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The Droplet Group Micro-Explosions in W/O Diesel Fuel Emulsion Sprays
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1995 by SAE International in United States
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The lump-fashioned droplet group micro-explosions in water-in-diesel fuel emulsion sprays during the atomization, evaporation and combustion processes in a high-pressure, high temperature bomb were observed with a multi-pulsed, off-axis, image-plane, ruby laser holocamera and a high-speed camera. The explosions expand the volume of spray, improve the fuel-air mixing process and speed up the flame propagation. A no-water layer formed by Hills vortex was also observed in emulsion droplets. The ambient temperature has the most important influence on the occurrence and violence of the micro-explosion.
The fuel consumption and exhaust emissions with emulsions of different water fractions were studied under various operating conditions by numerical simulation and engine tests.
CitationSheng, H., Chen, L., and Wu, C., "The Droplet Group Micro-Explosions in W/O Diesel Fuel Emulsion Sprays," SAE Technical Paper 950855, 1995, https://doi.org/10.4271/950855.
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