Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
ANALYSIS OF THE IGNITION DELAY OF THE BIODIESEL ON FUEL IGNITION TESTER -FIT
Submission Author:
Luciano Batista , RJ
Co-Authors:
Monizi Couto Lima, Paulo Couto, Paulo Lyra, Jackson Oliveira, Luciano Batista
Presenter: Monizi Couto Lima
doi://10.26678/ABCM.ENCIT2018.CIT18-0666
Abstract
The purpose of this article was analyzed the behavior of the combustion and ignition delay obtained in Fuel Ignition Tester (FIT) to biodiesel and compares it with the n-heptane behavior in the same conditions. Two methods were used to determine the ignition delay (automatically by FIT and a the derivative method) and five different temperatures were used. The results showed the two methods present comparable results and the more sensibility of the biodiesel combustion with the temperature increase. In simple words, the ignition delay is more affected by temperature of biodiesel than heptane samples. These preliminary results are important because small temperature changes can generate wrong results of ignition delay and the derivative cetane number (DCN) for biodiesel samples. Observing the behavior of combustion curve shows that final pressure of combustion of both fuel was similar but the combustion velocity is lower for biodiesel than n-heptane. The next steps include the detailed studied of combustion curves for biodiesel in different temperatures.
Keywords
biodiesel, fuel ignition quality, ignition delay
