期刊
INDUSTRIAL CROPS AND PRODUCTS
卷 47, 期 -, 页码 323-330出版社
ELSEVIER
DOI: 10.1016/j.indcrop.2013.03.026
关键词
Bio-lubricant; COF; Wear; Viscosity
资金
- Department of Mechanical Engineering, University of Malaya
- Ministry of Higher Education (MOHE) of Malaysia for HIR Grant [UM.C/HIR/MOHE/ENG/07]
The investigation of lubricated friction and wear is an extended study. This paper outlines the tribological characteristics of Jatropha oil (JO) contaminated bio-lubricant by using Cygnus wear and Four-ball tribo testing machines. To formulate the bio-lubricants, 10-50% by volume of Jatropha oil were blended with the base lubricant SAE 40. Experimental results showed that the lubrication regime that occurred during the test was boundary lubrication while the main wear mechanisms were abrasive and the adhesive wear. During Cygnus wear testing, the lowest wear was found with the addition of 10% JO, and above 20% contamination, the wear rate was increased considerably. The addition of Jatropha oil in the base lubricant acted as a very good lubricant additive which reduced the friction and wear scar diameter of maximum 34% and 29%, respectively during the tribo test. The application of 10% bio-lubricant in the automotive engine will enhance the mechanical efficiency and take part to reduce the dependency on petroleum oil as well. (c) 2013 Elsevier B.V. All rights reserved.
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