Influence of chemical blends on palm oil methyl esters' cold flow properties and fuel characteristics

Ali, Obed M. and Yusaf, Talal and Mamat, Rizalman and Abdullah, Nik R. and Abdullah, Abdul Adam (2014) Influence of chemical blends on palm oil methyl esters' cold flow properties and fuel characteristics. Energies, 7 (7). pp. 4364-4380.

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Alternative fuels, like biodiesel, are being utilized as a renewable energy source and an effective substitute for the continuously depleting supply of mineral diesel as they have similar combustion characteristics. However, the use of pure biodiesel as a fuel for diesel engines is currently limited due to problems relating to fuel properties and its relatively poor cold flow characteristics. Therefore, the most acceptable option for improving the properties of biodiesel is the use of a fuel additive. In the present study, the properties of palm oil methyl esters with increasing additive content were investigated after addition of ethanol, butanol and diethyl ether. The results revealed varying improvement in acid value, density, viscosity, pour point and cloud point, accompanied by a slight decrease in energy content with an increasing additive ratio. The viscosity reductions at 5% additive were 12%, 7%, 16.5% for ethanol, butanol and diethyl ether, respectively, and the maximum reduction in pour point was 5 °C at 5% diethyl ether blend. Engine test results revealed a noticeable improvement in engine brake power and specific fuel consumption compared to palm oil biodiesel and the best performance was obtained with diethyl ether. All the biodiesel-additive blend samples meet the requirements of ASTM D6751 biodiesel fuel standards for the measured properties. © 2014 by the authors.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version deposited in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 11 Apr 2017 05:08
Last Modified: 22 Aug 2019 04:39
Uncontrolled Keywords: butanol; diethyl ether; energy content; ethanol; palm oil biodiesel; petroleum refining and petrochemicals; primary products; motor fuels; petroleum substitutes; other fuels; non-fossil fuels
Fields of Research (2008): 09 Engineering > 0902 Automotive Engineering > 090201 Automotive Combustion and Fuel Engineering (incl. Alternative/Renewable Fuels)
Fields of Research (2020): 40 ENGINEERING > 4002 Automotive engineering > 400201 Automotive combustion and fuel engineering
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