scholarly journals Sunflower Methyl Ester as an Engine Fuel: Performance Evaluation and Emissions Analysis

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
Bjorn S. Santos ◽  
Sergio C. Capareda ◽  
Jewel A. Capunitan
Keyword(s):  
Methyl Ester ◽  
Diesel Engines ◽  
Power Loss ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
Engine Fuel ◽  
Brake Specific Fuel Consumption ◽  
Fuel Blends ◽  
Soybean Methyl Ester ◽  
Total Hydrocarbons

Biodiesel from sunflower oil offers a potential as an alternative to petroleum-based diesel fuel and must be evaluated in terms of the resulting engine performance and exhaust emissions. Two diesel engines rated at 14.2 kW (small) and 60 kW (large) were operated on pure sunflower methyl ester (SFME) and its blends with a reference diesel (REFDIESEL). Results showed that less power and torque were delivered by both the small and large engines when ran on pure SFME than on REFDIESEL, while brake-specific fuel consumption (BSFC) was found to be higher in pure SFME. Blends of SFME with REFDIESEL (B5 and B20) showed negligible power loss and similar BSFC with the REFDIESEL. Higher concentrations of nitrogen oxides (), carbon dioxide (CO2), and total hydrocarbons (THC) in the exhaust emissions were observed for both pure SFME and SFME-REFDIESEL fuel blends. Comparison with soybean methyl ester indicates similar engine performance. Thus, blends of SFME with diesel may be used as a supplemental fuel for steady-state nonroad diesel engines to take advantage of the lubricity of biodiesel as well as contributing to the goal of lowering the dependence to petroleum diesel.

Evaluating the Influence of Exhaust Back Pressure on Performance and Exhaust Emissions Characteristics of a Multicylinder, Turbocharged, and Aftercooled Diesel Engine

2015 ◽  
Vol 137 (3) ◽  
Author(s):  
Mayank Mittal ◽  
Ron Donahue ◽  
Peter Winnie
Keyword(s):  
Diesel Engine ◽  
Pressure Sensors ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
Back Pressure ◽  
Operating Conditions ◽  
Brake Specific Fuel Consumption ◽  
Significant Difference ◽  
Performance Results ◽  
Total Hydrocarbons

An experimental study was conducted to quantify the effects of exhaust back pressure (EBP) on performance and exhaust emissions characteristics of a diesel engine for generator application. The electromechanical system was composed of a commercially available six-cylinder, turbocharged, and aftercooled diesel engine, coupled with a generator rated at 500 kilowatt electrical (kWe) at full load. Experiments were conducted at different operating conditions for high and low EBPs. Exhaust emissions of nitrogen oxides (NOx), soot, particulate matter (PM), carbon monoxide (CO), and total hydrocarbons (HC) were measured. In addition, thermocouples and pressure sensors were provided at various locations to evaluate the engine performance. Results showed that the brake specific fuel consumption (BSFC) was increased at light loads for high EBP, but no significant difference was observed in BSFC at high loads. It was found that NOx emission was reduced at all operating loads, but soot and PM were increased with the increase in EBP. HC emission was relatively insensitive with increment of EBP.

scholarly journals Investigation on Physicochemical Properties of Wastewater Grown Microalgae Methyl Ester and its Effects on CI Engine

2020 ◽  
Vol 24 (1) ◽  
pp. 72-87 ◽  
Author(s):  
Sara Tayari ◽  
Reza Abedi ◽  
Ali Abedi
Keyword(s):  
Methyl Ester ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
Biodiesel Production ◽  
Emissions Reduction ◽  
Test Results ◽  
Main Fatty Acid ◽  
Ci Engine ◽  
Hc Emissions ◽  
A Minor

AbstractMicroalgae have been mentioned as a promising feedstock for biodiesel production. In this study, microalgae Chlorella vulgaris (MCV) was cultivated in a bioreactor with wastewater. After biodiesel production from MCV oil via transesterification reaction, chemical and physical properties of MCV methyl ester were evaluated with regular diesel and ASTM standard. Besides, engine performance and exhaust emissions of CI engine fuelled with the blends of diesel-biodiesel were measured. The GC-MS analysis showed that oleic and linoleic acids were the main fatty acid compounds in the MCV methyl ester. Engine test results revealed that the use of biodiesel had led to a major decrease in CO and HC emissions and a modest reduction in CO2 emissions, whereas there was a minor increase in NOx emissions. Furthermore, there was a slight decrease in the engine power and torque while a modest increase in brake specific fuel consumption which are acceptable due to exhaust emissions reduction. The experimental results illustrate considerable capabilities of applied MVC biodiesel as an alternative fuel in diesel engines to diminish the emissions.

