Abstract
The reduction of greenhouse gases in the transport sector is fundamental for reaching the European climate goals. Shipping is responsible for about 2-3 percent of the global CO2 emissions, depending on the world trade with an increasing trend. Hence, the International Maritime Organization (IMO) is forcing an emission reduction until year 2050 of at least 50% based on emissions from year 2008.
One solution to this problem could be the use of CO2-neutral fuels in conventional internal combustion engines (ICE). Especially synthetic fuels based on hydrogen from renewable energy and carbon dioxide are attractive for a use in ICEs due to their unlimited availability and customizable properties. In the framework of the public founded research project “ISystem4EFuel” such “e-fuels” were tested with respect to their usability in large ship engines at Rostock University and FVTR GmbH.
Two promising e-fuels were chosen and investigated as blend components with reference EN 590 diesel in injection chamber and single-cylinder engine tests: oxymethylenether (OME) and paraffinic diesel (HVO). A prototype injector from Woodward L’Orange GmbH that is able to measure control chamber pressure was used to get additional information about fuel impacts on needle dynamic.
Results showed drop-in quality of HVO-blends with negligible impact on injection control and positive effects in terms of decreased ignition delay and reduced soot emission. OME-blends were significantly affecting the injection control and the needle dynamic due to their lower heating values. OME-blends showed superior soot emission behavior at slightly increased NOx emissions.
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Stengel, B., Pinkert, F., Swiderski, E., Reißig, M., Buchholz, B. (2021). Impacts of E-Fuels on Injection, Combustion and Emissions in a Large Diesel Engine. In: Liebl, J. (eds) Heavy-Duty-, On- und Off-Highway-Motoren 2020. Proceedings. Springer Vieweg, Wiesbaden. https://doi.org/10.1007/978-3-658-34362-0_14
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DOI: https://doi.org/10.1007/978-3-658-34362-0_14
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