Use of dimethyl ether (DME) as a diesel fuel alternative has been increased due to the unique combustion characteristics of this oxygenated fuel. We have investigated performance and combustion characteristics of a naturally aspirated diesel engine using DME as the main fuel. In the experimental part of this work, OM314 direct-injection diesel engine was used as a base engine. A comprehensive full cycle was coupled with a multizone combustion model to simulate performance characteristics of the engine. Results of the volumetric efficiency showed that the highest brake torque was achievable in midspeed range. The power speed diagram showed that the brake torque tended to be much higher for diesel fuel than for DME when the engine speed was less than 1900 rpm. However, in engine speeds higher than 1900 rpm, brake torque in DME mode of operation was larger. Calculated emission results also suggested that negligible soot is produced in DME mode operation.
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September 2010
Research Papers
Performance and Combustion Characteristics of OM314 Diesel Engine Fueled With DME: A Theoretical and Experimental Analysis
L. Savadkouhi,
L. Savadkouhi
Mechanical Research Institute,
savadkoohi@irost.com
IROST
, Tehran 19788-76114, IR Iran
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S. A. Jazayeri,
S. A. Jazayeri
Department of Mechanical Engineering,
Jazayeri@kntu.ac.ir
KNTU
, Tehran 19697-64499, IR Iran
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N. Shahangian,
N. Shahangian
Department of Mechanical Engineering,
navid.shahangian@gmail.com
KNTU
, Tehran 19697-64499, IR Iran
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J. Tavakoli
J. Tavakoli
Chemical and Biomolecular Engineering,
tavakoli@lafayette.edu
Lafayette College
, Easton, PA 18042
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L. Savadkouhi
S. A. Jazayeri
N. Shahangian
J. Tavakoli
J. Eng. Gas Turbines Power. Sep 2010, 132(9): 092801 (6 pages)
Published Online: June 7, 2010
Article history
Received:
June 4, 2009
Revised:
September 25, 2009
Online:
June 7, 2010
Published:
June 7, 2010
Citation
Savadkouhi, L., Jazayeri, S. A., Shahangian, N., and Tavakoli, J. (June 7, 2010). "Performance and Combustion Characteristics of OM314 Diesel Engine Fueled With DME: A Theoretical and Experimental Analysis." ASME. J. Eng. Gas Turbines Power. September 2010; 132(9): 092801. https://doi.org/10.1115/1.4000584
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