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Energies 2017, 10(1), 55; doi:10.3390/en10010055

Study on the Tribological Characteristics of Australian Native First Generation and Second Generation Biodiesel Fuel

School of Engineering and Technology, Central Queensland University, Rockhampton, Queensland 4702, Australia
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Author to whom correspondence should be addressed.
Academic Editor: Thomas E. Amidon
Received: 11 October 2016 / Revised: 21 December 2016 / Accepted: 22 December 2016 / Published: 5 January 2017
(This article belongs to the Collection Bioenergy and Biofuel)
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Abstract

Biodiesels are a renewable energy source, and they have the potential to be used as alternatives to diesel fuel. The aim of this study is to investigate the wear and friction characteristics of Australian native first generation and second generation biodiesels using a four-ball tribo tester. The biodiesel was produced through a two-step transesterification process and characterized according to the American Society for Testing and Materials (ASTM) standards. The tribological experiment was carried out at a constant 1800 rpm and different loads and temperatures. In addition, the surface morphology of the ball was tested by scanning electron microscope (SEM)/energy dispersive X-ray spectroscopy (EDX) analysis. The test results indicated that biodiesel fuels have a lower coefficient of frictions (COF) and lower wear scar diameter (WSD) up to 83.50% and 41.28%, respectively, compared to conventional diesel fuel. The worn surface area results showed that biodiesel fuel has a minimum percentage of C and O, except Fe, compared to diesel. In addition, the worn surface area for diesel was found (2.20%–27.92%) to be higher than biodiesel. The findings of this study indicated that both first and second generation biodiesel fuels have better tribological performance than diesel fuel, and between the biodiesel fuels, macadamia biodiesel showed better lubrication performance. View Full-Text
Keywords: renewable energy; wear and friction; beauty leaf biodiesel; macadamia biodiesel renewable energy; wear and friction; beauty leaf biodiesel; macadamia biodiesel
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MDPI and ACS Style

Rahman, M.M.; Rasul, M.; Hassan, N.M.S. Study on the Tribological Characteristics of Australian Native First Generation and Second Generation Biodiesel Fuel. Energies 2017, 10, 55.

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