Characterisation of the Key Fuel Properties of Oxygenated Diethyl Ether-Diesel Blends

2014 ◽  
Vol 612 ◽  
pp. 175-180 ◽  
Author(s):  
K.R. Patil ◽  
S.S. Thipse
Keyword(s):  
Oxygen Content ◽  
Diethyl Ether ◽  
Diesel Fuel ◽  
Cetane Number ◽  
Calorific Value ◽  
Ambient Conditions ◽  
Flammability Limits ◽  
High Oxygen Content ◽  
Significant Difference ◽  
Ci Engines

Diethyl Ether (DEE) is a promising oxygenated renewable bio-base resource fuel for CI engines owing to its high ignition quality. DEE has several favourable properties, including exceptional cetane number, very low self-ignition temperature, high oxygen content, broad flammability limits and reasonable energy density for on-board storage. It is a liquid at ambient conditions, which makes it attractive for fuel handling and fuel infrastructure requirements and hence, it is a compatible fuel for use in CI engine. Diethyl ether is the simplest ether expressed by its chemical formula CH3CH2-O-CH2CH3, consisting of two ethyl groups bonded to a central oxygen atom. It can be mixed in any proportion in diesel fuel as it is completely miscible with diesel fuel. It was observed that density, kinematic viscosity and calorific value of the blends decreases while the oxygen content and cetane number of the blends increases with the concentration of DEE addition. The presence of DEE increases the front end volatility of the blends and decreases boiling point in comparison to baseline diesel fuel. No significant difference was observed in the tail-end volatility of the blends. The blended fuel retains the desirable physical properties of diesel fuel but includes the cleaner burning capability of DEE.

scholarly journals UJI PRESTASI DAN EMISI DIESEL BERBAHAN BAKAR MINYAK NABATI MURNI UNTUK PEMBANGKITAN DAYA DI DAERAH TERPENCIL

Power Plant ◽  
2018 ◽  
Vol 5 (1) ◽  
pp. 18-23
Author(s):  
Redaksi Tim Jurnal
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Specific Energy Consumption ◽  
Cetane Number ◽  
Coconut Oil ◽  
Calorific Value ◽  
Nox Emissions ◽  
Plant Oil ◽  
Significant Difference ◽  
Performance And Emissions

Pure Plant Oil (PPO) such as Pure Coconut Oil (PCO) and Pure Palm Oil (PPaO) could be a solution for electricity problem in remote areas in Indonesia. PCO and PPaO can be used as a fuel for diesel engine to produce electricity. This paper will compare and analyze the performance and emissions of the diesel power plant fueled with diesel fuel, PCO, and PPaO. For performance parameter, brake specific fuel consumption and thermal efficiency of diesel engine by using PPaO and PCO are higher than the diesel fuel, but the brake specific energy consumption are lower than the diesel fuel. That means diesel engine will be more efficient and have lower operational cost by using PPaO and PCO. For the emission parameters, CO2, CO, and CH emissions from PPaO and PCO are higher compared to diesel fuel. That means PPO have higher carbon emission than just using conventional diesel fuel. But, there are highly significant difference of less NOX emissions by using PCO and PPaO compared to the diesel fuel. That means it will be better using PPO because diesel engine has lack of high NOX emissions. These differences of diesel engine performance and emissions by PPaO, PCO, and diesel fuel are caused by the fuel characteristic differences such as cetane number, calorific value, and viscosity.

scholarly journals Effects of Diethyl Ether Introduction in Emissions and Performance of a Diesel Engine Fueled with Biodiesel-Ethanol Blends

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3787 ◽  
Author(s):  
Márcio Carvalho ◽  
Felipe Torres ◽  
Vitor Ferreira ◽  
Júlio Silva ◽  
Jorge Martins ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Oxygen Content ◽  
Diethyl Ether ◽  
Cetane Number ◽  
Exhaust Emission ◽  
Engine Operation ◽  
High Oxygen Content ◽  
Operation Process ◽  
Ethanol Blends ◽  
And Performance

