Paper
Characterization of the Viscosity of Soybean and Sunflower Biodiesel Relative to Temperature, Using Capillary Viscometers
- Authors:
- Dalni Malta do Espírito Santo Filho; Felipe de Oliveira Baldner; Paulo Lyra Simões Ferreira; Claudia Santos Cardoso de Castro; Claudio Roberto da Costa Rodrigues; Alex Pablo Ferreira Barbosa
- Abstract
- In this article we compare the viscosity-temperature behaviour of two types of biodiesel. The biofuels investigated were produced from soybean and sunflower, both transesterified with methanol. Viscosity was measured with capillary viscometers from 20 ºC to 40 ºC. Measurement uncertainty was calculated. The behaviour of the viscosity with temperature is analyzed considering the estimated uncertainty. Three mathematical models were applied to the experimental viscosity values of soybean and sunflower biodiesels as a function of temperature: a polynomial function of third degree, the Vogel equation, and the ASTM D341 equation. Results show that they all agree with the experimental data within 1% of relative deviation.
- Keywords
- Soybean Biodiesel; Sunflower Biodiesel; Capillary Viscometer; Uncertainty of Measurement
- StartPage
- 18
- EndPage
- 23
- Doi