Effect of stratified water injection on exhaust gases and fuel consumption of a direct injection diesel engine

MTZ worldwide ◽  
2004 ◽  
Vol 65 (1) ◽  
pp. 16-19 ◽  
Author(s):  
Rainer Pauls ◽  
Christof Simon
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Direct Injection ◽  
Water Injection ◽  
Exhaust Gases ◽  
Direct Injection Diesel Engine

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 Effect of butanol on fuel consumption and smoke emission of direct injection diesel engine fueled by jatropha oil and diesel fuel blends with cold EGR system

2018 ◽  
Vol 49 ◽  
pp. 02010
Author(s):  
Syarifudin ◽  
Syaiful ◽  
Eflita Yohana
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Alternative Fuels ◽  
Fossil Fuels ◽  
Direct Injection ◽  
Jatropha Oil ◽  
Fuel Blend ◽  
Direct Injection Diesel Engine

Diesel engines are widely used in industry, automotive, power generation due to better reliability and higher efficiency. However, diesel engines produce high smoke emissions. The main problem of diesel engine is actually the use of fossil fuels as a source of energy whose availability is diminishing. Therefore alternative fuels for diesel fuels such as jatropha and butanol are needed to reduce dependence on fossil fuels. In this study, the effect of butanol usage on fuel consumption and smoke emissions of direct injection diesel engine fueled by jatropha oil and diesel fuel with cold EGR system was investigated. The percentage of butanol was in the range of 5 to 15%, jatropha oil was in the range of 10 to 30% and the balance was diesel fuel. Cold EGR was varied through valve openings from 0 to 100% with 25% intervals. The experimental data shows that the BSFC value increases with increasing percentage of butanol. In addition, the use of EGR results in a higher increase of BSFC than that without EGR. While the addition of butanol into a blend of jatropha oil and diesel fuel causes a decrease in smoke emissions. The results also informed that the use of EGR in the same fuel blend led to increased smoke emissions.

Utilization of Low-Calorific Gaseous Fuel in a Direct-Injection Diesel Engine

2005 ◽  
Vol 128 (4) ◽  
pp. 915-920 ◽  
Author(s):  
Ali Mohammadi ◽  
Masahiro Shioji ◽  
Takuji Ishiyama ◽  
Masato Kitazaki
Keyword(s):  
Power Generation ◽  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Direct Injection ◽  
Engine Performance ◽  
Chemical Processes ◽  
Solid Wastes ◽  
Direct Injection Diesel Engine

Low-calorific gases with a small portion of hydrogen are produced in various chemical processes, such as gasification of solid wastes or biomass. The aim of this study is to clarify the efficient usage of these gases in diesel engines used for power generation. Effects of amount and composition of low-calorific gases on diesel engine performance and exhaust emissions were experimentally investigated adding hydrogen-nitrogen mixtures into the intake gas of a single-cylinder direct-injection diesel engine. The results indicate that optimal usage of low-calorific gases improves NOx and Smoke emissions with remarkable saving in diesel fuel consumption.

Study of nozzle characteristics on the performance of a small-bore high-speed direct injection diesel engine

2002 ◽  
Vol 3 (2) ◽  
pp. 69-79 ◽  
Author(s):  
M-S Lyu ◽  
B-S Shin
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
High Speed ◽  
Direct Injection ◽  
Engine Performance ◽  
Vehicle Simulation ◽  
Direct Injection Diesel Engine ◽  
Long Time ◽  
Hsdi Diesel Engine ◽  
Swept Volume

As Co2 emissions from vehicles are gaining global attention, the low fuel consuming powertrain is in much greater demand than before. Some alternatives are suggested but the high-speed direct injection (HSDI) diesel engine would be the most realistic solution. Vehicle simulation shows that a car with low fuel consumption can be realized by applying a 1–1.2 L high-speed direct injection diesel engine in vehicles weighing about 750 kg. Although the direct injection diesel engine has been researched for a long time, enhancement of mixing between air and fuel in a limited space makes it a challenging area to develop a small swept volume HSDI diesel engine. The authors are investigating small HSDI diesel engine combustion technologies in an effort to realize a low fuel consumption vehicle. The main objective in this study is to obtain a better understanding of the combustion-related parameters from such a small size HSDI diesel engine in order to improve engine performance.

scholarly journals THE INFLUENCE OF FUEL ADDITIVES SO-2E ON DIESEL ENGINE EXHAUST EMISSION

Transport ◽  
2003 ◽  
Vol 18 (5) ◽  
pp. 202-208 ◽  
Author(s):  
Gvidonas Labeckas ◽  
Stasys Slavinskas
Keyword(s):  
Diesel Engine ◽  
Nitrogen Oxides ◽  
Diesel Engines ◽  
High Speed ◽  
Direct Injection ◽  
Nox Emission ◽  
Fuel Additives ◽  
Smoke Emission ◽  
Exhaust Gases ◽  
Direct Injection Diesel Engine

One of the methods that allows substantially to reduce exhaust smoke of diesel engines and avoid possible damage of the environment by harmful emissions is the usage of multipurpose fuel additives. The efficiency of new Estonian made fuel additives SO-2E, that have been introduced recently for the experts attention, was investigated in small heating boilers and low-powered ships. The purpose of this research is to determine the influence of fuel additives SO-2E on the performance of a high-speed direct injection diesel engine in order to evaluate some of quantitative composition changes of the exhaust gases especially environmentally harmful nitrogen oxides, carbon monoxides and smoke emissions. Bench tests have been performed on the four-stroke, four-cylinder, water-cooled direct injection diesel engine D-243 with splash volume Vl = 4,75 dm3 and compression ratio ɛ = 16:1. Test results show that the application of diesel fuel additives SO-2E in proportion 1:500 (0,2 % by volume) at engine rated power reduces nitrogen monoxides NO and common NOx emission by 11,54 and 9,64 % respectively, however the amount of NO2 in totally diminished background of nitrogen oxides increases by 7,39 %. On the other hand, when running the engine at moderate (bmpe = 0,35 MPa) load, the fuel additives reduce emissions of all nitrogen components - NO by 16,1 %, NO2 by 11,8 % and NOx by 15,7 %. The influence of fuel additives on the amount of carbon monoxides in the exhausts seems to be more complicated. At engine rated speed/power fuel additives increase CO emission by 12,5 %, but as soon as engine load increases and revolution frequency drops down to the maximal torque area n = 1600-1800 min-1, they reduce the amount of CO in the exhaust gases on the average 20–28 %. It is important to notice that the changes in the smoke emission remain in close association with CO emissions. At certain revolution frequencies and moderate load the fuel additives SO-2E lead to noticeable reduction of the exhaust smoke, however at engine rated power and speed the smoke emission is obtained approximately 5 – 10 % higher. In spite of dissimilar influence of the fuel additives SO-2E on the quantities of CO produced and exhaust smoke it would be worth to apply them in high-speed DI diesel engines in order to reduce nitrogen oxides NOx emission.

SPRAY CHARACTERISTICS IN A DIRECT-INJECTION DIESEL ENGINE

1996 ◽  
Vol 6 (1) ◽  
pp. 95-109 ◽  
Author(s):  
H. C. Yang ◽  
Hong Sun Ryou ◽  
Y. T. Jeong ◽  
Young Ki Choi
Keyword(s):  
Diesel Engine ◽  
Direct Injection ◽  
Spray Characteristics ◽  
Direct Injection Diesel Engine
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