Autoignition Process in Compression Ignition Engine Fueled by Diesel Fuel and Biodiesel with 20% Rapeseed Biofuel in Diesel Fuel
Publication: Journal of Energy Engineering
Volume 144, Issue 5
Abstract
Controlled autoignition delay is considered a very promising new technology, having the potential of combining low fuel consumption with low pollutant emissions. In this study, the effect of pure diesel fuel and biodiesel B20 (20% rapeseed oil mixed with 80% diesel fuel, by volume) on ignition delay period, at different engine speeds, under full load operating conditions, has been investigated experimentally and numerically. For this purpose, two models were proposed. The experimental results were compared with the ignition delay predicted by some correlations and by the considered models. The results showed that the ignition delay period of biodiesel B20 is shorter than that of pure diesel fuel at similar operating conditions. Regarding pure diesel fuel, the ignition delay periods are in good accordance with Arrhenius type correlations, whereas for biodiesel B20 the correlation results are significantly different than the experimental data.
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Acknowledgments
The authors of this paper acknowledge the AVL advanced simulation technologies team for the support they have offered in performing the simulation part of this study. One of the authors (M.A) wants to thanks the Iraqi government for its financial support.
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Published In
Journal of Energy Engineering
Volume 144 • Issue 5 • October 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Oct 30, 2017
Accepted: Mar 16, 2018
Published online: Jun 28, 2018
Published in print: Oct 1, 2018
Discussion open until: Nov 28, 2018
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