Study on the Effects of Oxygenated Fuels on Diesel Engine Performance

2014 ◽  
Vol 672-674 ◽  
pp. 1580-1583
Author(s):  
Xu Dong Wang ◽  
Chun Hua Xiong ◽  
Gao Jun An ◽  
Hong Yan Shang ◽  
Feng Wang ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Direct Injection ◽  
Engine Performance ◽  
Physicochemical Characteristics ◽  
Diesel Oil ◽  
Power Performance ◽  
Exhaust Gas Emission ◽  
Oxygenated Fuel ◽  
Blend Fuel ◽  
Oxygenated Fuels

The physicochemical characteristics of a new composite oxygenated fuel named oligomeric polyoxymethylene dimethyl ether and DMM10 (the blend of this fuel and conventional diesel oil with 10% in volume) were analyzed. The power performance, fuel economy, combustion characteristics and exhaust gas emission of a four strokes, direct injection, turbocharged and intercooled diesel engine fuelled with DMM10 and diesel fuel were analyzed and compared. The results show that in comparison to original diesel engine, when the engine fuelled with DMM10 blend fuel, the power performance remains unchanged; BSEC decrease slightly, smoke emission decreases obviously and its decrease rate is up to 72%.

Effects of Ethanol-n butanol-diesel Oxygenated Fuel on Performance of Diesel Engine

2013 ◽  
Vol 860-863 ◽  
pp. 1766-1769
Author(s):  
Ming Wei Xiao ◽  
Jin'ge He
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Thermal Efficiency ◽  
Direct Injection ◽  
Brake Specific Fuel Consumption ◽  
Fuel Supply ◽  
Direct Injection Diesel Engine ◽  
Oxygenated Fuel ◽  
Performance And Emissions ◽  
Blend Fuel

The experiments of the economy performance and emissions of diesel engine fueled with ethanol-n butanol-diesel were performed on a dual-cylinder direct injection diesel engine. The results show that without modification on the engine, while the mixed proportion of ethanol getting larger, the equivalent brake specific fuel consumption decreases and effective thermal efficiency increases when the diesel engine work on medium and high loads condition, NOX emissions and smoke decreased obviously. But the smoke increased when the proportion of ethanol is 20%. And the results also indicate that it is beneficial for decreasing the smoke and NOX emissions to reduce suitably fuel supply advance angle when the diesel engine fueled with blend fuel mixed high proportion of ethanol.

scholarly journals Performance and Exhaust Gas Emission of Biodiesel Fuel with Palm Oil Based Additive in Direct Injection Compression Ignition Engine

2019 ◽  
Vol 16 (1) ◽  
pp. 6173-6187
Author(s):  
C. B. How ◽  
N. M. Taib ◽  
M. R. A. Mansor
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Palm Oil ◽  
Direct Injection ◽  
Engine Performance ◽  
Compression Ignition ◽  
Exhaust Gas Emission ◽  
And Performance ◽  
Engine Emission ◽  
Emission And Performance

Blending biodiesel in the diesel would increase the tendency of having a high viscosity fuel. For this reason, the addition of a small amount of additives into the blends may improve the engine performance and lead to better fuel consumption. The purpose of this paper is to experimentally investigate the performance and emissions generated by various mixtures of biodiesel and diesel with palm oil based additive in the compression ignition direct injection diesel engine of Yanmar TF90. Experiments were also conducted to identify the ideal biodiesel, diesel and the additive mixture that produces the optimum engine emission and performance. The experiment was conducted by using mixtures that consisted of 10%, 20% and 30% of biodiesel with and without the additives. From the results of the experiments, PB10 with 0.8 ml additives produced the highest braking power and lowest fuel consumption as compared to the diesel and the rest of the biodiesel blends. The presence of biodiesel and additives were found to not only improve the engine performance, but also led to the reduction of carbon emission. Although all the diesel, biodiesel and additive demonstrated low smoke emission with a complete combustion, a slight increase however, was observed in the NOx emission. In conclusion, PB10 is seen as the most ideal blend for diesel engine in terms of providing the most optimum engine emission and performance.

