EFFECTS OF ETHANOL BLENDS ON GASOLINE ENGINE PERFORMANCE AND EXHAUST EMISSIONS

2015 ◽  
Vol 76 (11) ◽  
Author(s):  
Nik Rosli Abdullah ◽  
M.S.M. Zaharin ◽  
A.M.I. Mamat ◽  
M.R.M. Nawi ◽  
Hazim Sharudin
Keyword(s):  
Gasoline Engine ◽  
Engine Performance ◽  
Alternative Fuel ◽  
Exhaust Emissions ◽  
Constant Load ◽  
Combustion Efficiency ◽  
Blended Fuel ◽  
Ethanol Blends ◽  
Smoke Opacity ◽  
Better Than

Automotive sector is one of the major contributors to air pollution and global warming due to the carbon residue and smoke opacity emission. Today, the trend of decreasing sources of petroleum fuel has led to innovation of other resources such as alternative fuel. Alternative fuel can be produced from biomass such as alcohol in which it is produced by fermentation of sugar, cane and corn. This experiment was conducted to investigate the effects of ethanol on gasoline engine performance and exhaust emissions. A four-stroke, single cylinder engine was tested by different range of ethanol volume percentages i.e. 10% (E10), 20% (E20) and 30% (E30) blended with fossil gasoline. The experiment was carried out at variations of engine speed and constant load. The engine speeds used for a constant load at 2 Nm were 2000rpm, 2500rpm and 3000rpm. From the results obtained, it shows that the brake specific fuel consumption for the blended fuel is better than gasoline fuel. Combustion efficiency of gasoline engine has improved with the use of ethanol-gasoline blends. Exhaust emissions such as CO and smoke opacity are decreased due to the presence of oxygenated properties of ethanol in blended fuel. However, emissions of CO2 are increased due to the high combustion temperature. In overall, the E20 shows the best results for all measured parameters at all engine test conditions.

Gasoline and Synthetic Fuel from Plastic Waste

2016 ◽  
Vol 6 (2) ◽  
pp. 41-50
Author(s):  
Apip Amrullah
Keyword(s):  
Gasoline Engine ◽  
Engine Performance ◽  
Fuel Mixture ◽  
Alternative Fuel ◽  
Exhaust Emissions ◽  
Motor Vehicles ◽  
Synthetic Fuel ◽  
Motor Gasoline ◽  
Petroleum Fuels ◽  
Analysis Of Performance

Currently the use of motor gasoline from year to year increase. In 2010 the number of vehicles in Indonesia about 26,706,705 vehicles, in 2011 amounted to 30,769,093 vehicles and 2012 amounted to 38,156,278 vehicles. This resulted in the consumption of petroleum fuels and exhaust emissions in motor vehicles is increasing. To overcome these problems, conducted research on synthetic fuel which is one of the alternative fuel sources. This research was conducted at gasoline engine. Variations in fuel mixture gasoline and synthetic fuel. This research will be able to generate and determine the effect of fuel mixture gasoline-synthetic fuel on levels of exhaust emissions, to determine the effect of fuel mixture gasoline-synthetic fuel for engine performance. Based on the analysis of performance and exhaust emissions test on a gasoline engine, for most engine performance is good and efficient set at first to mix synthetic fuel.

scholarly journals Effect Methanol, Ethanol, Butanol on the Emissions Characteristics of Gasoline Engine

2021 ◽  
Vol 4 (2) ◽  
pp. 62-67
Author(s):  
Syarifudin Syarifudin ◽  
Firman Lukman Sanjaya ◽  
Faqih Fatkhurrozak ◽  
M. Khumaidi Usman ◽  
Yohanes Sibagariang ◽  
...  
Keyword(s):  
Fossil Fuels ◽  
Engine Speed ◽  
Gasoline Engine ◽  
Fuel Mixture ◽  
Exhaust Emissions ◽  
Blended Fuel ◽  
Alcohol Fuels ◽  
Hc Emissions ◽  
Motorized Vehicles ◽  
Better Than

