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Model of large pool fires

Fay, J. A.

Journal of Hazardous Materials

Cilt: 136, Sayı: 2, 219-232, 2006/08/21

A two zone entrainment model of pool fires is proposed to depict the fluid flow and flame properties of the fire. Consisting of combustion and plume zones, it provides a consistent scheme for developing non-dimensional scaling parameters for correlating and extrapolating pool fire visible flame length, flame tilt, surface emissive power, and fuel evaporation rate. The model is extended to include grey gas thermal radiation from soot particles in the flame zone, accounting for emission and absorption in both optically thin and thick regions. A model of convective heat transfer from the combustion zone to the liquid fuel pool, and from a water substrate to cryogenic fuel pools spreading on water, provides evaporation rates for both adiabatic and non-adiabatic fires. The model is tested against field measurements of large scale pool fires, principally of LNG, and is generally in agreement with experimental values of all variables.

Anahtar Kelimeler: Pool fire; Entrainment model; Grey gas model; Thermal radiation; LNG

Elsevier B. V.

DOI: 10.1016/j.jhazmat.2005.11.095

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