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Advances in Mechanical Engineering
Volume 2010 (2010), Article ID 581407, 6 pages
http://dx.doi.org/10.1155/2010/581407
Research Article

Experimental Investigations on the Effects of Cerium Oxide Nanoparticle Fuel Additives on Biodiesel

1School of Nano Science and Technology, National Institute of Technology, Calicut 673 601, India
2The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332-0325, USA

Received 5 June 2009; Accepted 6 October 2009

Academic Editor: Moran Wang

Copyright © 2010 V. Sajith et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper reports the results of experimental investigations on the influence of the addition of cerium oxide in the nanoparticle form on the major physicochemical properties and the performance of biodiesel. The physicochemical properties of the base fuel and the modified fuel formed by dispersing the catalyst nanoparticles by ultrasonic agitation are measured using ASTM standard test methods. The effects of the additive nanoparticles on the individual fuel properties, the engine performance, and emissions are studied, and the dosing level of the additive is optimized. Comparisons of the performance of the fuel with and without the additive are also presented. The flash point and the viscosity of biodiesel were found to increase with the inclusion of the cerium oxide nanoparticles. The emission levels of hydrocarbon and NOx are appreciably reduced with the addition of cerium oxide nanoparticles.