Abstract
This paper represents the laboratory research results on the interaction of smoldering pine bark particles with pine wood. Fire retardant treatment FUKAM was studied to estimate its effect on the probability of wood ignition. The wind speed and the number and geometric sizes of particles were varied in the experiments. The results have shown that the increase in the wind speed leads to the increase in the probability of wood ignition by the particles of the same size, and fire-retardant treatment significantly increases the protective properties of wood exposed to smoldering pine bark particles.
Highlights
IntroductionThe works [2, 3] report that the production of smoldering particles is a process in which the combustible materials, such as shrubs, trees and building materials are heated and separated into smaller smoldering particles during a fire
The main factors influencing on the ignition of construction materials and the propagation of fires in natural and urban areas are the radiative and convective heat transfer from fire, as well as the smoldering particles which can accumulate on the roof, in the corners of buildings, near fences or indoors, which may result in the ignition of buildings [1].The works [2, 3] report that the production of smoldering particles is a process in which the combustible materials, such as shrubs, trees and building materials are heated and separated into smaller smoldering particles during a fire
For the chosen parameters of the experiment the pine wood samples treated with the means "FUKAM" were resistant to the exposure of smoldering pine bark particles and a wind speed
Summary
The works [2, 3] report that the production of smoldering particles is a process in which the combustible materials, such as shrubs, trees and building materials are heated and separated into smaller smoldering particles during a fire. After that the particles are transported from the fire by a convective column, initiate spot fires and cause the ignition of residential and industrial buildings. The goal of this work is to study the ignition of preheated wood samples exposed to smoldering natural wood particles, as well as the effect of a fire-retardant coating on the fire hazard characteristics of wood.
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