Numerical Investigation of Combustion and Exhaust Emissions Characteristics Based on Experimental Spray and Atomization Characteristics in a Compression Ignition Diesel Engine

2010 ◽  
Vol 24 (4) ◽  
pp. 2429-2438 ◽  
Author(s):  
Su Han Park ◽  
Hyung Jun Kim ◽  
Chang Sik Lee
Keyword(s):  
Diesel Engine ◽  
Numerical Investigation ◽  
Exhaust Emissions ◽  
Compression Ignition ◽  
Atomization Characteristics

Preparation of Jatropha Biodiesel Using Hydrotalcite Catalyst and its Performance on Diesel Engine

2011 ◽  
Vol 110-116 ◽  
pp. 1368-1373 ◽  
Author(s):  
Amar P. Pandhare ◽  
S. G. Wagholikar ◽  
R. B. Jadhav Sachin Musale ◽  
A. S. Padalkar
Keyword(s):  
Diesel Engine ◽  
Thermal Efficiency ◽  
Specific Energy Consumption ◽  
Exhaust Emissions ◽  
Effect Of Temperature ◽  
Compression Ignition ◽  
Performance Parameters ◽  
Jatropha Oil ◽  
Compression Ignition Engine ◽  
Ci Engines

The heterogeneous catalyst are environment friendly and render the process simplified. A wide variety of solid bases have been examined for this process. The present work reports the use of hydrotalcite catalyst for the synthesis of Biodiesel from jatropha oil. An experimental investigation has been carried out to analyze the performance and emission characteristics of a compression ignition engine fuelled with Jatropha oil and its blends (10%, 20%, 40%, 50%, and 60 % ) with mineral diesel. The effect of temperature on the viscosity of Jatropha oil has also been investigated. A series of engine tests, have been conducted using each of the above fuel blends for comparative performance evaluation. The performance parameters evaluated include thermal efficiency, brake specific fuel consumption (BSFC), brake specific energy consumption (BSEC), and exhaust gas temperature whereas exhaust emissions include mass emissions of CO, HC, NO. These parameters were evaluated in a single cylinder compression ignition diesel engine. The results of the experiment in each case were compared with baseline data of mineral diesel. Significant improvements have been observed in the performance parameters of the engine as well as exhaust emissions. The gaseous emissions of oxide of nitrogen from all blends are lower than mineral diesel at all engine loads. Jatropha oil blends with diesel (up to 50% v/v) can replace diesel for operating the CI engines giving lower emissions and improved engine performance. More over results indicated that B20 have closer performance to diesel and B100 have lower brake thermal efficiency mainly due to its high viscosity compared to diesel.

Investigations on Preheated Palm Oil Methyl Esters in the Diesel Engine

1996 ◽  
Vol 210 (2) ◽  
pp. 131-138 ◽  
Author(s):  
H Masjuki ◽  
M Z Abdulmuin ◽  
H S Sii
Keyword(s):  
Diesel Engine ◽  
Palm Oil ◽  
Methyl Esters ◽  
Engine Performance ◽  
Exhaust Emissions ◽  
High Viscosity ◽  
Major Drawback ◽  
Brake Power ◽  
Atomization Characteristics ◽  
Conventional Diesel Fuel

The major drawback of vegetable oil fuels is their high viscosity. Various conventional approaches to reducing the viscosity of vegetable oils are studied theoretically and experimentally. An attempt to reduce the viscosity of the palm oil methyl esters (POME) by preheating the fuel was performed and a comparison on the basis of its projected chance of leading to ‘diesel-like’ combustion was also carried out with conventional diesel fuel. It was observed that by preheating the POME fuel above the conventional temperature, the engine performance, especially the brake power output and the exhaust emissions characteristics, is improved significantly, approaching diesellike' performance. This is mainly attributed to the fact that as the fuel is preheated the viscosity is reduced close to ordinary diesel (OD) fuel. This will result in improved spray and atomization characteristics. Torque, brake power, specific fuel consumption, exhaust emissions and brake thermal efficiencies were measured and calculated. The potential for improved engine performance and reduction in emissions levels was demonstrated.

scholarly journals Numerical investigation on soot particles emission in compression ignition diesel engine by using particulate mimic soot model

2016 ◽  
Vol 90 ◽  
pp. 01071 ◽  
Author(s):  
Fadzli Ibrahim ◽  
Wan Mohd Faizal Wan Mahmood ◽  
Shahrir Abdullah ◽  
Mohd Radzi Abu Mansor
Keyword(s):  
Diesel Engine ◽  
Numerical Investigation ◽  
Compression Ignition ◽  
Soot Particles ◽  
Soot Model

scholarly journals Numerical investigation of soot mass concentration in compression ignition diesel engine

2016 ◽  
Vol 10 (3) ◽  
pp. 2275-2287
Author(s):  
F. Ibrahim ◽  
◽  
W.M.F. Wan Mahmood ◽  
S. Abdullah ◽  
M.R. Abu Mansor ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Numerical Investigation ◽  
Mass Concentration ◽  
Compression Ignition ◽  
Soot Mass

Numerical investigation of the effect of fuel concentration stratification on gasoline compression ignition combustion under low-to-medium load conditions

Fuel ◽  
2021 ◽  
Vol 289 ◽  
pp. 119957
Author(s):  
Yanzhi Zhang ◽  
Zhixia He ◽  
Xianyin Leng ◽  
Wenjun Zhong ◽  
Qian Wang ◽  
...  
Keyword(s):  
Numerical Investigation ◽  
Compression Ignition ◽  
Fuel Concentration ◽  
Compression Ignition Combustion ◽  
Load Conditions
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