Burning and sooting behavior of ethanol droplet combustion under microgravity conditions

Date

2004-11-01

Author

Yozgatlıgil, Ahmet
CHOI, MUN YOUNG
KAZAKOV, ANDREI
DRYER, FREDERİCK L

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In an effort to gain a better understanding of the burning and sooting behavior of ethanol, isolated droplet combustion experiments were performed in the 2.2-s drop tower at NASA Glenn Research Center. The measurement of the burning rate, soot standoff ratio, and soot volume fraction are described in which initial droplet diameter, oxygen concentration, and ambient pressure were varied. The experiments reveal that while ethanol droplets burn in 1-atm air without soot formation, luminous radiation from soot particles is observed at higher pressures, with increased sooting at higher oxygen volume fraction. Increases in the oxygen concentration at elevated pressures results in a non-monotonic behavior in the measured soot volume fraction. These experiments provide the first quantitative measurements of the soot volume fraction for ethanol droplet burning under microgravity conditions.

Subject Keywords

Ethanol, Droplet combustion, Soot, Microgravity

URI

https://hdl.handle.net/11511/33224

Journal

COMBUSTION SCIENCE AND TECHNOLOGY

DOI

https://doi.org/10.1080/00102200490504625

Collections

Department of Mechanical Engineering, Article

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Citation Formats

A. Yozgatlıgil, M. Y. CHOI, A. KAZAKOV, and F. L. DRYER, “Burning and sooting behavior of ethanol droplet combustion under microgravity conditions,” COMBUSTION SCIENCE AND TECHNOLOGY, pp. 1985–1999, 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/33224.