Biofuels provide high oxygen content for combustion and do modify properties that influence the engine operation process such as viscosity, enthalpy of vaporization, and cetane number. Some requirements of performance, fuel consumption, efficiency, and exhaust emission are necessary for the validation of these biofuels for application in engines. This work studies the effects of the use of diethyl ether (DEE) in biodiesel-ethanol blends in a DI mechanical diesel engine. The blends used in the tests were B80E20 (biodiesel 80%-ethanol 20%) and B76E19DEE5 (biodiesel 76%-ethanol 19%-DEE 5%). Fossil diesel (D100) and biodiesel (B100) were evaluated as reference fuels. The results revealed similar engine efficiencies among tested fuels at all loads. The use of B100 increased CO and NOx and decreased THC compared to D100 at the three loads tested. B80E20 fuel showed an increase in NOx emission in comparison with all fuels tested, which was attributed to higher oxygen content and lower cetane number. THC and CO were also increased for B80E20 compared to B100 and D100. The use of B76E19DEE5 fuel revealed reductions in NOx and CO emissions, while THC emissions increased. The engine efficiency of B76E19DEE5 was also highlighted at intermediate and more elevated engine load conditions.

scholarly journals A Review on Techniques to Improve Performance and Reduce Emissions of Diesel Engine Running With Higher Viscous Fuels (HVFs)

2019 ◽  
Author(s):  
Saiful Bari ◽  
Shekh Nisar Hossain ◽  
Idris Saad
Keyword(s):  
Diesel Fuel ◽  
Internal Combustion Engines ◽  
Engine Performance ◽  
Calorific Value ◽  
Combustion Efficiency ◽  
Fuel Price ◽  
Fuel Blend ◽  
Environmental Friendliness ◽  
Biodiesel Fuels ◽  
Ci Engines

Abstract Due to skyrocketing fuel price and demand, engine manufacturers and researchers have been thriving to find alternative sources of fuel for internal combustion engines. Biodiesel and vegetable-based fuels are prospective substitutes for petro-diesel fuel for compressions ignition (CI) or diesel engines, and favourable over petro-diesel fuel in terms of sustainability and environmental friendliness. It is found from the literatures that higher viscous fuels (HVFs) and biodiesel fuels have substandard engine performance and emissions especially in the case of brake specific fuel consumption (BSFC), torque and NOx emissions compared to those of the engines using petro-diesel. This is mainly due to their higher viscosity and density as well as lower volatility and calorific value and thus, they are termed as higher viscous fuels. Furthermore, the higher viscosity and density of HVFs retard the combustion efficiency since HVFs are less prone to evaporate, diffuse and mix properly with the in-cylinder air. Based on these findings, researchers have put effort into improving the performance of CI engines running with HVFs. Generally, three techniques are very popular by the researchers, namely, blending the HVFs with petro-diesel (known as fuel blend), preheating the HVFs, and altering the injection strategy from the original engine-settings for petro-diesel operation. In this paper, a comprehensive review is presented on these techniques to improve the performance of CI engines run on HVFs.

scholarly journals PENGARUH PENGGUNAAN ENERGI TERBARUKAN BUTANOL TERHADAP PENURUNAN EMISI JELAGA MESIN DIESEL INJEKSI LANGSUNG BERBAHAN BAKAR BIODIESEL CAMPURAN SOLAR DAN JATROPA

Infotekmesin ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 18-22
Author(s):  
Syarifudin Syarifudin ◽  
Syaiful Syaiful
Keyword(s):  
Fuel Consumption ◽  
Diesel Engines ◽  
Driving Forces ◽  
Direct Injection ◽  
Fuel Efficiency ◽  
Cetane Number ◽  
Calorific Value ◽  
Exhaust Emissions ◽  
High Viscosity ◽  
High Oxygen Content

