Influence of Vegetable Oil in the Viscosity of Biodiesel – A Review

2008-36-0170

10/07/2008

Event
2008 SAE Brasil Congress and Exhibit
Authors Abstract
Content
Viscosity is a measure fluid resistance to flowing, affecting the fuel spray in the combustion chamber and, by this way, thus the formation of carbon deposits. The analysis of the influence of vegetable oil viscosity in biodiesel seems appropriate, because biodiesel viscosity is a function of vegetable oil. The increase of the fuel viscosity, promoted by biodiesel, has a major impact on the dynamics of jet fuel, increasing its speed and distance of penetration, obtaining therefore an increase in the amount of turbulent movement of the jet and thus an increase in the rate of preparation of the mixture, air-fuel, when adding biodiesel to diesel oil. The negative effect of this higher fuel viscosity is the increase of the wear of the train of gears, cam shaft, and valve push rod of all the injection pumps due to the higher pressure of injection. The viscosity of biodiesel is influenced by the size of its molecule and by the increase of molecule insaturations, is directly related with its origin vegetable oil or fat. This study is a review of the influence of vegetable oils in viscosity of biodiesel.
Meta TagsDetails
DOI
https://doi.org/10.4271/2008-36-0170
Pages
13
Citation
Tsuji, F., and Neto, L., "Influence of Vegetable Oil in the Viscosity of Biodiesel – A Review," SAE Technical Paper 2008-36-0170, 2008, https://doi.org/10.4271/2008-36-0170.
Additional Details
Publisher
Published
Oct 7, 2008
Product Code
2008-36-0170
Content Type
Technical Paper
Language
English