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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Fuchihata, Manabu Takeda, Shuko Ida, Tamio |
| Copyright Year | 2007 |
| Abstract | Microexplosions of light oil-water emulsified fuel droplets were successfully documented using a high-speed video camera with laser illumination. The local frequency of the explosion occurrence, temperature profile and exhaust gas emissions were measured in spray flames of water-in-oil type emulsion formed using an air-assist atomizer with a ring pilot burner. Those results indicate that the flame structure changes as the water droplet diameter in the emulsion fuel was varied, even if the fuel components and their fractions were same. When the fuel includes the water droplet, whose median diameter was about 75μm, HC and CO emission were reduced as compared to those for the fuel of smaller water droplet content. It is probable that if the water droplet diameter is uniform, avalanching microexplosions occur at certain local region in the flame, and the water content vaporizes almost at once and extinguishes the flame. It leads to HC and CO emission increase. When the water droplet diameters are large, atomizer atomizes those; therefore, emulsion droplets include various size of water droplet in the flame. Consequently, the avalanching microexplosion occurrence is avoided, and HC and CO emissions are reduced. |
| Sponsorship | Heat Transfer Division |
| Starting Page | 601 |
| Ending Page | 604 |
| Page Count | 4 |
| File Format | |
| ISBN | 0791842746 |
| DOI | 10.1115/HT2007-32737 |
| e-ISBN | 0791838013 |
| Volume Number | ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference, Volume 1 |
| Conference Proceedings | ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference |
| Language | English |
| Publisher Date | 2007-07-08 |
| Publisher Place | Vancouver, British Columbia, Canada |
| Access Restriction | Subscribed |
| Subject Keyword | Water Flames Emulsions Lasers Sprays Drops Video cameras Explosions Temperature profiles Fuels Emissions Exhaust systems |
| Content Type | Text |
| Resource Type | Article |
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