The combustion related properties of vegetable oils are somewhat similar to diesel oil. Neat vegetable oils or their blends with diesel, however, pose various long-term problems in compression ignition engines, e.g., poor atomization characteristics, ring-sticking, injector coking, injector deposits, injector pump failure, and lube oil dilution by crank-case polymerization. These undesirable features of vegetable oils are because of their inherent properties like high viscosity, low volatility, and polyunsaturated character. Linseed oil methyl ester (LOME) was prepared using methanol for long-term engine operations. The physical and combustion-related properties of the fuels thus developed were found to be closer to that of the diesel oil. A blend of 20 percent was selected as optimum biodiesel blend. Two similar new engines were completely disassembled and subjected to dimensioning of various vital moving parts and then subjected to long-term endurance tests on 20 percent biodiesel blend and diesel oil, respectively. After completion of the test, both the engines were again disassembled for physical inspection and wear measurement of various vital parts. The physical wear of various vital parts, injector coking, carbon deposits on piston, and ring sticking were found to be substantially lower in case of 20 percent biodiesel-fuelled engine. The lubricating oil samples drawn from both engines were subjected to atomic absorption spectroscopy for measurement of various wear metal traces present. AAS tests confirmed substantially lower wear and thus improved life for biodiesel operated engines.
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April 2003
Technical Papers
Effect of Biodiesel Utilization of Wear of Vital Parts in Compression Ignition Engine
A. K. Agarwal,
A. K. Agarwal
Department of Mechanical Engineering, Indian Institute of Technology, Kanpur, Kanpur 208016, India
11
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J. Bijwe,
J. Bijwe
ITTMEC, Indian Institute of Technology, Delhi, New Delhi 110016, India
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L. M. Das
L. M. Das
Centre for Energy Studies, Indian Institute of Technology, New Delhi 110016, India
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A. K. Agarwal
11
Department of Mechanical Engineering, Indian Institute of Technology, Kanpur, Kanpur 208016, India
J. Bijwe
ITTMEC, Indian Institute of Technology, Delhi, New Delhi 110016, India
L. M. Das
Centre for Energy Studies, Indian Institute of Technology, New Delhi 110016, India
Contributed by the Internal Combustion Engine Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received by the ICE Division, July 1999; final revision received by the ASME Headquarters, August 2001. Editor: D. N. Assanis.
J. Eng. Gas Turbines Power. Apr 2003, 125(2): 604-611 (8 pages)
Published Online: April 29, 2003
Article history
Received:
July 1, 1999
Revised:
August 1, 2001
Online:
April 29, 2003
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Citation
Agarwal, A. K., Bijwe, J., and Das, L. M. (April 29, 2003). "Effect of Biodiesel Utilization of Wear of Vital Parts in Compression Ignition Engine ." ASME. J. Eng. Gas Turbines Power. April 2003; 125(2): 604–611. https://doi.org/10.1115/1.1454114
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