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Prediction Models for Density and Viscosity of Biodiesel and their Effects on Fuel Supply System in CI Engines

Tesfa, Belachew, Mishra, Rakesh, Gu, Fengshou and Powles, Nicholas (2010) Prediction Models for Density and Viscosity of Biodiesel and their Effects on Fuel Supply System in CI Engines. Renewable Energy, 35 (12). pp. 2752-2760. ISSN 0960-1481

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    Abstract

    Biodiesel is a promising non-toxic and biodegradable alternative fuel used in the transport sector. Nevertheless, the higher viscosity and density of biodiesel poses some acute problems when it is used it in unmodified engine. Taking this into consideration, this study has been focused towards two objectives. The first objective is to identify the effect of temperature on density and viscosity for a variety of biodiesels and also to develop a correlation between density and viscosity for these biodiesels. The second objective is to investigate and quantify the effects of density and viscosity of the biodiesels and their blends on various components of the engine fuel supply system such as fuel pump, fuel filters and fuel injector. To achieve first objective density and viscosity of rapeseed oil biodiesel, corn oil biodiesel and waste oil biodiesel blends (0B, 5B, 10B, 20B, 50B, 75B, and 100B) were tested at different temperatures using EN ISO 3675:1998 and EN ISO 3104:1996 standards. For both density and viscosity new correlations were developed and compared with published literature. A new correlation between biodiesel density and biodiesel viscosity was also developed. The second objective was achieved by using analytical models showing the effects of density and viscosity on the performance of fuel supply system. These effects were quantified over a wide range of engine operating conditions. It can be seen that the higher density and viscosity of biodiesel have a significant impact on the performance of fuel pumps and fuel filters as well as on air-fuel mixing behaviour of compression ignition (CI) engine.

    Item Type: Article
    Additional Information: Copyright © 2010 Published by Elsevier Ltd
    Uncontrolled Keywords: Biodiesel, Density, Viscosity, Blend, Fuel supply system, SMD
    Subjects: T Technology > TJ Mechanical engineering and machinery
    T Technology > TL Motor vehicles. Aeronautics. Astronautics
    Schools: School of Computing and Engineering
    School of Computing and Engineering > Automotive Engineering Research Group
    School of Computing and Engineering > Diagnostic Engineering Research Centre
    School of Computing and Engineering > Diagnostic Engineering Research Centre > Energy, Emissions and the Environment Research Group
    School of Computing and Engineering > Diagnostic Engineering Research Centre > Machinery Condition and Performance Monitoring Research Group
    School of Computing and Engineering > Diagnostic Engineering Research Centre > Measurement System and Signal Processing Research Group
    School of Computing and Engineering > Informatics Research Group
    School of Computing and Engineering > Informatics Research Group > XML, Database and Information Retrieval Research Group
    School of Computing and Engineering > Pedagogical Research Group
    Related URLs:
    Depositing User: Belachew Tesfa
    Date Deposited: 28 May 2010 09:19
    Last Modified: 10 Oct 2012 18:06
    URI: http://eprints.hud.ac.uk/id/eprint/7659

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