Combustion of Interacting Two Droplets in an Electric Field under Microgravity

Effects of DC electric fields on combustion of droplet pairs were investigated experimentally under Microgravity condition. Fiber-supported n-octane droplets with initial diameters of about 0.7 mm were studied in air at normal atmospheric conditions, with electric field intensities up to 55 kV/m. Fl...

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Published inNihon Kikai Gakkai rombunshuu. B hen Vol. 16; no. 7; pp. 1842 - 1848
Main Authors Okai, K, Imamura, O, Tsue, M, Kono, M, Sato, J, Dietrich, D L, Williams, F A
Format Journal Article
LanguageJapanese
Published 01.07.2004
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Summary:Effects of DC electric fields on combustion of droplet pairs were investigated experimentally under Microgravity condition. Fiber-supported n-octane droplets with initial diameters of about 0.7 mm were studied in air at normal atmospheric conditions, with electric field intensities up to 55 kV/m. Flames around single droplets are elongated mainly towards the negative electrode, and soot particles are emitted towards both electrodes but mostly towards the negative electrode. Droplet pairs with merged flames were found to behave similarly, but with separated flames the droplet nearest the negative electrode appears to experience electric wind, while the droplet nearest the positive electrode does not. The electric wind appears to increase the burning rate of the droplet.
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SourceType-Scholarly Journals-1
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ISSN:0387-5016