Please use this identifier to cite or link to this item:
https://repositorio.ufba.br/handle/ri/15347
metadata.dc.type: | Artigo de Periódico |
Title: | Prediction of properties of biodiesel-diesel blends using spectrofluorimetry and multivariate calibration |
Other Titles: | Central European Journal of Chemistry |
Authors: | Pepe, Iuri Muniz Quintella, Cristina Maria Assis Lopes Tavares da Mata Hermida Tanajura, Alessandra dos Santos Silva, Humbervânia Reis Gonçalves da Meira, Marilena |
metadata.dc.creator: | Pepe, Iuri Muniz Quintella, Cristina Maria Assis Lopes Tavares da Mata Hermida Tanajura, Alessandra dos Santos Silva, Humbervânia Reis Gonçalves da Meira, Marilena |
Abstract: | Regressions based on fluorescence spectroscopy were developed to provide relatively inexpensive and rapid measurements of the concentration, viscosity, and specific gravity of biodiesel-diesel blends. The methods involved obtaining a mathematical model from spectrofluorimetric data and data from a given property (concentration, dynamic viscosity, or specific gravity) using partial least squares (PLS) regression, which was then applied as a model for predicting properties of interest. The predicted concentrations, dynamic viscosities, and specific gravities of the biodiesel-diesel blends were compared with actual values and agreed reasonably well with the obtained results. The models showed high correlation between real and predicted values. The R-square values near 1 indicated excellent model accuracy for predicting concentrations, specific gravities, and dynamic viscosities of biodiesel-diesel blends. The residual distribution did not follow a trend with respect to the predicted variables, indicating an excellent fit to the data. |
Keywords: | Concentration Specific gravity Viscosity Spectrofluorimetry Multivariate calibration |
metadata.dc.rights: | Acesso Aberto |
URI: | http://repositorio.ufba.br/ri/handle/ri/15347 |
Issue Date: | 2012 |
Appears in Collections: | Artigo Publicado em Periódico (Química) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Iuri M. Pepe.pdf | 849,04 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.