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Journal of Automobile Engineering and Applications

Friction and Wear Response of CottonSeed Oils and Esterified CottonSeed Oil and their Blends with Mineral Engine Oil in a Reciprocating Sliding Contact at Severe Contact Conditions

  1. Gulab Siraskar
  2. R.S. Jahagirdar
  3. V.D. Wakchaure

Abstract

Many studies investigating the tribological performance of pure cottonseed and other bio-based oils have been conducted; a better understanding of vegetable oil tribologicalperformance at extreme conditions is still required. Little work has been carried out to studythe effect of vegetable oils on the performance of a lubricant formed from a blend ofcottonseed oil and conventional mineral engine oil. This work presents the tribologicalperformance of esterified cottonseed oil, and their blends with mineral oil, in a hightemperature and contact pressure reciprocating contact. Esterified cottonseed oil were mixedwith commercial mineral engine oil at a blend from 10 to 50% ratio by volume. Theconventional mineral oil was also tested to provide an ideal condition for reference. Thefriction performance of the esterified cottonseed oil was competitive to that of the mineralengine oil. The mineral engine oil was very good in wear resistance over both cottonseed andesterified cottonseed oil, due to its additives effect. When blended with mineral engine andesterified cottonseed oils demonstrated a reduction in coefficient of friction up to 50 % blend.An improvement in wear performance was observed for esterifies and blending with mineraloils. This work shows that for esterified cottonseed oil when added 10 % with mineral oil, theperformance of blended mineral oil is improved, and that tribological characteristic ofcottonseed oils are improved. That said, the significant limitation of these cottonseed oils istheir ability to provide a satisfactory level of wear resistance. Esterified cottonseed oil showsan improved result. Simulation model develoed for HC emission based on absoprtiondesorption, HC emission dcreases with increses in engie speed. It is suggested that any futurework in this area should have a greater emphasis on the enhancement of wear resistance, andstudies should be made with different additives.

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