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 Stability and Emission Characteristics of Diesel-Ethanol-Coconut Methyl Ester Blends for the Diesel Engines

2015 ◽  
Vol 14 (2) ◽  
pp. 1
Author(s):  
Tanti Ardiyati ◽  
Nathaniel P. Dugos ◽  
Susan A. Roces ◽  
Masaaki Suzuki ◽  
Kusnanto Kusnanto
Keyword(s):  
Methyl Ester ◽  
Diesel Engines ◽  
Emission Characteristics ◽  
Test Results ◽  
Fuel Blends ◽  
Fuel Consumption Rate ◽  
Efficient Combustion ◽  
Smoke Opacity ◽  
The Stability ◽  
Blended Fuels

The stability and emission characteristics of diesel-ethanol-coconut methyl ester (CME) blends were studied to determine the most suitable fuel blends to be applied in diesel engines. This is done in order to assess the potential of the blends as a substitute for commercially available diesel fuel used in diesel engine. The stability results of the blends using 100% and 99.5% ethanol purity showed that the fuel blends containing ethanol up to 10% and CME of 5% and greater exhibited high mutual solubility at any temperature range and were resistant to microbial growths after 3 months storage. Engine operations at low speed especially at idle-no load and using a bigger size engine lead to a minimum ignition delay and result in lower fuel consumption rate. The emission test results with the new- blended fuels showed a reduction in CO2 and increasing percentage by volume of CO2 compared to commercially available diesel. The blends could deliver an efficient combustion and could run efficiently since production of the CO2 gases is higher than that of CO. The blends of 80% diesel, 5% ethanol, 10% CME; and 80% diesel, 10% ethanol, 10% CME could reduce the smoke opacity compared to commercially available diesel.

scholarly journals Biodiesel Extraction from Chicken Fat and Its Effect on the Performance and Emission Characteristics of the Diesel Engine

2021 ◽  
Vol 20 (4) ◽  
Author(s):  
V. Hariram ◽  
J. Godwin John ◽  
Subramanyeswara Rao ◽  
S. K. Baji Babavali ◽  
S. Muni Lokesh ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Methyl Ester ◽  
Experimental Investigations ◽  
Emission Characteristics ◽  
Brake Specific Fuel Consumption ◽  
Physiochemical Properties ◽  
Brake Thermal Efficiency ◽  
Performance And Emission ◽  
Chicken Fat ◽  
Fuel Blends

This study focuses on the conversion of chicken fat into chicken fat methyl ester (CFME) and its use in the diesel engine. Baseline fuel i.e., diesel and chicken fat biodiesel are the fuels tested to study their effect on the performance and emission characteristics of diesel engines. To enhance the performance and emission characteristics, ethanol up to 20% is added as an additive to the chicken fat biodiesel. The physiochemical properties revealed that the fuel blends properties are closer to the diesel fuel. The experimental investigations revealed that additive blended biodiesel enhanced the performance by reducing the brake-specific fuel consumption and increasing the brake thermal efficiency. Moreover, the emissions are considerably reduced by the additive blended chicken fat biodiesel. Therefore, chicken fat biodiesel can be considered as a substitute fuel to be used in the diesel engine without any modifications.

Engine performance, exhaust emissions and combustion characteristics of a CI engine fuelled with croton megalocarpus methyl ester with antioxidant

Fuel ◽  
2011 ◽  
Vol 90 (8) ◽  
pp. 2782-2789 ◽  
Author(s):  
Thomas T. Kivevele ◽  
Lukács Kristóf ◽  
Ákos Bereczky ◽  
Makame M. Mbarawa
Keyword(s):  
Methyl Ester ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
Combustion Characteristics ◽  
Ci Engine
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