Measurement and prediction of high-pressure viscosities of biodiesel fuels
authors Freitas, SVD; Segovia, JJ; Martin, MC; Zambrano, J; Oliveira, MB; Lima, AS; Coutinho, JAP
nationality International
journal FUEL
author keywords Biodiesel; Viscosity; High-pressure; Grundberg-Nissan rules; Biodiesel-diesel blends
abstract Nowadays common rail injection systems use high pressures to pump the fuel, even if at these conditions the liquid viscosity increases substantially over atmospheric levels. For the proper operation of these injection systems the knowledge of fuels high-pressure viscosities becomes crucial to optimize the engine performance. This work reports new experimental data of high-pressure viscosities for three biodiesels (soybean, rapeseed and their binary mixture) measured at temperatures from 293.15 K to 393.15 K and pressures from atmospheric up to 140 MPa, and proposes a correlation capable of describing the experimental data. The predictions results are excellent for the biodiesels studied, presenting overall average relative deviations (OARD) of only 3.9% in the entire ranges of pressures and temperatures studied. This correlation was also extended to describe the viscosities of biodiesels mixtures with diesel with an OARD of just 3.3%. (C) 2014 Elsevier Ltd. All rights reserved.
issn 0016-2361
year published 2014
volume 122
beginning page 223
ending page 228
digital object identifier (doi) 10.1016/j.fuel.2014.01.031
web of science category Energy & Fuels; Engineering, Chemical
subject category Energy & Fuels; Engineering
unique article identifier WOS:000331544100025
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journal impact factor (jcr 2016): 4.601
5 year journal impact factor (jcr 2016): 4.726
category normalized journal impact factor percentile (jcr 2016): 86.946
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