A comparative evaluation of Al2O3 coated low heat rejection diesel engine performance and emission characteristics using fuel as rice bran and pongamia methyl ester

2010 ◽  
Vol 2 (5) ◽  
pp. 053105 ◽  
Author(s):  
M. Mohamed Musthafa ◽  
S. P. Sivapirakasam ◽  
M. Udayakumar
Keyword(s):  
Diesel Engine ◽  
Methyl Ester ◽  
Rice Bran ◽  
Comparative Evaluation ◽  
Engine Performance ◽  
Emission Characteristics ◽  
Heat Rejection ◽  
Performance And Emission ◽  
Pongamia Methyl Ester

scholarly journals Experimental investigation of evaporation rate and emission studies of diesel engine fuelled with blends of used vegetable oil biodiesel and producer gas

2015 ◽  
Vol 19 (6) ◽  
pp. 1967-1975
Author(s):  
Balakrishnan Nanjappan ◽  
Goundar Kavandappa ◽  
Nedunchezhian Natarajan
Keyword(s):  
Diesel Engine ◽  
Methyl Ester ◽  
Vegetable Oil ◽  
Engine Performance ◽  
Emission Characteristics ◽  
Producer Gas ◽  
Single Cylinder ◽  
Performance And Emission ◽  
Test Engine ◽  
Used Vegetable Oil

An experimental study to measure the evaporation rates, engine performance and emission characteristics of used vegetable oil methyl ester and its blends with producer gas on naturally aspirated vertical single cylinder water cooled four stroke single cylinder diesel engine is presented. The thermo-physical properties of all the bio fuel blends have been measured and presented. Evaporation rates of used vegetable oil methyl ester and its blends have been measured under slow convective environment of air flowing with a constant temperature and the values are compared with fossil diesel. Evaporation constants have been determined by using the droplet regression rate data. The fossil diesel, biodiesel blends and producer gas have been utilized in the test engine with different load conditions to evaluate the performance and emission characteristics of diesel engine and the results are compared with each other. From these observations, it could be noted that, smoke and hydrocarbon drastically reduced with biodiesel in the standard diesel engine without any modifications.

Engine Analysis of Single Cylinder DI Diesel Engine Fuelled With Sunflower Oil, Sunflower Oil Methyl Ester and Its Blends

2006 ◽  
Author(s):  
V. Anandram ◽  
S. Ramakrishnan ◽  
J. Karthick ◽  
S. Saravanan ◽  
G. LakshmiNarayanaRao
Keyword(s):  
Diesel Engine ◽  
Methyl Ester ◽  
Sunflower Oil ◽  
Direct Injection ◽  
Emission Characteristics ◽  
Single Cylinder ◽  
Performance And Emission ◽  
Di Diesel Engine ◽  
Engine Emission ◽  
Oil Sunflower

In the present work, the combustion, performance and emission characteristics of sunflower oil, sunflower methyl ester and its blends were studied and compared with diesel by employing them as fuel in a single cylinder, direct injection, 4.4 KW, air cooled diesel engine. Emission measurements were carried out using five-gas exhaust gas analyzer and smoke meter. The performance characteristics of Sunflower oil, Sunflower methyl ester and its blends were comparable with those of diesel. The components of exhaust such as HC, CO, NOx and soot concentration of the fuels were measured and presented as a function of load and it was observed that the blends had similar performance and emission characteristics as those of diesel. NOx emissions of sunflower oil methyl ester were slightly higher than that of diesel but that of sunflower oil was slightly lower than that of diesel. With respect to the combustion characteristics it was found that the biofuels have lower ignition delay than diesel. The heat release rate was very high for diesel than for the biofuel.

Influence of Injection Pressure on Performance and Emission Characteristics of Nerium Methyl Ester Operated DI Diesel Engine

2014 ◽  
Vol 592-594 ◽  
pp. 1632-1637
Author(s):  
Ramalingam Senthil ◽  
C. Paramasivam ◽  
Rajendran Silambarasan
Keyword(s):  
Diesel Engine ◽  
Methyl Ester ◽  
Fuel Injection ◽  
Cetane Number ◽  
Load Condition ◽  
Injection Pressure ◽  
Emission Characteristics ◽  
Operational Parameters ◽  
Performance And Emission ◽  
Standard Design

Nerium methyl ester, an esterified biofuel, has an excellent cetane number and a reasonable calorific value. It closely resembles the behaviour of diesel. However, being a fuel of different origin, the standard design limits of a diesel engine is not suitable for Nerium methyl ester (NME). Therefore, in this work, a set of design and operational parameters are studied to find out the optimum performance of Nerium methyl ester run diesel engine. This work targets at finding the effects of the engine design parameter viz. fuel injection pressure (IP) on the performance with regard to specific fuel consumption (SFC), brake thermal efficiency (BTHE) and emissions of CO, CO2, HC, NOxwith N20 as fuel. Comparison of performance and emission was done for different values of injection pressure to find best possible condition for operating engine with NME. For small sized direct injection constant speed engines used for agricultural applications, the optimum injection pressure was found as 240bar.Methyl esters from Nerium, with properties close to diesel; show better performance and emission characteristics. Hence Nerium (N20) blend can be used in existing diesel engines without compromising the engine performance. Diesel (25%) thus saved will greatly help the interests of railways in meeting the demand for fuel,as diesel trains are operated at maximum load condition.

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