Measurement and prediction of speeds of sound of fatty acid ethyl esters and ethylic biodiesels
authors Freitas, SVD; Santos, A; Moita, MLCJ; Follegatti-Romero, LA; Dias, TPVB; Meirelles, AJA; Daridon, JL; Lima, AS; Coutinho, JAP
nationality International
journal FUEL
author keywords Speed of Sound; Ethyl esters; Biodiesel; Wada's model; Mixing rules
keywords ISENTROPIC BULK MODULUS; DENSITY EXPERIMENTAL MEASUREMENTS; SURFACE TENSIONS; JATROPHA-CURCAS; METHYL-ESTERS; PRESSURE; COMPRESSIBILITY; TEMPERATURES; VISCOSITIES; MIXTURES
abstract Speed of sound of fatty esters provides important information about biodiesel injection characteristics and enables the estimation of many other important properties of biodiesels. Nevertheless, the experimental speeds of sound of fatty esters are very scant. This work provides new data on speed of sound for nine fatty acid ethyl esters and four ethylic biodiesels, measured at atmospheric pressure and temperatures ranging from 293.15 to 343.15 K. These new data is used to evaluate the ability of the Wada's group contribution method to predict the biodiesel speed of sound. It is here shown that this model provides excellent description of the experimental data, with overall average relative deviations (OARDs) of 0.25% for the ethyl esters and between 0.45% and 0.59% for the biodiesels. (C) 2013 Elsevier Ltd. All rights reserved.
publisher ELSEVIER SCI LTD
issn 0016-2361
year published 2013
volume 108
beginning page 840
ending page 845
digital object identifier (doi) 10.1016/j.fuel.2013.02.041
web of science category Energy & Fuels; Engineering, Chemical
subject category Energy & Fuels; Engineering
unique article identifier WOS:000317565100096
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journal impact factor 4.908
5 year journal impact factor 5.033
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