The Application of Non-Esterified Biodiesel in a Diesel Engine

2011 ◽  
Vol 110-116 ◽  
pp. 38-42
Author(s):  
Youngtaig Oh ◽  
Seung Hun Choi ◽  
Azjargal Janchiv
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Alternative Energy ◽  
Direct Injection ◽  
Specific Energy Consumption ◽  
Energy Resource ◽  
Engine Performance ◽  
Smoke Emission ◽  
Exhaust Gas Emission ◽  
Water Dipole

Nowadays, various environmental regulations are being strengthened because of air pollution caused by exhaust gas emission of the automobiles. Biodiesel has been recognized as an alternative energy resource since it can be used without the modification of existing diesel engines and contains oxygen in itself, so the engine performance didn’t have large differences in comparison with the diesel fuel but remarkably reduces smoke emissions. The main objective of this study is to investigate usability of non-esterified biodiesel as an alternative fuel in a common rail direct injection diesel engine. The non-esterified biodiesel has not generated glycerin in esterificaion process and reduced the 20 percent of cost because it has not used methanol in the production process. Experiments were conducted by using the 5 percentage of biodiesel and 4 percentage of biodiesel with 1 percentage of WDP (water dipole power) in diesel fuel. Based on the experimental analysis the smoke emission of biodiesel was reduced significantly, but power, torque, and brake specific energy consumption was similar in comparison with commercial diesel fuel.

Study on the Effects of Coal Base Fuels on Diesel Engine Performance

2014 ◽  
Vol 1070-1072 ◽  
pp. 1840-1843
Author(s):  
Xu Dong Wang ◽  
Chun Hua Xiong ◽  
Chang Bo Lu ◽  
Feng Wang ◽  
Gang Wang ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Consumption Rate ◽  
Test Bench ◽  
Engine Performance ◽  
Volume Ratio ◽  
Physicochemical Characteristics ◽  
Exhaust Emission ◽  
Engine Test Bench ◽  
Power Performance ◽  
Fuel Consumption Rate

This paper addresses the physicochemical characteristics of petroleum based diesel, coal based diesel and blended diesel (volume ratio of petroleum based diesel and coal based diesel 1:1), the power performance, fuel economy and exhaust emission with the three kinds of fuel were investigated on an engine test bench. The results show that: without any change in the diesel engine, when the engine fueled with coal based diesel power slightly upgraded, fuel consumption rate change little, exhaust smoke decrease obviously compared with using petroleum based diesel, that means coal based diesel is a kind of low-pollution alternative fuel for diesel engine.

scholarly journals THE EFFECT OF DIESEL-BIODIESEL BLENDS ON THE PERFORMANCE AND EXHAUST EMISSIONS OF A DIRECT INJECTION OFF-ROAD DIESEL ENGINE

Transport ◽  
2014 ◽  
Vol 29 (4) ◽  
pp. 440-448 ◽  
Author(s):  
Tomas Mickevičius ◽  
Stasys Slavinskas ◽  
Slawomir Wierzbicki ◽  
Kamil Duda
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Direct Injection ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
Bench Test ◽  
Maximum Pressure ◽  
Cylinder Pressure ◽  
Biodiesel Blends ◽  
Performance And Emission

This paper presents a comparative analysis of the diesel engine performance and emission characteristics, when operating on diesel fuel and various diesel-biodiesel (B10, B20, B40, B60) blends, at various loads and engine speeds. The experimental tests were performed on a four-stroke, four-cylinder, direct injection, naturally aspirated, 60 kW diesel engine D-243. The in-cylinder pressure data was analysed to determine the ignition delay, the Heat Release Rate (HRR), maximum in-cylinder pressure and maximum pressure gradients. The influence of diesel-biodiesel blends on the Brake Specific Fuel Consumption (bsfc) and exhaust emissions was also investigated. The bench test results showed that when the engine running on blends B60 at full engine load and rated speed, the autoignition delay was 13.5% longer, in comparison with mineral diesel. Maximum cylinder pressure decreased about 1–2% when the amount of Rapeseed Methyl Ester (RME) expanded in the diesel fuel when operating at full load and 1400 min–1 speed. At rated mode, the minimum bsfc increased, when operating on biofuel blends compared to mineral diesel. The maximum brake thermal efficiency sustained at the levels from 0.3% to 6.5% lower in comparison with mineral diesel operating at full (100%) load. When the engine was running at maximum torque mode using diesel – RME fuel blends B10, B20, B40 and B60 the total emissions of nitrogen oxides decreased. At full and moderate load, the emission of carbon monoxide significantly raised as the amount of RME in fuel increased.

scholarly journals Effects of Oxygenated Additives with Diesel on the Performance of D I Diesel Engine

