EXTREME SITUATIONS AT FACILITIES OF THE FUEL AND ENERGY COMPLEX: ASSESSMENT OF THE RISK OF HUMAN INJURY

Abstract

Problem statement. The task of assessing the zones of human damage in the event of an extreme situation at a gas station located in a crowded place in the city of Dnipro is under consideration. An analysis of the size of thermal air pollution zones and the zone of possible injury to people in the event of flying debris, created in the event of an extreme situation at a gas station, is being carried out. To solve the problems of this class, the development of specialized mathematical models is required. The purpose of the article. Assessment of the risk of injury to a person from the throwing action of debris and in the event of a fire at a gas station in the event of an emergency situation. Methodology. A numerical model based on the integration of Newton's second law for the movement of a material point in the air is used to analyze the damage zones during the flight of fragments. A computer program was created on the basis of this numerical model. Numerical integration of the energy equation is used to analyze thermal pollution zones during a fire at a gas station. This equation takes into account the speed of movement of air masses, coefficients of thermal conductivity, air temperature at the site of the fire. Scientific novelty. An effective numerical model has been developed for the analysis of damage zones from the throwing action of debris, which are formed in the event of an extreme situation at a gas station. Damage zones in the event of a possible fire at a gas station located in the city of Dnipro have been determined. Practical significance. A program has been developed for calculating the dynamics of the movement of debris in the air, which are formed in an extreme situation at a gas station. This makes it possible to determine the damage zones from the throwing action of fragments of different sizes. Zones of thermal air pollution are defined, which allow to assess the risk of thermal damage to people. Conclusions. An effective tool for analyzing the risk of injury to people in the event of flying debris and a fire at a gas station has been developed. The results of computational experiments are presented.