Model for Optimization of Extinguishing Fires of Solid Materials by Cooling.

Fires involving solid combustible materials are, as a rule, eliminated by supplying water mist onto a burning surface. Problems of current importance include determination of optimum intensity and duration of water supply to ensure successful suppression of combustion in the case of fires of various strength. This paper offers a mathematical model of optimizing the process of fire suppression for solid combustible materials. Using the heat conduction equation, an analytical solution has been obtained to determine the time for water supply to the seat of fire for its suppression, which depends on the thermophysical properties of combustible materials, the power of the heat impact of the combustion source on these materials, the time of free fire development, and the intensity of water supply. The results of the performed calculations illustrate the efficiency of solving problems of optimizing the extinguishment of fire seats involving solid combustible materials. [ABSTRACT FROM AUTHOR]