SYMPOSIA PAPER Published: 01 January 2011
STP49364S

Characterization of Density of Biodiesel from Soybean, Sunflower, Canola, and Beef Tallow in Relation to Temperature, Using a Digital Density Meter with a Metrological Point of View

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In this article we study the behavior of biodiesel density from soybean oil, sunflower oil, canola oil, and beef tallow, the last one transesterified with ethanol and the others with methanol in relation to temperature with a metrological point of view. These quantities were measured with a digital density meter, one of the Brazilian density standards, in a temperature range between 15 and 40°C. Measurement uncertainty was calculated. The behavior of density is analyzed considering the estimated uncertainty. The density from all the samples investigated shows a linear behavior with respect to temperature.

Author Information

Filho, D., M. E. Santo
UFF—Universidade Federal Fluminense, Rio de Janeiro, R.J., Brazil
de Abreu, F., L. B.
UFF—Universidade Federal Fluminense, Rio de Janeiro, R.J., Brazil
Pereira, R., G.
UFF—Universidade Federal Fluminense, Rio de Janeiro, Brazil
Siqueira, J., R. R.
Inmetro—Instituto Nacional de Metrologia, Normalização e Qualidade Industrial, Duque de Caxias, R.J., Brazil
dos Santos Júnior, J., J. P.
Inmetro—Instituto Nacional de Metrologia, Normalização e Qualidade Industrial, Duque de Caxias, R.J., Brazil
Daroda, R., J.
Inmetro—Instituto Nacional de Metrologia, Normalização e Qualidade Industrial, Duque de Caxias, R.J., Brazil
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Developed by Committee: D02
Pages: 376–383
DOI: 10.1520/STP49364S
ISBN-EB: 978-0-8031-8677-4
ISBN-13: 978-0-8031-3411-9