Wärme‐ und Stofftransport in Tankflammen

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Abstract
Heat and mass transfer in pool flames. Theoretical and experimental concept of heat and mass transport in liquid pool flames are reviewed. The heat and mass transfer processes in the interface between flame and liquid fuel are outlined, and the concept of the burning rate as a parameter for the quantitative description of a pool fire is discussed. The methods of calculation and experimental results concerning flame length and flame shape as well as buoyancy forces are described. In pool flames, a lower region (flame neck) and an upper region (flame plume) are distinguishable. Both the flame neck and the flame plume show a flow pattern obtained from short or long periods of observation. The flow patterns of the flames have been measured by the techniques of equidensitometry and Laser‐synchronous‐interferometry. The flow pattern observed over a short period of time gives an insight into the eddy field of the pool flame whose turbulence is measured. The flow pattern observed over a long time is obtained from time averaged values of temperature, heat radiation, concentration etc.

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