The increasing volume of motorized vehicles leads to an increase in dependence on fossil fuels and an increase in air pollution. The problem can be reduced by utilizing renewable alcohol fuels such as methanol, ethanol, and butanol. The high number of octane and oxygen content is the main reason. Therefore, this study aims to observe the exhaust emissions of the 160 cc gasoline engine with a mixture of methanol, ethanol, and butanol. The percentage of alcohol used is 0 % to 30 % by volume. The test was carried out in 2000, 3000, and 4000 rpm. The results of the study explained that the use of methanol, ethanol, butanol in the fuel mixture was proven to reduce exhaust emissions. CO and HC emissions decreased as the percentage of alcohol in the fuel increased. The highest reduction in CO and HC emission in methanol blended fuel was 30 %, 94.55 % and 82.71 %, respectively. Meanwhile, CO2 emissions increased by 34.88 % at 2000 rpm engine speed. Based on this test, the addition of methanol to fuel can reduce exhaust emissions better than ethanol and butanol.

scholarly journals A Comparison of Ethanol, Methanol, and Butanol Blending with Gasoline and Its Effect on Engine Performance and Emissions Using Engine Simulation

Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1322
Author(s):  
Simeon Iliev
Keyword(s):  
Alternative Fuels ◽  
Fossil Fuels ◽  
Gasoline Engine ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
Engine Simulation ◽  
Engine Model ◽  
Fuel Blends ◽  
Performance And Emissions ◽  
Blended Fuels

Air pollution, especially in large cities around the world, is associated with serious problems both with people’s health and the environment. Over the past few years, there has been a particularly intensive demand for alternatives to fossil fuels, because when they are burned, substances that pollute the environment are released. In addition to the smoke from fuels burned for heating and harmful emissions that industrial installations release, the exhaust emissions of vehicles create a large share of the fossil fuel pollution. Alternative fuels, known as non-conventional and advanced fuels, are derived from resources other than fossil fuels. Because alcoholic fuels have several physical and propellant properties similar to those of gasoline, they can be considered as one of the alternative fuels. Alcoholic fuels or alcohol-blended fuels may be used in gasoline engines to reduce exhaust emissions. This study aimed to develop a gasoline engine model to predict the influence of different types of alcohol-blended fuels on performance and emissions. For the purpose of this study, the AVL Boost software was used to analyse characteristics of the gasoline engine when operating with different mixtures of ethanol, methanol, butanol, and gasoline (by volume). Results obtained from different fuel blends showed that when alcohol blends were used, brake power decreased and the brake specific fuel consumption increased compared to when using gasoline, and CO and HC concentrations decreased as the fuel blends percentage increased.

scholarly journals Experimental Comparative Study on Performance and Emissions of E85 Adopting Different Injection Approaches in a Turbocharged PFI SI Engine

Energies ◽  
2019 ◽  
Vol 12 (8) ◽  
pp. 1555 ◽  
Author(s):  
Cinzia Tornatore ◽  
Luca Marchitto ◽  
Maria Antonietta Costagliola ◽  
Gerardo Valentino
Keyword(s):  
Fuel Injection ◽  
Reference Conditions ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
Intake Manifold ◽  
Si Engine ◽  
Spark Timing ◽  
Performance And Emissions ◽  
Ethanol Blends ◽  
Cylinder Port

