The Exxon Valdez oil spill emergency has shown that simulation of oil spills trajectory is the main action in planning response measures. Modeling the trajectory of the oil slick allows predicting in advance the direction of the motion of the stain, the time it will take to reach the shore and assess the possible environmental consequences for the contaminated coastal zone. In this paper, the Exxon Valdez oil spill trajectory was analyzed using two different models, the GNOME model and the HAZAT trajectory model. Conclusions are drawn about the reasons for the differences in the results provided by the two models. The accuracy of the simulation is strongly related to the input of geographic and meteorological data. In addition, ADIOS software was used to predict the weathering process of the modeled emergency event. It was found that the main factors influencing the change in the physical and chemical characteristics of oil dispersed in the water body are the wind speed and direction, water temperature and wave height.

Research objective: Scientific substantiation and development of an algorithm for selecting reservoir fire protection measures based on the big breathing (filling loss) quantitative assessment. Method of research: Theoretical generalization and analysis of approaches for choosing big breathing volume calculating methods, comparative analysis of modern methodological approaches for tank breaths quantitative assessment, as well as using methods for calculating BLEVE effect probability. Results of the study: Analysis of approaches for choosing methods showed that each method has its own calculation specifics, which are reflected in results. Using a comparative analysis of methodological approaches was determined that volumes of big breathing calculated for each method differ by more than 30%. In this regard, algorithm for choosing calculation methods with further forecasting of fire situation is proposed. The algorithm consists of three stages. At the beginning, it is necessary to calculate the filling loss volume, on the basis of them the level of damaging factors is carried out. Depending on the possible situation, protective measures are choosing.

Objective: To ensure industrial safety for autogas filling stations operated in town, analyzing the current status of the issue and identifying accident causes are performed. Methods: It is shown that most motor vehicles are not designed to use liquefied gas as a fuel and consequently converted to fit gas cylinders for using liquefied petroleum gases (LPG) making the hazard to people much higher and contributing to autogas filling station chain growth. As the filling station process involves highly flammable gases, such facilities may be referred to as fire and explosion hazardous. Results: Making a selection of a typical autogas filling station based on systems analysis methods and also approved methods, an emergency is simulated with a gas-air mixture explosion in implementing a worst-case scenario (LPG escape resulting from a destroyed tank truck forming a primary gas-vapor cloud with the gas-air mixture exploding): injurious effects and potential impact are assessed. It is identified that within a 50 m radius there is a risk that people may be affected and also that buildings and structures placed in close vicinity to it be damaged, which causes a special threat if located close to other autogas filling stations. As one of the primary goals for safe operation of autogas filling stations is keeping rated operating conditions for process equipment components, a number of early preventive measures has to be taken, which would allow avoiding any emergencies. Practical importance: Following the patent study, a dusty cloud generation device based on an explosion overpressure triggering mechanism for explosion containment is contemplated and proposed and its location and operating conditions are recommended, which will make the facility better protected from fire and explosion hazards.

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