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Type: Artigo de periódico
Title: Measurement and prediction of speeds of sound of fatty acid ethyl esters and ethylic biodiesels
Author: Freitas, SVD
Santos, A
Moita, MLCJ
Follegatti-Romero, LA
Dias, TPVB
Meirelles, AJA
Daridon, JL
Lima, AS
Coutinho, JAP
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.
Subject: Speed of Sound
Ethyl esters
Wada's model
Mixing rules
Country: Inglaterra
Editor: Elsevier Sci Ltd
Rights: fechado
Identifier DOI: 10.1016/j.fuel.2013.02.041
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

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