This study examines the effects of ethanol and gasoline injection mode on the combustion performance and exhaust emissions of a twin cylinder port fuel injection (PFI) spark ignition (SI) engine. Generally, when using gasoline–ethanol blends, alcohol and gasoline are externally mixed with a specified blending ratio. In this activity, ethanol and gasoline were supplied into the intake manifold into two different ways: through two separated low pressure fuel injection systems (Dual-Fuel, DF) and in a blend (mix). The ratio between ethanol and gasoline was fixed at 0.85 by volume (E85). The initial reference conditions were set running the engine with full gasoline at the knock limited spark advance boundary, according to the standard engine calibration. Then E85 was injected and a spark timing sweep was carried out at rich, stoichiometric, and lean conditions. Engine performance and gaseous and particle exhaust emissions were measured. Adding ethanol could remove over-fueling with an increase in thermal efficiency without engine load penalties. Both ethanol and charge leaning resulted in a lowering of CO, HC, and PN emissions. DF injection promoted a faster evaporation of gasoline than in blend, shortening the combustion duration with a slight increase in THC and PN emissions compared to the mix mode.

Experimental and Theoretical Study of Injection Timing on Performance and Exhaust Emissions in a Port-Injected Gasoline Engine

2006 ◽  
Author(s):  
E. Movahednejad ◽  
F. Ommi ◽  
M. Hosseinalipour ◽  
O. Samimi
Keyword(s):  
Gasoline Engine ◽  
Fuel Injection ◽  
Engine Performance ◽  
Fuel Mixture ◽  
Exhaust Emissions ◽  
Operating Conditions ◽  
Exhaust Emission ◽  
Injection Timing ◽  
Intake Port ◽  
One Dimensional

For spark ignition engines, the fuel-air mixture preparation process is known to have a significant influence on engine performance and exhaust emissions. In this paper, an experimental study is made to characterize the spray characteristics of an injector with multi-disc nozzle used in the engine. The distributions of the droplet size and velocity and volume flux were characterized by a PDA system. Also a model of a 4 cylinder multi-point fuel injection engine was prepared using a fluid dynamics code. By this code one-dimensional, unsteady, multiphase flow in the intake port has been modeled to study the mixture formation process in the intake port. Also, one-dimensional air flow and wall fuel film flow and a two-dimensional fuel droplet flow have been modeled, including the effects of in-cylinder mixture back flows into the port. The accuracy of model was verified using experimental results of the engine testing showing good agreement between the model and the real engine. As a result, predictions are obtained that provide a detailed picture of the air-fuel mixture properties along the intake port. A comparison was made on engine performance and exhaust emission in different fuel injection timing for 2600 rpm and different loads. According to the present investigation, optimum injection timing for different engine operating conditions was found.

scholarly journals Performance of Diesel Engine using Bio-Fuel From Sesame Oil

2019 ◽  
Vol 8 (10) ◽  
pp. 1554-1558 ◽  
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Fossil Fuels ◽  
Industrial Revolution ◽  
Engine Performance ◽  
High Standard ◽  
Alternative Fuel ◽  
Exhaust Emissions ◽  
High Viscosity ◽  
Sesame Oil

Energy has become a crucial factor for humanity to continue the economic growth and maintain high standard of living especially after industrial revolution. “Fossil fuels are still the main source of energy. But the endless consumption of fossil fuels will bring the reserve to an end in near future. As a result fuel prices are soaring because of diminishing supply than demand. So researchers world over are in constant search of alternate fuels in the last three to four years, aimed at reducing CO2 emissions and global dependency on fossil fuels. The use of vegetable oils as a fuel in diesel engine causes some problems due to their high viscosity compared with conventional diesel fuel. Various techniques and methods are used to solve the problems resulting from high viscosity. One of these techniques is blending of fuel. In this study, a mix of 5%, 10%,15%, 20%, 25% sesame oil and diesel fuel was used as alternative fuel in a direct injection diesel engine. Diesel engine performance and exhaust emissions were investigated and compared with the diesel fuel in a diesel engine. The experimental results show that the engine power and torque of the mixture of sesame oil diesel fuel are close to the values obtained from diesel fuel and the amount of exhaust emissions are lower than those of diesel fuel. Hence it is seen that mix of sesame oil 20% and 80% diesel fuel can be used as an alternative fuel successfully in a diesel engine without any modification and also it is an environmental friendly” fuel in terms of emission parameters.

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