Control
parameters of flame spreading in a fuel container |
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Authors: | E Degroote |
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Institution: | (1) Technical University of Madrid, UPM, E.U.I.T. Agrícola, Dep. Ciencia y Tecnología Aplicadas, Ciudad Universitaria, Madrid, Spain, 28040 |
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Abstract: | The processes involved
in flame spreading over liquid fuels are subject of this work. A heat and
momentum transfer analysis has been undertaken for fuel temperatures below
the flash-point that confirms (within this range of temperatures studied in
this work) that flame spreading is assisted by a convection pattern ahead
of the flame. This assistance mechanism, which is not observed for solid fuels,
is the origin (for lower temperatures) of a pulsating behaviour of the flame.
A first experimental determination of the characteristic horizontal length
of this assistance zone will be given. The analysis of our data lead us to
conclude that flame spreading can be reduced by simultaneously preventing
the formation of the convection zone and reducing the fuel surface temperature. |
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Keywords: | convection pattern fire safety flame spreading liquid fuels |
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