Smoke and Fuel Consumption Measurements in a Direct Injection Diesel Engine with Variable Swirl

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.

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Performance and Fuel Consumption of a Single-Cylinder, Direct-Injection Diesel Engine Using a Platinum Fuel Additive

10.4271/910229 ◽

1991 ◽

Cited By ~ 8

Author(s):

Jerald A. Caton ◽

Warren P. Ruemmele ◽

Danny T. Kelso ◽

W. Robert Epperly

Keyword(s):

Diesel Engine ◽

Fuel Consumption ◽

Direct Injection ◽

Fuel Additive ◽

Single Cylinder ◽

Direct Injection Diesel Engine

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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

SHS Web of Conferences ◽

10.1051/shsconf/20184902010 ◽

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.

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

Journal of Engineering for Gas Turbines and Power ◽

10.1115/1.2179464 ◽

2005 ◽

Vol 128 (4) ◽

pp. 915-920 ◽

Cited By ~ 5

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.

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

International Journal of Engine Research ◽

10.1243/14680870260127864 ◽

2002 ◽

Vol 3 (2) ◽

pp. 69-79 ◽

Cited By ~ 6

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.

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