Ghosh, A and Ravikrishna, RV (2020) Spray characteristics of methanol-in-diesel emulsion. In: 14th International Conference on Liquid Atomization and Spray Systems, ICLASS 2018, 22-26 July 2018, Chicago; United States.
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The objective of this study is to investigate spray characteristics of methanol-in-diesel emulsions from a common rail diesel injection system under evaporating conditions using laser light-scattering techniques. Studies in the literature have reported that alcohol-diesel fuel blends reduce the engine emissions without any serious impact on engine performance. However, it is important to understand the effect of emulsions on the atomization and evaporation processes in sprays, which play an important role in air-fuel mixing. As methanol is immiscible with diesel, two emulsifiers, Span-80 and Tween-80 were used to make a stable emulsion of methanol and diesel. The effect of emulsion on spray characteristics is studied for various mixing ratios of methanol and diesel. Experiments were conducted in a constant volume chamber with optical access filled with nitrogen at injection pressures of 500 bar, 1000 bar and 1500 bar. During experiments, the nitrogen gas in the spray chamber is maintained at a temperature of 900 K and chamber pressure of 50 bar. The results show that liquid-tip penetration for the emulsion spray with 5 methanol has increased by around 20 as compared to that of the diesel spray. This may be attributed to the presence of the surfactants with higher boiling points than those of the fuels. © 2018 Solar Turbines Incorporated.
| Item Type: | Conference Paper |
|---|---|
| Publication: | ICLASS 2018 - 14th International Conference on Liquid Atomization and Spray Systems |
| Publisher: | ILASS |
| Additional Information: | The copyright of this article belongs to ILASS |
| Department/Centre: | Division of Mechanical Sciences > Mechanical Engineering |
| Date Deposited: | 02 Mar 2021 07:30 |
| Last Modified: | 02 Mar 2021 07:30 |
| URI: | http://eprints.iisc.ac.in/id/eprint/66626 |
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