Diesel engines are widely used as driving forces in vehicles and industry due to fuel efficiency and high output power. The wide use of diesel engines triggers an increase in fuel consumption and exhaust emissions that are harmful to health. Jatropha is a renewable fuel as a solution to increase fuel consumption. However, the high viscosity and low calorific value result in reduced performance and increased exhaust emissions. Butanol has a high oxygen content and cetane number and low viscosity compared to diesel and jatropha. Addition of butanol is possible to reduce the decrease in performance and exhaust emissions of diesel engines. this study evaluates the effect of butanol on reducing Isuzu 4JB1 diesel engine direct injection emissions. Percentage of blend used 70/30/0, 65/30/5, 60/30/10, and 55/40/15 based on volume. Tests are carried out at 2500 constant turns with a loading of 25% to 100% using the EGR system. The experimental results showed the presence of butanol caused a decrease in soot emissions produced by diesel engines

scholarly journals Outlook for Direct Use of Sunflower and Castor Oils as Biofuels in Compression Ignition Diesel Engines, Being Part of Diesel/Ethyl Acetate/Straight Vegetable Oil Triple Blends

Energies ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4836
Author(s):  
Laura Aguado-Deblas ◽  
Rafael Estevez ◽  
Jesús Hidalgo-Carrillo ◽  
Felipa M. Bautista ◽  
Carlos Luna ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
Fuel Consumption ◽  
Kinematic Viscosity ◽  
Fossil Fuels ◽  
Cetane Number ◽  
Calorific Value ◽  
Compression Ignition ◽  
High Oxygen Content ◽  
Electric Generator ◽  
Object Of Study

Today, biofuels are indispensable in the implementation of fossil fuels replacement processes. This study evaluates ethyl acetate (EA) as a solvent of two straight vegetable oils (SVOs), castor oil (CO), and sunflower oil (SO), in order to obtain EA/SVO double blends that can be used directly as biofuels, or along with fossil diesel (D), in the current compression-ignition (C.I.) engines. The interest of EA as oxygenated additive lies not only in its low price and renewable character, but also in its very attractive properties such as low kinematic viscosity, reasonable energy density, high oxygen content, and rich cold flow properties. Revelant fuel properties of EA/SVO double and D/EA/SVO triple blends have been object of study including kinematic viscosity, pour point (PP), cloud point (CP), calorific value (CV), and cetane number (CN). The suitability of using these blends as fuels has been tested by running them on a diesel engine electric generator, analyzing their effect on engine power output, fuel consumption, and smoke emissions. Results obtained indicate that the D/EA/SO and D/EA/CO triple blends, composed by up to 24% and 36% EA, respectively, allow a fossil diesel substitution up to 60–80% providing power values very similar to conventional diesel.In addition, in exchange of a slight fuel consumption, a very notable lessening in the emission of pollutants as well as a better behavior at low temperatures, as compared to diesel, are achieved.

scholarly journals Potential Improvement in PM-NOX Trade-Off in a Compression Ignition Engine by n-Octanol Addition and Injection Pressure

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 310
Author(s):  
Qiwei Wang ◽  
Rong Huang ◽  
Jimin Ni ◽  
Qinqing Chen
Keyword(s):  
Oxygen Content ◽  
Alternative Fuels ◽  
Energy Content ◽  
Cetane Number ◽  
High Energy ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Promising Alternative ◽  
Trade Off ◽  
Ci Engines

n-Octanol, as an oxygenated fuel, is considered as one of the most promising alternative fuels, owing to advantages such as its low hygroscopic nature, high cetane number, and high energy content. However, the introduction of n-octanol leads to a higher viscosity and latent heat of evaporation (LHOE), affecting the combustion and emission performances of compression ignition (CI) engines. This study sheds light on the effect of injection pressures (IPs, ranging from 60 to 160 MPa) on the combustion and emission performances of a turbocharged CI engine, in conjunction with n-octanol/diesel blends. According to the proportion of oxygen content, the test fuels contain pure diesel (N0), N2.5 (2.5% oxygen content in the blending fuels), and N5 (5% oxygen content in the blending fuels). The results indicate that the blending fuels have little influence on the in-cylinder pressure, ignition delay (ID), and CA50, but they improve the brake thermal efficiency (BTE). In terms of emissions, with the use of blending fuels, the levels of carbon monoxide (CO), soot, and nitrogen oxides (NOX) decrease, whereas emissions of hydrocarbons (HC) slightly increase. With increasing IP, the ID, brake specific fuel consumption (BSFC), HC, CO, and soot decrease significantly, and the BTE and NOX increase. In addition, the combination of n-octanol and IP improves the trade-off between NOX and soot and reduces the CO emissions.

