Mathematical modeling and research of the temperature distribution of the wall thickness of specialized containers for the storage of ammunition

Abstract

The main factor in the emergence and rapid spread of such fires in storage facilities for ammunition is improper storage, as well as poor-quality fire-resistant handling of wooden containers. Therefore, in order to prevent such effects, it is necessary to conduct a study of the effect of fire-resistant treatment on the temperature field on the thickness of the wall of the wooden container in which the ammunition is stored.In this paper we research the intensity of the heat flux of a flame of fire, which is absorbed by the wooden container depending on the distance from the flame to the walls of the container, as well as the degree of blackness of its coating. Taking into account all the factors and physical parameters of container and fire, the studies conducted allow to determine the safe distance of the container to the flame of the fire depending on the intensity of the heat flow and degree of blackness of its surface, and also the distribution of temperature of the thickness of the wooden container wall, depending from the time, is investigated. The studies provide an opportunity to determine the time at which the critical temperature for handling ammunition will reach the inner surface of the container wall, which will prevent the risk of explosion and fire.The temperature distribution of the thickness of the wooden container wall for the storage of ammunition, caused by the heat flux of the fire, was investigated. It is shown that the degree of blackness of the surface of the wooden container wall greatly affects the value of the temperature field. To research the intensity of the heat flux used Stefan-Boltzmann law. We used the Laplace transformation to research the temperature distribution of the thickness of the wall of the wooden container, depending on the degree of blackness of its surface. When modeling the heating process of a wooden container wall we used the second boundary condition.