№ 13

A.A. Kuzmin, Ph.D. of Pedagogic Sciences, Docent; N.N. Romanov, Ph.D. of Engineering Sciences, Docent; A.A. Permyakov, Ph.D. of Pedagogic Sciences
Saint-Petersburg university of State fire service of EMERCOM of Russia

We investigated factors affecting the combustion products diffusion processes intensity in polymeric heat-insulating materials under fire conditions.

We disclosed the content of activation and fluctuation approaches to the description of combustion products diffusion process in polymeric materials. We identified the effect of polymeric materials vitrification process on diffusion processes intensity. We analyzed interaction mechanisms of combustion products with polymeric materials.

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A.V. Kalach², Holder of an Advanced Doctorate in Chemical Sciences, Full professor; E.V. Kalach², Ph.D. of Engineering Sciences, Docent, A.M. Cherepahin^1
1Federal state-funded educational institution of the higher education “Voronezh state technical university” (VSTU)
²The Voronezh Institute – the affiliate of Ivanovo fire and Rescue Academy of State Firefighting Service of EMERCOM of Russia

Questions of improvement of a method of calculation of fire hazard of the gas mixtures based on tetrachlormethane addressing on objects of an oil and gas complex are considered. Authors installed the mechanism of formation of dangerous factors of the fire when using of the mixed combustible environment on objects of an oil and gas complex, expressions are found and approximation of fire hazard (with an accuracy evenly best of all than 1.5%) by means of elementary functions is executed.

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A.V. Vasilyev, Ph. D. of Engineering Sciences; A.N. Lagunov, Ph. D. of Pedagogic Sciences
FSBEE HE Siberian Fire and Rescue Academy EMERCOM of Russia

The problems of handling and disposal of radioactive waste (RW) accumulated over decades of weapons-grade plutonium production in the USSR are described in the article. The disadvantages of the current facility for RW vitrification in the ceramic melter EP-500 at the “Mayak” (Chelyabinsk region) are noted. The advantages of microwave energy as a heat source are listed. The current state of the use of RW conditioning technology using microwave energy in different countries of the world is analyzed. The developed technological parameters of the semi-industrial microwave unit presented by a team of employees of the Mining and chemical combine (Zheleznogorsk) and a number of Russian research laboratories for RW vitrification of the sludge stored in the MCC tanks.

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V.V. Kharin; E.V. Bobrinev, Candidate of Biological Sciences, Senior Researcher; E.Yu. Udavtsova, Candidate of Technical Sciences; A.A. Kondashov, Candidate of Physical and Mathematical Sciences
FGBU VNIIPO EMERCOM of Russia

The results of the analysis of the influence of a number of factors contributing to the death and injury of people in fires, in order to assess their impact on the consequences of fires in cities and rural areas Analyzed the dependence of death and injury of people in fires from the time of arrival of the first fire Department to the A comparison of the number of deaths and injuries in fires in 2016-2018 in cities with similar data in rural areas. The influence of the physiological state of people on the consequences of fires is considered. The main factors that increase the risk of death and injury in fires are identified. Ways to reduce the risk of death in fires are discussed.

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A. Minkin^1,2, Doctorate of Engineering., docent; A. Krehov¹, Postgraduate student; S. Klochkov¹, Doctorate of Physics and Mathematics, docent
¹FSAEI HE Siberian Federal University
²FSBEI HE Siberian Fire and Rescue Academy EMERCOM of Russia

The article presents a method of explosion protection of drying installations of dispersed materials, which consists in using equipment capable of withstanding the full explosion pressure of a combustible mixture. It discloses a method for reducing the maximum pressure of an explosion by reducing the size of drying units is considered. The process of extinguishing the flame in narrow channels. The article considers in detail the conditions for the exchange of radiation energy between bodies and the estimation of heat loss by radiative flame exchange in a closed volume. It also obtains an expression for determining the pressure of an explosion in a closed volume with allowance for heat losses.

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A. Krehov¹, Postgraduate student; Y. Bezborodov¹, Senior Doctorate of Engineering, full professor; S. Klochkov¹, Doctorate of Physics and Mathematics, docent; A. Minkin^1,2, Doctorate of Engineering
¹FSAEI HE Siberian Federal University
²FSBEI HE Siberian Fire and Rescue Academy EMERCOM of Russia

The article discusses the mathematical and computer models of heat flow control sensor application to the explosive concentration of the gas-air mixture.

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A. Krehov¹, Postgraduate student; Y. Bezborodov¹, Senior Doctorate of Engineering, full professor; S. Klochkov¹, Doctorate of Physics and Mathematics, docent; A. Minkin^1,2, Doctorate of Engineering
¹FSAEI HE Siberian Federal University
²FSBEI HE Siberian Fire and Rescue Academy EMERCOM of Russia

The article discusses the mathematical and computer models of heat flow control sensor application to the explosive concentration of the gas-air mixture.

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