ISSN -
2nd International Brazilian Conference on Tribology — vol. 2, num.2 (2014)
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Abstract
Nowadays the biodiesel use is obligate in Brazil, in order to reduce the emissions of fuel burn. However, it is important to analyze which percentage of biodiesel is necessary to keep or improve the lubricant action of fuel for diesel engine, as well which kind of biodiesel give better performance. Therefore, this work aims to analyze the parameters that keep the lubricant action of biofuels, by using the Box-Behnken design type to optimize them. In this design was evaluated the input parameters: the type of the biodiesel (soybean, sunflower and palm), the concentration (5%, 20% and 100%) and the temperature of contact (25°C, 40°C and 60°C). The analyzed output parameters were the percentage of film formation, coefficient of friction, wear scar diameter (WSD) of ball, these output parameters were obtained by HFRR tribometer and they were analyzed applying response surface methodology. With this methodology was possible to determine the simultaneous influence and the interactions between two or more independent variables investigated. The response surfaces generated for the coefficients of friction, WSD, film formation showed a higher lubricant action for higher levels of concentration of biodiesel. An increase in lubricant action was found to high and intermediate temperature.
Keywords
Biodiesel; Lubricity, Response surface methodology
How to refer
Valdicleide Silva Mello;
Salete Martins Alves.
ANALYSIS OF LUBRICANT ACTION OF BIODIESEL USING RESPONSE SURFACE METHODOLOGY
,
p. 3879-3889.
In: 2nd International Brazilian Conference on Tribology,
Foz do Iguaçu - Brasil,
2014.
ISSN: -
, DOI 10.5151/1472-5836-25540