2019 ◽  
pp. 1-9 ◽  
Author(s):  
P. Venkateswara Rao ◽  
S. Ramesh ◽  
S. Anil Kumar
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Direct Injection ◽  
Primary Objective ◽  
Nox Emissions ◽  
Oxides Of Nitrogen ◽  
Smoke Emission ◽  
Oxygenated Additives ◽  
Blend Fuel ◽  
Fuel Formulation

The primary objective of this work is to reduce the particulate matter (PM) or smoke emission and oxides of nitrogen (NOx emissions) the two important harmful emissions and to increase the performance of diesel engine by using oxygenated additives with diesel as blend fuel. Formulation of available diesel fuel with additives is an advantage than considering of engine modification for improvement of higher output. From the available additives, three oxygenates are selected for experimentation by considering many aspects like cost, content of oxygen, flashpoint, solubility, seal etc. The selected oxygenates are Ethyl Aceto Acetate (EAA), Diethyl Carbonate (DEC), Diethylene Glycol (DEG). These oxygenates are blended with diesel fuel in proportions of 2.5%, 5% and 7.5% by volume and experiments were conducted on a single cylinder naturally aspirated direct injection diesel engine. From the results the conclusion are higher brake power and lower BSFC obtained for DEC blends at 7.5% of additive as compared to EAA, DEG and diesel at full load. In case of DEC blends the smoke emission is lower, whereas NOx emissions are very low in case of EAA additive blend fuels. The DEC can be considered is the best oxygenating additive to be blend with diesel in a proportion of 7.5% by volume.

Effect of Cetane Number Improver on Emission Characteristics of Methanol/Diesel Blend Fuel

2012 ◽  
Vol 512-515 ◽  
pp. 1888-1891
Author(s):  
Jia Yi Du ◽  
Wei Xun Zhang ◽  
Deng Pan Zhang ◽  
Zhen Yu Sun
Keyword(s):  
Diesel Engine ◽  
Direct Injection ◽  
Cetane Number ◽  
Nox Emission ◽  
Fuel Load ◽  
Emission Characteristics ◽  
Soot Emission ◽  
Maximum Torque ◽  
Blend Fuel ◽  
Co Emission

The influence of cetane number improver on emission characteristics of diesel engine fueled with methanol/diesel blend fuel was investigated. Methanol/diesel blend fuel was prepared, in which the methanol content is 10%, different mass fraction (0%，0.5%) of cetane number improver were added to the blend fuel. Load characteristic experiments at maximum torque speed of the engine were carried out on 4B26 direct injection diesel engine. The results show that, compared with the engine fueled with diesel, the CO emission increases under low loads and reduces under medium and high loads, the HC emission increases, the NOx emission decreases under medium and low loads and increases under high loads, the soot emission reduces significantly when the diesel engine fueled with blends. When cetane number improver was added to blends, the CO and NOx emission reduces, the HC emission decreases, the soot emission increases to some extent compared with the methanol/dieselblend fuel without cetane number improver.

Experimental Investigations of Performance and Emission Characteristics of Moringa Oil Methyl Ester and Its Diesel Blends in a Single Cylinder Direct Injection Diesel Engine

2009 ◽  
Author(s):  
Shyamsundar Rajaraman ◽  
G. K. Yashwanth ◽  
T. Rajan ◽  
R. Siva Kumaran ◽  
P. Raghu
Keyword(s):  
Diesel Engine ◽  
Alternative Fuels ◽  
Methyl Esters ◽  
Direct Injection ◽  
Engine Performance ◽  
Experimental Investigations ◽  
Emission Analysis ◽  
Performance And Emission ◽  
Direct Injection Diesel Engine ◽  
Moringa Oil

World at present is confronted with the twin crisis of fossil fuel depletion and environmental pollution. Rapid escalation in prices and hydrocarbon resources depletion has led us to look for alternative fuels, which can satisfy ever increasing demands of energy as well as protect the environment from noxious pollutants. In this direction an attempt has been made to study a biodiesel, namely Moringa Oil Methyl Esters [MOME]. All the experiments were carried out on a 4.4 kW naturally aspirated stationary direct injection diesel engine coupled with a dynamometer to determine the engine performance and emission analysis for MOME. It was observed that there was a reduction in HC, CO and PM emissions along with a substantial increase in NOx. MOME and its blends had slightly lower thermal efficiency than diesel oil.

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