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Experimental Investigation on the Hydrogen Peroxide Fumigation into the Inlet Duct of a Diesel Engine
Technical Paper
2000-01-1919
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Believed to have a potential in reducing the NOx emission level, hydrogen peroxide was fumigated into the inlet duct of the AVL single cylinder research engine via a standard gasoline injector, normally used in the Volvo 850-car engine. A small metallic sphere installed 3 cm downstream the injector tip, improved the spray formation and the uniform distribution of the fumigated peroxide fluid upstream the intake valve. The hydrogen peroxide flow was varied according to the desired value via an electronic pulse frequency generator.
The engine, equipped with an electronic unit injector, was initially run without any fumigation fluid until the specifications of the engine test point were reached and remained very stable. Further, the hydrogen peroxide injection was activated with three different injection flows, and the engine performance, including emission levels, was compared to reference performance. To avoid secondary effects on combustion processes and emission levels, the engine was run with the same fuel/air ratio.
The most expected effect of the hydrogen peroxide fumigation would be on the NOx emission reduction. However, it was observed that other emissions such as CO and HC were remarkably affected as well. Experimental results have shown that the hydrogen peroxide fumigation affects the engine thermochemistry, but not necessarily the fuel consumption and other energetic parameters of the engine. However, the increase of the fumigation flow above a certain limit could deteriorate the combustion quality, thereby increase HC, CO and soot formation levels.
Nevertheless, heat release and ignition delay, (evaluated according to the “Dragon” software program and acquisition from “Burst to File” PC based sampling system)[1], [3] show that the optimal fumigated flow of the hydrogen peroxide might reduce the ignition delay, and thereby significantly improve the engine thermochemistry output.
Verified effective possibilities for using hydrogen peroxide fumigation, would lead to a proper version of the intake manifold design, which would bring to another solution for low emission level diesel engines
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Gjirja, S., Olsson, E., Olsson, L., and Ekman, S., "Experimental Investigation on the Hydrogen Peroxide Fumigation into the Inlet Duct of a Diesel Engine," SAE Technical Paper 2000-01-1919, 2000, https://doi.org/10.4271/2000-01-1919.Data Sets - Support Documents
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References
- Gjirja, S. “Engine Design Optimization, a Practical Technology for Optimum Performance and Emissions of a Ethanol Fuelled Engine” Paper No 97EL008, International Conference Proceedings, 30-th ISATA Florence, Italy 1997
- Gjirja, S. Olsson, E. Karlström, A. “Ether Fumigation, a New Alternative for the Neat Ethanol Diesel Engine” Paper No 98EL008, International Conference Proceedings, 31.st ISATA, Clean Power Sources & Fuels Dusseldorf, Germany 1998
- Gjirja, S. Olsson, E. Karlström, A. “Considerations on Engine Design and Fuelling Technique Effects on Qualitative Combustion in Alcohol Diesel Engines SAE No 982530 , International Fall Fuels & Lubricants Meeting and Exposition San Francisco, California, USA 1998
- Gjirja, S. Olsson, E. “Investigation on Methanol Engine with DME Fumigation” Paper No 99CPE007 International Conference Proceedings, 32 nd ISATA Vienna Austria 1999