Effect of advanced biofuels on WLTC emissions of a Euro 6 diesel vehicle with SCR under different climatic conditions

2021 ◽  
pp. 146808742110012
Author(s):  
A Calle-Asensio ◽  
JJ Hernández ◽  
J Rodríguez-Fernández ◽  
M Lapuerta ◽  
A Ramos ◽  
...  
Keyword(s):  
Diesel Fuel ◽  
High Speed ◽  
Particle Number ◽  
Cetane Number ◽  
Climatic Conditions ◽  
Gas Temperature ◽  
Ambient Conditions ◽  
Vehicle Performance ◽  
Advanced Biofuels ◽  
Diesel Vehicle

Hydrotreated vegetable oil (HVO), a glycerol-derived biofuel (blended with diesel fuel at 20% v/v, Mo·bio®) and biodiesel produced through the esterification of residual free fatty acids from the palm oil industry (pure and blended with diesel fuel at 20% v/v), all of them considered as advanced biofuels as defined in the Directive EU/2018/2001, were tested in a Euro 6 diesel vehicle equipped with ammonia-SCR. Tests were carried out in a chassis dyno at warm (24°C) and cold (−7°C) ambient conditions following the Worldwide harmonized Light-duty vehicles Test Cycle (WLTC). The efficiency of the SCR when changing the fuel was also analysed. Regarding vehicle performance, fuel properties were mainly relevant at warm conditions. Because of the lower EGR rate, NOx emissions upstream of the SCR were higher at cold temperature, mainly during the low and the extra-high speed phases of the WLTC. CO and THC emissions were only important at the beginning of the cycle and at −7°C. HVO presented advantages regarding these compounds, while the worse cloud point of biodiesel led to higher emissions. As expected, engine-out NOx emissions were very sensitive to the EGR rate, HVO showing a slightly better behaviour because of its high cetane number. The SCR efficiency was mainly affected by the exhaust gas temperature, although fuel-derived effects were also significant. In fact, a more appropriate NO2/NOx ratio at the catalyst inlet for HVO and a higher hydrocarbon concentration at the low-speed phase for B20 contributed to a lower tail-pipe NOx emissions at −7°C. The oxygen content of biodiesel-based fuels (B100 and B20) led to lower particle number with respect to diesel fuel. Despite its nil aromatic content, the higher EGR rate and the extremely superior autoignition trend of HVO led to higher particle number under high engine load and warm conditions.

scholarly journals Experimental study on the effects of blending PODEn on performance, combustion and emission characteristics of heavy-duty diesel engines meeting China VI emission standard

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yuwei Zhao ◽  
Cong Geng ◽  
Weibo E ◽  
Xiaoquan Li ◽  
Peiyuan Cheng ◽  
...  
Keyword(s):  
Heat Release ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Cetane Number ◽  
Emission Characteristics ◽  
Heavy Duty ◽  
High Oxygen Content ◽  
Emission Standards ◽  
Heavy Duty Diesel

