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Energies 2014, 7(7), 4364-4380; doi:10.3390/en7074364

Influence of Chemical Blends on Palm Oil Methyl Esters’ Cold Flow Properties and Fuel Characteristics

1
Faculty of Mechanical Engineering, Universiti Malaysia Pahang, 26600 Pekan, Pahang, Malaysia
2
National Center for Engineering in Agriculture (NCEA), Faculty of Engineering and Surveying, University of Southern Queensland, Toowoomba, 4350 QLD, Australia
3
Faculty of Mechanical Engineering, Universiti Teknologi MARA, UiTM Shah Alam, 40450 Shah Alam, Selangor, Malaysia
*
Author to whom correspondence should be addressed.
Received: 25 February 2014 / Revised: 28 June 2014 / Accepted: 2 July 2014 / Published: 8 July 2014
(This article belongs to the Special Issue Renewable Energy for Agriculture)
View Full-Text   |   Download PDF [716 KB, uploaded 17 March 2015]   |  

Abstract

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. View Full-Text
Keywords: butanol; diethyl ether; energy content; ethanol; palm oil biodiesel butanol; diethyl ether; energy content; ethanol; palm oil biodiesel
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Ali, O.M.; Yusaf, T.; Mamat, R.; Abdullah, N.R.; Abdullah, A.A. Influence of Chemical Blends on Palm Oil Methyl Esters’ Cold Flow Properties and Fuel Characteristics. Energies 2014, 7, 4364-4380.

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