Study of lubricant viscosity from a diesel engine operating on various percentages of coconut oil blended fuel

M. Varman, M. S. Faizul, H. H. Masjuki, M. A. Kalam, T. M.I. Mahlia

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, the lubricant viscosity from a diesel engine operating on various percentages of coconut oil blended fuel is investigated to determine the suitable mixture appropriate for a diesel engine. The coconut oil was blended with conventional diesel fuel at an amount varying from ten to fifty percent. The lubricant used in this study is the conventional commercially available lubricant (SAE 40). After proper blending of diesel with coconut oil, the blended fuels are loaded into the fuel tank. The engine is operated at half throttle setting running at 1600 rpm for 100 hours. At every ten hour interval, one lubricant sample was collected and analyzed using a viscometer at 100 °C and 40 °C. The results show that the viscosity for all the blended fuel remain about constant throughout the 100 hours test. However, fifty percent coconut oil blended fuel at 40 °C shows slightly lower viscosity level in comparison to other percentages of blended fuel system. It is expected this is due to high fuel dilution in lube oil. As a result, ten to thirty percent coconut oil blended fuels seems suitable for diesel engine because it's able to prolong lubricant life span by maintaining its viscosity.

Original languageEnglish
Title of host publicationProceedings of the World Tribology Congress III - 2005
Pages861-862
Number of pages2
Publication statusPublished - 01 Dec 2005
Event2005 World Tribology Congress III - Washington, D.C., United States
Duration: 12 Sep 200516 Sep 2005

Publication series

NameProceedings of the World Tribology Congress III - 2005

Other

Other2005 World Tribology Congress III
CountryUnited States
CityWashington, D.C.
Period12/09/0516/09/05

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • Cite this

    Varman, M., Faizul, M. S., Masjuki, H. H., Kalam, M. A., & Mahlia, T. M. I. (2005). Study of lubricant viscosity from a diesel engine operating on various percentages of coconut oil blended fuel. In Proceedings of the World Tribology Congress III - 2005 (pp. 861-862). (Proceedings of the World Tribology Congress III - 2005).