Abstract
This experimental study reports the behavior of diesel engine while being supported by hydrogen supplement. Hydrogen supplement is added through the air intake manifold at the atmosphere condition (0 °C and 101.325 kPa). The study reports the hydrogen supplement effect on the combustion characteristics, engine performance, emission and fuel consumption. The hydrogen supplement is varied by increment of 2 LPM while keeping the engine under fixed output power condition (torque of 14.7 N-m and speed of 1,100 rpm). In order to keep the engine output power fixed, the diesel fuel consumption is reduced and the hydrogen fuel consumption e hydrogen flow rate. For same power condition (torque and speed), the study shows that hydrogen can be used to reduce diesel fuel consumption however this comes on the expense of increasing of NOx emission. The main finding of this study is that compression engine with hydrogen supplement and diesel as the primary fuel starts knocking when hydrogen form 34 % the output power contribution (or 19 % as mass ratio between hydrogen to diesel).
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Acknowledgments
The authors would like to acknowledge the support provided by United Arab Emirates University. This work is financially supported by the Faculty of Engineering at the United Arab Emirates University.
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Hamdan, M.O., Martin, P., Elnajjar, E., Selim, M.Y.E., Al-Omari, S. (2014). Diesel Engine Performance and Emission Under Hydrogen Supplement. In: Hamdan, M., Hejase, H., Noura, H., Fardoun, A. (eds) ICREGA’14 - Renewable Energy: Generation and Applications. Springer Proceedings in Energy. Springer, Cham. https://doi.org/10.1007/978-3-319-05708-8_26
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DOI: https://doi.org/10.1007/978-3-319-05708-8_26
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