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Scientia Agriculturae Bohemica

The Journal of Czech University of Life Sciences Prague

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Effect of the Rapeseed Oil Methyl Ester Component on Conventional Diesel Fuel Properties

V. Kumbár / J. Votava
Published Online: 2015-01-29 | DOI: https://doi.org/10.1515/sab-2015-0006


The effect of the rapeseed oil methyl ester (RME) component in diesel fuel was assessed. Dynamic viscosity and density of blends were particularly observed. Measurements were performed at standard constant temperature. Increasing ratio of RME in diesel fuel was reflected in increased density value and dynamic viscosity of the blend. In the case of pure RME, pure diesel fuel, and the blend of both, temperature dependence of dynamic viscosity and density was examined. Considerable temperature dependence of dynamic viscosity and density was found out and demonstrated for all three samples. This finding is in accordance with theoretical assumptions and literature data sources. Mathematical models were developed and tested. Temperature dependence of dynamic viscosity was modelled using the 3rd degree polynomial. Temperature dependence of density was modelled using the 2nd degree polynomial. The proposed models can be used for flow behaviour prediction of RME, diesel fuel, and their blends.

Keywords: biofuel; density; viscosity; modelling


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About the article

Received: 2014-02-04

Accepted: 2014-05-07

Published Online: 2015-01-29

Citation Information: Scientia Agriculturae Bohemica, Volume 45, Issue 4, Pages 254–258, ISSN (Online) 1805-9430, ISSN (Print) 1211-3174, DOI: https://doi.org/10.1515/sab-2015-0006.

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© 2014 V. Kumbár and J. Votava. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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