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Fuel Combustion

Experimental Study of a Diesel Engine Performance Running on Waste Vegetable Oil Biodiesel Blend

[+] Author and Article Information
Boubahri Chokri

Ionised and Reactive Media Study (EMIR),  University of Monastir,Avenue of Ibn El Jazzar, Monastir, 5019, Tunisiachokri.boubahri1@gmail.fr

Ennetta Ridha

Ionised and Reactive Media Study (EMIR), University of Monastir, Avenue of Ibn El Jazzar, Monastir, 5019, Tunisia; Higher Institute of Industrial Systems of Gabes (ISSIG),  University of Gabes, Salaheddine El Ayoubi Street, Gabes, 6011, Tunisiaridha_ennetta@yahoo.fr

Said Rachid

Ionised and Reactive Media Study (EMIR),  University of Monastir, Avenue of Ibn El Jazzar, Monastir, 5019, TunisiaRachid.Said@ipeim.rnu.tn

Bessrour Jamel

Applied Mechanic, Engineering and Industrialization,National School of Engineers of Tunis,  University of Tunis El Manar, BP 37, Le Belvédère, 1002, Tunisiajamel.bessrour@enit.rnu.tn

J. Energy Resour. Technol 134(3), 032202 (May 31, 2012) (6 pages) doi:10.1115/1.4006655 History: Received October 26, 2011; Revised April 06, 2012; Published May 31, 2012; Online May 31, 2012

The main purpose of this research is to study the effect of various blends of an environmental friendly alternative fuel “methyl ester” on the performance of a heavy diesel engine. The biodiesel was obtained from a chemical process: the transesterification of waste oils (frying oils). Tests were conducted on an engine test bench in accordance to DIN 2020 standards. Results obtained demonstrate that the biodiesel gives very interesting ecological advantages but engine performance was reduced slightly comparatively to those obtained with a pure diesel fuel. We have noted about 5% decrease in power and torque and about 2% in Nox emission for every 10% of biodiesel blend added comparatively to pure diesel. However, the use of biodiesel has slightly increased specific fuel consumption (about 6% for every 10% of biodiesel blend added).

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Copyright © 2012 by American Society of Mechanical Engineers
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Figures

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Figure 1

The engine test bench

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Figure 2

Torque versus speed

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Figure 3

Power versus speed

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Figure 4

NOx emission versus speed

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Figure 5

Smoke opacity versus biodiesel blend

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Figure 6

Specific fuel consumption versus speed

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