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 fi res of various strength. This paper off ers a mathematical model of optimizing the process of fi re 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 fi re 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 fi re development, and the intensity of water supply. The results of the performed calculations illustrate the effi ciency of solving problems of optimizing the extinguishment of fi re seats involving solid combustible materials
   
Author:  N. P. Kopylov, R. A. Yailiyan, E. Yu. Sushkina, S. S. Kropotova, P. A. Strizhak
Keywords:  solid combustible material, combustion and extinguishment regimes, optimization model, cooling method
Page:  717