Experimental Investigation on the Characteristics of Sprays Representative for Large 2-Stroke Marine Diesel Engine Combustion Systems 2015-01-1825
Fuel spray propagation and its morphology are important aspects for the in-cylinder mixture preparation in Diesel engines. Since there is still a lack of suitable measurements with regard to large 2-stroke marine Diesel engines combustion systems, a comprehensive data set of spray characteristics has been investigated using a test facility reflecting the specific features of such combustion systems. The spray penetration, area and cone angle were analysed for a variation of gas density (including the behaviour at evaporation and non-evaporating conditions), injection pressure and nozzle diameter. Moreover, spray and swirl flow interaction as well as fuel quality influences have been studied. To analyse the impacts and effects of each measured parameter, an empirical correlation for the spray penetration has been derived and discussed for all measurements presented.
Citation: von Rotz, B., Herrmann, K., and Boulouchos, K., "Experimental Investigation on the Characteristics of Sprays Representative for Large 2-Stroke Marine Diesel Engine Combustion Systems," SAE Technical Paper 2015-01-1825, 2015, https://doi.org/10.4271/2015-01-1825. Download Citation
Beat von Rotz, Kai Herrmann, Konstantinos Boulouchos
Winterthur Gas & Diesel Ltd., Paul Scherrer Institute, ETH Zurich
JSAE/SAE 2015 International Powertrains, Fuels & Lubricants Meeting