  
Carlos Luna ◽  
Juan Calero ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Vegetable Oils ◽  
Kinematic Viscosity ◽  
Cetane Number ◽  
Diethyl Carbonate ◽  
Flow Properties ◽  
Engine Operation ◽  
High Oxygen Content ◽  
Cold Flow ◽  
Cold Flow Properties

The main objective of this work is to contribute to a gradual replacement process of fossil diesel (D) with biofuels composed by diethyl carbonate (DEC) and either sunflower or castor oil, as straight vegetable oils (SVOs). DEC is a very interesting candidate as an oxygenated additive not only because of its low price and renewable nature, but also its favorable fuel properties, such as very low kinematic viscosity, high cetane number, high oxygen content, rich cold flow properties and good miscibility with fossil diesel and vegetable oils. In this work, the more suitable DEC/SVO biofuels are chosen based on kinematic viscosity, according to the European normative. Additionally, the most relevant physical–chemical properties of (bio)fuels such as density, calorific value, cloud point, pour point and cetane number are determined. The influence of DEC on engine performance and exhaust emissions is analyzed by fueling a conventional Diesel engine with the different D/DEC/SVO triple and DEC/SVO double mixtures. The tests results are also compared with commercial diesel. From the results, it is concluded that Diesel engine fueled with the blends studied exhibits an excellent performance in terms of power output, very similar to diesel. Additionally, the use of these blends can remarkably decrease smoke emissions down to 98%, with respect to fossil diesel. The addition of DEC shows a significant improvement in cold flow properties of fuel mixtures in the exchange of a slightly higher brake specific fuel consumption (BSFC) than diesel. Interestingly, the pure biofuels composed by DEC and SVO allow for a suitable engine operation and achieve the lowest emissions, which means these blends can be successfully employed in current engines without adding fossil diesel, i.e., their use entail a 100% renewability.

Performance and Emission Evaluation of Low Heat Rejection Direct Injection Diesel Engine Fueled by Diesel–Turpentine Oil Blends

2010 ◽  
Author(s):  
K. Anandavelu ◽  
N. Alagumurthi ◽  
C. G. Saravanan
Keyword(s):  
Diesel Engine ◽  
Vegetable Oil ◽  
Vegetable Oils ◽  
Diesel Fuel ◽  
Direct Injection ◽  
High Energy ◽  
Promising Alternative ◽  
Heat Rejection ◽  
Performance And Emission ◽  
Direct Injection Diesel Engine

Light Vegetable oils are a promising alternative among the different diesel fuel alternatives. Using Light Vegetable oils in diesel engine is not a new idea. The Vegetable oils have high energy content. However, the high viscosity, poor volatility and cold flow characteristics of vegetable oils can cause some problems such as severe engine deposits, piston ring sticking and thickening of lubrication oil due to long-term use in diesel engines. Diesel fueled engine have the disadvantage of producing Smoke, Particulate Matter and Nitrogen Oxides and are now subjected to increasingly severe legislation of Emission norms. The required levels are difficult to achieve through engine design alone. Even with high-grade fuels, catalytic systems are being extensively investigated to reduce the diesel engine emission. But there are still difficulties in operation of these. This leads to replacement of diesel fuel with renewable fuels has been set target worldwide to reduce the diesel exhaust pollution. The energy of the light vegetable oil can be released more efficiently with the concept of low heat rejection (LHR) engine. The aim of the study is to apply LHR engine for improving the engine performance and reducing the emission when light vegetable oil (turpentine oil) is used as an alternate fuel. The work was carried out in two stages. In first Stage, the turpentine oil (20, 40, 60, 80 & 100, v/v) with diesel blends used in direct injection diesel engine and to identify best blend with respect to performance and emission. In second Stage, the work has been carried out by the converting direct injection diesel engine in to a LHR engine and the effects of different blends of turpentine oil (20, 40, 60, 80 & 100, v/v) with diesel fuel used in LHR engine and its performance, emission and combustion characteristics have been investigated experimentally. From the experimental investigation, the combination of LHR engine with blended fuels shows the better performance when compared to diesel engine. The smoke density decreases for the diesel engine (without LHR) whereas with the effect of LHR, Oxides of Nitrogen will be reduced and heat release rate also reduces.

Influence of blending vegetable oil methyl esters on biodiesel fuel properties: Oxidative stability and cold flow properties

Energy ◽  
2014 ◽  
Vol 65 ◽  
pp. 109-115 ◽  
Author(s):  
Marta Serrano ◽  
Rubén Oliveros ◽  
Marcos Sánchez ◽  
Andrea Moraschini ◽  
Mercedes Martínez ◽  
...  
Keyword(s):  
Oxidative Stability ◽  
Vegetable Oil ◽  
Methyl Esters ◽  
Fuel Properties ◽  
Biodiesel Fuel ◽  
Flow Properties ◽  
Cold Flow ◽  
Cold Flow Properties

Acetone and Diethyl ether: Improve cold flow properties of Dairy Washed Milkscum biodiesel

2019 ◽  
Vol 130 ◽  
pp. 446-451 ◽  
Author(s):  
H.V. Srikanth ◽  
J. Venkatesh ◽  
Sharanappa Godiganur ◽  
Bhaskar Manne
Keyword(s):  
Diethyl Ether ◽  
Flow Properties ◽  
Cold Flow ◽  
Cold Flow Properties

scholarly journals Study on Bio-Diesel as Alternate Fuel Used in I.C. Engines

2020 ◽  
pp. 1-7
Keyword(s):  
Vegetable Oils ◽  
Diesel Engines ◽  
Environmental Benefit ◽  
Flow Properties ◽  
Cold Flow ◽  
Renewable Biomass ◽  
Cold Flow Properties ◽  
Alternate Fuel ◽  
Biomass Resources ◽  
Petroleum Fuels

One of the major incentives for expanding the production and use of bio-fuels worldwide is the potential environmental benefit that can be obtained from replacing petroleum fuels with fuels derived from renewable biomass resources. The use of vegetable oil in diesel engines is one of the available alternatives, but its use in existing vehicles usually requires modification of engine or fuel system components. The increased viscosity, low volatility, and poor cold flow properties of vegetable oils lead to severe engine deposits, injector coking, and piston ring sticking. The paper presents a literature review on vegetable oils as alternative bio-fuel for diesel engines.

scholarly journals Effect of Pour Point Depressants Combined with Dispersants on the Cold Flow Properties of Biodiesel‐Diesel Blends

2021 ◽  
Vol 98 (2) ◽  
pp. 163-172
Author(s):  
Baoting Su ◽  
Lulu Wang ◽  
Yuan Xue ◽  
Jincan Yan ◽  
Zhenbiao Dong ◽  
...  
Keyword(s):  
Pour Point ◽  
Flow Properties ◽  
Cold Flow ◽  
Cold Flow Properties ◽  
Pour Point Depressants
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