ISSN: 1546-962X
CODEN: JAIOAD
Published Online: 12 August 2010
Page Count: 9

The Influence of the Addition of Oils in the Diesel Fuel Density

Santo Filho, Dalni Malta do Espirito
Duque de Caxias, Rio de Janeiro, Brasil

De Abreu, Fernando Luiz Barbuda
Instituto Nacional de Metrologia, Normalização e Qualidade Industrial (Inmetro)Univ. Federal Fluminense/PGMEC-UFF, Duque de CaxiasNiterói, Rio de JaneiroRio de Janeiro

Pereira, Roberto Guimarães
Univ. Federal Fluminense/PGMEC-UFF/TEM/MSG, Niterói, Rio de Janeiro

dos Santos Júnior, José Júlio Pinheiro
Instituto Nacional de Metrologia, Normalização e Qualidade Industrial (Inmetro), Duque de Caxias, Rio de Janeiro

Siqueira, José Renato Real
Instituto Nacional de Metrologia, Normalização e Qualidade Industrial (Inmetro), Duque de Caxias, Rio de Janeiro

Ferreira, Paulo Lyra Simões
Eng., Instituto Nacional de Metrologia, Normalização e Qualidade Industrial (Inmetro), Duque de Caxias, Rio de Janeiro

Barbosa, Thales de Paula
Technician, Instituto Nacional de Metrologia, Normalização e Qualidade Industrial (Inmetro), Duque de Caxias, Rio de Janeiro

Lima, Leandro Santos
Technician, Instituto Nacional de Metrologia, Normalização e Qualidade Industrial (Inmetro), Duque de Caxias, Rio de Janeiro

Baldner, Felipe de Oliveira
Eng., Instituto Nacional de Metrologia, Normalização e Qualidade Industrial (Inmetro), Duque de Caxias, Rio de Janeiro

(Received 17 October 2009; accepted 14 July 2010)

Abstract

The world is looking for changes in its energetic matrix through the use of biofuels to reduce the dependence on oil derivatives. Currently, the number of studies concerning mixtures of triglycerides from animals or plants with diesel fuel has risen due to efforts to reduce the consumption of diesel oil. This paper studies the behavior of the density of plant oils mixed with diesel fuel in relation to temperature, which is essential to guarantee engine efficiency. The density is related to the mass and to the volume being a critical property to the assessment of the subministered energy to the engine by the injection system, which behaves like a pump of positive displacement. Samples of the diesel fuel mixture were made with plant triglycerides in proportion and range of ∼5–20%. The densities of the samples were measured in a density meter with temperature varying between 18 and 25°C, as well as at 15°C, according to ASTM standard. Afterwards, the uncertainties of measurement were calculated, and the density change with respect to temperature is presented and shown in density variation curves. An analysis of the density variation curves shows that.

Keywords:
vegetable oils, density, density meter, uncertainty of measurement

Paper ID: JAI102791
DOI: 10.1520/JAI102791
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