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    Flame Spread over Binary Mixed Liquid Fuels—Super-Flash/Super-Flash Mixed Condition

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    Date
    2015-12
    Author
    Sasaki, Koichiro
    Ito, Akihiko
    Torikai, Hiroyuki
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    Abstract
    In this study, we investigate the flame spread characteristics of binary mixed liquid fuels that are both in super-flash condition. We propose a method for estimating flashpoint and flame spread rate for binary mixed liquid fuels from binary vapor concentration distribution and compare these estimated values with experimental results. In addition, we measure the flame height and center of the flame leading edge for binary mixed liquid fuels. The results show that, when the flashpoint of each single fuel is known, the flashpoint of the binary mixed liquid fuel can be calculated. Moreover, the fuel that most influence combustion changes near the intersection of vapor concentration distribution in accordance with Raoult’s law. Photographs of the flame indicate discontinuity. We can calculate flame spread rate by using the ratio of each diffusion coefficient to judge equivalently. Finally, it is found that the flame height and center of flame leading edge are proportional to total vapor concentration of the binary mixed liquid fuels.
    URI
    http://dx.doi.org/10.4236/ojsst.2015.54012
    http://hdl.handle.net/123456789/1890
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