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http://dx.doi.org/10.7731/KIFSE.2019.33.5.001

Prediction of Autoignition Temperatures of Gasoline-Ethanol Blended Fuels  

Kim, Shin-Woo (Dept. of Safety Engineering, Pukyong National Univ.)
Lee, Eui-Ju (Dept. of Safety Engineering, Pukyong National Univ.)
Publication Information
Fire Science and Engineering / v.33, no.5, 2019 , pp. 1-6 More about this Journal
Abstract
The recent development of biofuel production technology facilitates the widespread use of bioethanol and biodiesel by mixing them with fossil fuels. However, the use of these new blended fuels in combustion could result in severe safety problems, such as fire and explosion. In this study, numerical simulation was performed on the well-stirred reactor (WSR) to simulate the autoignition temperature (AIT) in homogeneous combustion and clarify the effect of ethanol addition on the AIT, the most important property for assessing the potential for fire and explosion. Response surface methodology (RSM) was introduced as a design of experiment (DOE), enabling the AIT to be predicted and optimized systematically with respect to three independent variables: ethanol mole fraction, equivalence ratio, and pressure. The results show that the autoignition temperature primarily depends on the ethanol mole fraction and pressure, while the effects of the equivalence ratio are independent of the AIT. RSM accurately predicted the experimental AIT, indicating that this method can be used to effectively predict the key properties involved in fires and explosions.
Keywords
Autoignition temperature; Response surface method (RSM); Ethanol blended gasoline;
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Times Cited By KSCI : 2  (Citation Analysis)
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