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Influence of the MeFo and DMC content in the fuel on the gasoline DI spray characteristics with the focus on droplet speed and size KIT IFKM
- Format:
- Book
- Conference/Event
- Author/Creator:
- Maliha, Maliha, author.
- Conference Name:
- SAE Powertrains, Fuels & Lubricants Digital Summit (2021-09-28 : Live Online, Pennsylvania, United States)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2021
- Summary:
- E-fuels can have a strong impact on the development goal of CO2-reduction. In gasoline engines, C1 oxygenate are seen as components for CO2 and emission reduction. Their changed properties can affect the fuel injection characteristics and with it the fuel mixture formation and the combustion emissions. To be able to exploit the full potential of e-fuels the knowledge of the detailed spray characteristic is necessary. The influence of oxygenate content on particle emissions seems not to be linear. To understand this correlation the spray characteristics have to be investigated in detail.E-fuels have different physical characteristics, which can influence the internal combustion process. The reduced stoichiometric air requirement leads to an increase of the injected fuel mass, which has to evaporate. This can lead to a changed fuel film interaction within the combustion chamber walls and therefore a change of particle formation. On the other hand, the oxygen content in the fuel can supress soot formation support soot oxidation and hence reduce the particle emissions. The fuel components which are investigated in this paper are dimethylcarbonate (DMC) and methylformiat (MeFo). Both are added to the base fuel Super95 in steps of 25%. Based on investigations in a pressure chamber with a stationary nitrogen atmosphere, where the spray form of DMC, MeFo and Super95 are compared, this paper focus on the droplet speed, size and spatial (?)distribution. With a phase doppler anemometry the influence of MeFo- and DMC-content on the spray droplets is characterized. In Addition to the fuel composition the fuel temperature and pressure are investigated. The spray is characterized in different distance to the nozzle and in a grid of 2mm within its spray jacket
- Notes:
- Vendor supplied data
- Publisher Number:
- 2021-01-1191
- Access Restriction:
- Restricted for use by site license
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