Персона: Сумской, Сергей Иванович
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Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
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- ПубликацияТолько метаданныеParameters of Pressure Waves during the Rupture of Underwater Gas Pipelines(2023) Sumskoy, S. I.; Sof’in, A. S.; Zainetdinov, S. Kh.; Agapov, A. A.; Сумской, Сергей Иванович
- ПубликацияТолько метаданныеUpdating Safety Guides in the Field of Accident Risk Assessment at the Production Facilities(2023) Lisanov, M. V.; Agapov, A. A.; Zainetdinov, S. K.; Sumskoy, S. I.; Сумской, Сергей Иванович
- ПубликацияТолько метаданныеSoftware products of toxi+ line for calculation of accidents consequences and risk assessment(2020) Agapov, A. A.; Sofin, A. S.; Sumskoy, S. I.; Сумской, Сергей Иванович© 2020, STC Industrial Safety CJSC. All rights reserved.The first official version of TOXI+Risk software developed by STC «Industrial Safety» CJSC marked its ten years anniversary in April 2020. By now it become the main calculation tool for quantitative risk assessment of accidents and fire risk calculation at hazardous production facilities in the Russian Federation. TOXI+Risk is one of the products of TOXI+series, the works on which have been conducting since 1990s. The authors of the article recall the main milestones in the development of methodological and software support. Brief description is given concerning the current content of TOXI+ software series, the prospects for its development, and the activities conducted by STC «Industrial Safety» dedicated to the software. TOXI+Risk 5 software package is currently based on 26 calculation methodologies of Rostechnadzor, EMERCOM of Russia, Roshydromet, industry standards of PAO Gazprom and PAO Transneft, and it allows to simulate emergency situations asso-ciated with the cloud dispersion of hazardous substances, their combustion or explosion, fire spilled liquids, jet fire, BLEVE et al. TOXI+Water hammer software allows to simulate fluid flow in the pipeline systems of various configurations of the linear part, taking into account the difference in elevation of the route, the location and hydraulic characteristics of the elements of the pipeline system, including shutoff valves, pumps, safety valves and other devices, as well as estimate the mass of emissions of the transported substances during pipelines depressurization. TOXI+HAZOP software tool is designed to automate the paper-work during HAZOP sessions. TOXI+Forecast software allows to automate the actions of the dispatcher in an emergency: simulate accident scenarios with the spread of hazardous substances in the atmosphere when gas detectors are triggered, taking into account the current weather situation, inform the dispatcher and the interested parties about the forecast results (areas of exposure on the site plan, and poten-tially affected by them locations of people presence).
- ПубликацияТолько метаданныеOn some differences in the methodological approaches when modeling the parameters of pressure waves from combustion and detonation of fuel-air mixtures clouds(2020) Agapov, A. A.; Safonov, V. S.; Shvyryaev, A. A.; Sumskoy, S. I.; Сумской, Сергей Иванович© 2020, STC Industrial Safety CJSC. All rights reserved.The main regularities of the formation of shock air waves and air compression waves during combustion or detonation of fuel-air clouds are briefly considered in the article. Specific features are discussed related to the mathematical model of fuel-air mixture explosion, which is used in the Methodology for determining the calculated values of fire risk at the production facilities. The considered Methodology uses the same mathematical model as the corresponding Safety Guide on the assessment of the emergency explosion consequences approved by Rostechnadzor with some differences that are discussed in the article. The approach of the Methodology is based on the consideration of one-dimensional pressure waves that are formed in the atmosphere during detonation or turbulent combustion of spherical uniformly mixed clouds. For such processes the approximate dependences of pressure on the distance are built. The validity, accuracy, as well as the field of application of such dependencies are considered in the work. The conclusion is made about sufficient accuracy of the used dependencies and their good compliance to the current analogues and experiments, the provisions establishing the field of application of the extrapolation formulas for deflagration combustion are missing in the Methodology text. Due to this reason when calculating the situations are possible that at the same distance from the place of explosion of the clouds of fuel-air mixtures the pressure on the front of the detonation wave is significantly less (up to 7 times) than at the front of the deflagration waves. For deflagration combustion rates considered in the Methodology (up to 500 m/s), this result is incorrect. The reasons for this discrepancy are shown in the article. In Russia the Methodology is approved as the only document on which basis the fire risk indices are calculated, which in turn are one of the main criteria for making managerial decisions in the design and construction of industrial and social objects. It is shown that considered in the article specific features of the numerical explosion models of fuel-air mixtures cloud lead not always to the justified increase of the conservatism of the obtained results. It is noted that the indicated conservatism can be deleted by introducing appropriate limitations on the field of application of the corresponding approximations.
- ПубликацияТолько метаданныеParameters of Air Cylindrical Shock Waves(2020) Sof'in, A. S.; Zainetdinov, S. K.; Agapov, A. A.; Sumskoi, S. I.; Сумской, Сергей Иванович© 2020, Pleiades Publishing, Ltd.Abstract: In this paper, we perform a numerical analysis of the parameters of shock waves (SWs) generated during the expansion of cylindrical volumes of compressed methane. A single dimensionless approximation of the overpressure dependence on the distance is obtained using precise numerical solutions. The overpressure values in the SW are estimated for both the near and far zones. Comparison with previously developed similar dependences shows a higher accuracy of the proposed approximation, which allows predicting the consequences of accidents during the rupture of pipelines.
- ПубликацияОткрытый доступParameters of shock waves during detonation and deflagration of fuel-air clouds(2020) Sofyin, A. S.; Agapov, A. A.; Zainetdinov, S. Kh.; Sumskoi, S. I.; Сумской, Сергей Иванович© Published under licence by IOP Publishing Ltd.Methods for calculation of shock wave (SW) parameters used in industrial safety to assess the effects of explosions are considered. It is shown that existing methods do not provide the necessary accuracy of calculations. For the correct calculation of wave parameters, it is proposed to use high-accuracy CFD methods. The dimensionless dependences of pressure on distance are obtained for estimation of SW parameters, which allow to improve prediction of the effects of accidental explosions.