AbstractTo study the influence of diesel fuel blended with polyoxymethylene dimethyl ethers (PODEn), a new alternative fuel with a high oxygen content and large cetane number, on the combustion characteristics, fuel economies, and emission characteristics of heavy-duty diesel engines that meet China VI emission standards, relevant tests were conducted on a supercharged intercooled high-pressure common-rail diesel engine. The PODEn were blended with diesel fuel at three different ratios (volume fractions of 10%, 20%, and 30%). The test results showed that the PODEn could optimize the combustion process of diesel engines that met the China VI emission standards, effectively improve the thermal efficiencies of diesel engines, and reduce the emissions of hydrocarbon (HC), carbon monoxide (CO), and soot. With an increase in the PODEn blending ratio, the peak values of the in-cylinder pressure, average in-cylinder temperature, and instantaneous heat release rate gradually decreased, and each peak progressively moved forward. As the start of combustion gradually moved forward, the combustion duration was shortened by 0.7–2.8°CA, the heat release process became more concentrated, and the effective thermal efficiency was increased by up to 2.57%. The effective fuel consumption gradually increased, yet the equivalent effective fuel consumption gradually decreased, with the largest drop being as high as 4.55%. The nitrogen oxides (NOx) emission increased slightly, and the emissions of HC, CO, and soot gradually decreased. The emissions of CO and soot declined significantly under high-speed and high-load conditions, with the highest reductions reaching 66.2% and 76.3%, respectively.

Energetic properties of peat saturated with petroleum products

2020 ◽  
Vol 13 (2) ◽  
pp. 105-109
Author(s):  
E. S. Dremicheva
Keyword(s):  
Crude Oil ◽  
Diesel Fuel ◽  
Energy Use ◽  
Experimental Studies ◽  
Calorific Value ◽  
Petroleum Products ◽  
Ash Content ◽  
Motor Oil ◽  
Initial Sample

This paper presents a method of sorption using peat for elimination of emergency spills of crude oil and petroleum products and the possibility of energy use of oil-saturated peat. The results of assessment of the sorbent capacity of peat are presented, with waste motor oil and diesel fuel chosen as petroleum products. Natural peat has been found to possess sorption properties in relation to petroleum products. The sorbent capacity of peat can be observed from the first minutes of contact with motor oil and diesel fuel, and significantly depends on their viscosity. For the evaluation of thermal properties of peat saturated with petroleum products, experimental studies have been conducted on determination of moisture and ash content of as-fired fuel. It is shown that adsorbed oil increases the moisture and ash content of peat in comparison with the initial sample. Therefore, when intended for energy use, peat saturated with petroleum products is to be subjected to additional drying. Simulation of net calorific value has been performed based on the calorific values of peat and petroleum products with different ratios of petroleum product content in peat and for a saturated peat sample. The obtained results are compared with those of experiments conducted in a calorimetric bomb and recalculated for net calorific value. A satisfactory discrepancy is obtained, which amounts to about 12%. Options have been considered providing for combustion of saturated peat as fuel (burnt per se and combined with a solid fuel) and processing it to produce liquid, gaseous and solid fuels. Peat can be used to solve environmental problems of elimination of emergency spills of crude oil and petroleum products and as an additional resource in solving the problem of finding affordable energy.

STUDI PENENTUAN KOMPOSISI OPTIMUM CAMPURAN BAHAN BAKAR BIODIESEL–PETRODIESEL

2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Soni S. Wirawan dkk
Keyword(s):  
Carbon Monoxide ◽  
Particulate Matter ◽  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Cetane Number ◽  
Price Policy ◽  
Oxides Of Nitrogen ◽  
Fuel Price ◽  
Biodiesel Blend

Biodiesel is a viable substitute for petroleum-based diesel fuel. Its advantages are improved lubricity, higher cetane number and cleaner emission. Biodiesel and its blends with petroleum-based diesel fuel can be used in diesel engines without any signifi cant modifi cations to the engines. Data from the numerous research reports and test programs showed that as the percent of biodiesel in blends increases, emission of hydrocarbons (HC), carbon monoxide (CO), and particulate matter (PM) all decrease, but the amount of oxides of nitrogen (NOx) and fuel consumption is tend to increase. The most signifi cant hurdle for broader commercialization of biodiesel is its cost. In current fuel price policy in Indonesia (especially fuel for transportation), the higher percent of biodiesel in blend will increase the price of blends fuel. The objective of this study is to assess the optimum blends of biodiesel with petroleum-based diesel fuel from the technically and economically consideration. The study result recommends that 20% biodiesel blend with 80% petroleum-based diesel fuel (B20) is the optimum blend for unmodifi ed diesel engine uses.Keywords: biodiesel, emission, optimum, blend

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