Fuel Blends in Compression Ignition Engines

2003 ◽  
Author(s):  
Khaled Asfar ◽  
Thaer Al-Rabadi
Keyword(s):  
Compression Ignition ◽  
Fuel Blends ◽  
Compression Ignition Engines

The Influence of Butanol Use on the Diesel Engine’s Performance

2016 ◽  
Vol 822 ◽  
pp. 183-189
Author(s):  
Alexandru Dobre ◽  
Constantin Pană ◽  
Nikolaos Cristian Nuțu ◽  
Niculae Negurescu ◽  
Alexandru Cernat
Keyword(s):  
Diesel Engine ◽  
Numerical Modelling ◽  
Diesel Fuel ◽  
Engine Speed ◽  
Butyl Alcohol ◽  
Compression Ignition ◽  
Primary Alcohols ◽  
Maximum Torque ◽  
Fuel Blends ◽  
Compression Ignition Engines

Alcohols begin to show a real interest for their use as fuel at compression ignition engines due to require reducing the pollutants emissions, especially NOx emission. Among the primary alcohols, butyl alcohol (butanol) is considered to be of great perspective in its use as fuel in diesel engines due to its properties close to those of diesel fuel. It is miscible with the diesel fuel and the achieved blend is stable. In paper are presented some aspects regarding the diesel engine’s fuelling with butanol and diesel fuel blends using the experimental research and numerical modelling. The use of the butanol as a fuel for diesel engine has led to the reducing NOx emissions with about 25% and the Brake Specific Energetic Consumption (BSEC) with about 5% at the full load and the maximum torque engine speed.

scholarly journals Influence of Short Carbon-Chain Alcohol (Ethanol and 1-Propanol)/Diesel Fuel Blends over Diesel Engine Emissions

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1309
Author(s):  
María D. Redel-Macías ◽  
David E. Leiva-Candia ◽  
José A. Soriano ◽  
José M. Herreros ◽  
Antonio J. Cubero-Atienza ◽  
...  
Keyword(s):  
Diesel Fuel ◽  
Engine Performance ◽  
Sound Quality ◽  
Exhaust Emissions ◽  
Carbon Chain ◽  
Compression Ignition ◽  
Fuel Blends ◽  
Compression Ignition Engines ◽  
Alcohol Fuels ◽  
Short Carbon

Oxygenated fuels, in this case short carbon-chain alcohols, have been investigated as alternative fuels to power compression ignition engines. A major advantage of short-chain alcohols is that they can be produced from renewable resources, i.e., cultivated commodities or biomass-based biorefineries. However, before entering the market, the effects of short-chain alcohols on engine performance, exhaust emissions, noise and sound quality need to be understood. This work sheds light on the relationship between the physicochemical properties of the alcohol/diesel fuel blends (ethanol and 1-propanol) on engine performance, exhaust emissions and, for the first time, on noise and sound quality. It has been demonstrated that when the content of alcohol in blends increased, soot and soluble organic material emissions drastically decreased, mainly due to the increase of oxygen content in the fuel. Reduction in soot emissions combined with higher thermodynamic efficiency of alcohol fuels, with respect to diesel fuel, enable their utilization on compression ignition engines. There is also an improvement in the soot-NOx trade off, leading to large reductions on soot with a small effect on NOx emissions. The oxygen content within the fuel reduces CO and THC emissions at extra-urban driving operation conditions. However, hydrocarbons and CO emissions increased at urban driving conditions, due to the high heat of vaporization of the alcohol fuels which reduces cylinder temperature worsening fuel atomization, vaporization and mixing with air being more significant at lower cylinder temperature conditions (low engine loads and speeds). Similarly, the higher the presence of alcohol in the blend, the higher the noise emitted by the engine due to their low tendency to auto-ignition. The optimization of alcohol quantity and the calibration of engine control parameters (e.g., injection settings) which is out of the scope of this work, will be required to overcome noise emission penalty. Furthermore, under similar alcohol content in the blend (10% v/v), the use of propanol is preferred over ethanol, as it exhibits lower exhaust emissions and better sound quality than ethanol.

An Experimental Investigation of Diesel Engine Fuelled with MgO Nano Additive Biodiesel - Diesel Blends

2019 ◽  
Vol 1 (2) ◽  
pp. 28-34
Author(s):  
Vijayakumar C ◽  
Murugesan A ◽  
Subramaniam D ◽  
Panneerselvam N
Keyword(s):  
Experimental Investigation ◽  
Diesel Engine ◽  
Calorific Value ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Fuel Blends ◽  
Compression Ignition Engines ◽  
Performance And Emissions ◽  
Nano Additives ◽  
Blended Fuels

In this experimental investigation compacts the performance and emissions of compression ignition engines fuelled with MgO nano additive, maducaindica bio diesel blends were examined. Based upon the previous literatures only 20% mahuca methyl ester fuel blends without nano additives is suitable for compression ignition engine without affecting engine efficiency and its characteristics. In this paper magnesium oxide nano additives are added into the 40% Mahucaindica biodiesel- diesel blends at the rate of 50ppm for developing the test fuels. In this nano additives improve the properties of diesel fuel like viscosity, calorific value and decreased the flash point and fire point. Then compared the performance and emissions differences of all blended fuels used as a fuel in a diesel engine. The observation of results, 40MgO + 50ppm blended fuels brake thermal efficiency is improved then CO, HC, CO2and smoke decreased compared to other fuel blends. The results are taken into account, a blend of 40MgO+ Mgo50ppm is the best blend ratio compared than other blends with nano additives.

METHODOLOGIES FOR MEASURING SPECIFIC CONSUMPTION FUE IN COMPRESSION IGNITION ENGINES

2018 ◽  
Author(s):  
luany braga ◽  
ANTONILSON CONCEIÇÃO ◽  
Hendrick Zarate Rocha ◽  
Danielle R S Guerra ◽  
Manoel Nogueira
Keyword(s):  
Specific Consumption ◽  
Compression Ignition ◽  
Compression Ignition Engines
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