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Abstract

Through a review of available data for radiation from large pool fires to external targets, a procedure for predicting the incident radiant flux to a target outside the flame is devel oped. The procedure is based on the classic cylindrical flame shape assumption and uses the flame height expression developed by Heskestad. The 'effective' emissive power of the flame is found through direct comparison of model predictions with experi mental data. The 'effective' emissive power is found to decrease with increasing pool diameter. The results are compared to the method of Mudan and Croce described in the SFPE Handbook of Fire Protection Engineering, and the present method is shown to pro vide more accurate predictions of radiant heat flux from large pool fires. A complete pro cedure for determining radiative heating of a target subjected to radiation from a pool fire is presented.

The Orloff and deRis model for radiative heat transfer from the flame to the pool surface is clarified and simplified.

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References

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Radiation from Large Pool Fires

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