Сергій Ємельяненко
@en.ldubgd.edu.ua
Department of organization of scientific and research activities
Lviv State University of Life Safety
RESEARCH, TEACHING, or OTHER INTERESTS
Safety Research, Social Sciences, Safety Research
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Sergiy Yemelyanenko, Andriy Kuzyk, Andriy Ivanusa, Danyil Behen, Roman Koval, and Yevhen Morshch
Private Company Technology Center
The object of the study is the functioning of control centers during emergencies. Ukraine has faced large-scale emergency events caused by Russian aggression. The experience of crisis management in emergency events showed the need to find new solutions and improve the activities of emergency management centers at the State Emergency Service of Ukraine and GIS technologies in decision-making support systems. The curent paper has formulated a conceptual model of the work of emergency management centers at the Emergency Service of Ukraine; based on it, their main functions were formed. Identification of risks for objects that carry potential danger was carried out and a block diagram of object risk assessment was developed to improve the work of emergency control centers at the State Emergency Service of Ukraine. An approximate list of software and online resources for the operation of emergency management centers at Emergency Service of Ukraine is provided, which makes it possible to summarize the risks that are present in the given territory, isolate them, and pay special attention to prevent possible consequences from them. Based on the computer software MARPLOT, CAMEO, and ALOHA, an example of response to an emergency event was described. In this case, the weather conditions, physico-chemical parameters of the dangerous substance, and the radii of the danger zones of its distribution and the number of people who need to be evacuated were taken into account. In practice, having this knowledge, a head of the emergency management center at the State Emergency Service of Ukraine will be able to effectively manage people without exposing them to danger, as well as conduct timely evacuation. The use of these programs makes it possible to reduce the time of hazard assessment and visualize them, which creates advantages over the existing methodology of the State Emergency Service of Ukraine in terms of speed of hazard assessment. The results have made it possible to solve the problem of increasing the efficiency of the emergency management centers at the Emergency Service of Ukraine and to create the prerequisites for building a geo-information portal that could combine various methods and techniques on one platform
Andriy Ivanusa, Volodymyr Marych, Dmytro Kobylkin, and Sergiy Yemelyanenko
Private Company Technology Center
By applying the probabilistic method and optimization synthesis of flexible technological lines, topological models have been built of safety-oriented management of human flows and evacuation time using the «Arena Lviv» stadium as an example. They are necessary to calculate the time of evacuation of people to a safe zone. When people leave the stadium sectors on the promenade, their flow is significantly modified. Therefore, the calculation of the time of evacuation of people requires the use of different procedures depending on the type of human flow in order to obtain more accurate results. There may be several such cases on one evacuation route and significantly more during the evacuation of people from all sectors and premises of the stadium administrative building as a whole. Thus, a lot of time is spent on choosing the right procedure and initial data for calculation if we use existing classical verbal models, which is their disadvantage. Verbal models have a large volume, they need to be repeatedly re-read in order to determine the numerical values of factors affecting the flow of people while topological models are much more compact. Topological models make it possible to visually present more complete information about the evacuation process, and this makes it possible to quickly select the initial data for calculating the time of evacuation of people at the next evacuation site. The time of evacuation of people from the «Arena Lviv» stadium was calculated; the evacuation system happened to not comply with the accepted standards. In particular, the time of evacuation of people from the structure exceeded eight minutes. Using the critical path method, bottlenecks of the stadium evacuation system were identified, and human flows were redistributed, which made it possible to reduce the total evacuation time to acceptable indicators
Roman Yakovchuk, Andriy Kuzyk, Olexander Kagitin, Andriy Ivanusa, and Sergiy Yemelyanenko
IOP Publishing
Abstract The main purpose of this work was to determine the parameters of the fire test of the exterior wall construction with facade heat insulation and plaster to spread the fire by FDS simulation, to reproduce the real conditions of fire test and to verify the developed model by comparing the obtained data with experimental results. Satisfactory error was obtained when measuring temperatures experimentally and by computer simulation during experiments. An experimental study of the spread of fire on the surface of external walls with facade insulation and computer simulation of full-scale tests using computer methods of gas hydrodynamics. Using computer simulation of the parameters of the fire test of the facade insulation system for the spread of fire in the FDS environment, numerical and graphical indicators were obtained that characterize the process of occurrence, spread and development of fire by the surface of the facade insulation system. Computer modelling of fire dynamics using FDS numeric tool was implemented and results obtained were compared with experimental data in order to check possibility of use of appropriate software for the reproduction of real conditions of fires at residential buildings.
, Sergiy Yemelyanenko, , , Andriy Ivanusa, , Roman Yakovchuk, , Andriy Kuzyk, and
National Academy of Sciences of the Republic of Kazakshtan
The complex research method is used in the work, which includes: analysis and generalization of scientific achievements in the field of fire safety, application and processing of statistical data; application as analytical methods of research by collecting, generalizing and analyzing the current normative documents of the State Emergency Service of Ukraine and statistical methods of probability theory, geospatial, mathematical modeling, methods of system analysis. Research Object: The risk of death from fire in public buildings and structures. The purpose of the work is risk evaluation of death from fires in public buildings. Research methods. The complex method of researches is used in the work, which includes: analysis and application of statistical methods of data processing, verification of reliability of the obtained results, mathematical modeling and other analytical methods. The concept of the risk is described in the article and the main normative documents are outlined that treat them. The basic methods and methods of risk assessment for public buildings are analyzed. Fire risk assessment is the calculation of individual fire risk for residents, staff and visitors in a public building. The numerical expression of an individual fire risk is the frequency of exposure of hazardous fire factors to a person in a building or structure. The frequency of exposure to hazardous fire factors is determined for fire-hazardous situations, which are characterized by the greatest danger to the life and health of people in the building. The CFAST program simulated the occurrence of limit concentrations of hazardous factors during fires for two typical public buildings. It is also suggested how to evaluate the results on a specific color scale that allows you to create risk maps for visualization. The draft methodology proposes to consider the follow-up time of fire and rescue units when determining the evacuation time. The main methods and methodologies of risk assessment for buildings and public facilities have been analyzed. For two facilities, the risk of death from fire in buildings and facilities has been estimated. The results of evaluation have been suggested in a color scale, which allows creating maps to visualize the risks. The simulation of the limit concentrations of hazardous factors during the fires for two typical public facilities has been done in CFAST software. Mapping the risks of death from a fire in the appropriate group in the appropriate colors allows you to build a map of the risks of death from a fire and fire and rescue workers know the possible risks and dangers of the objects. The start time of the evacuation, in the absence of warning systems, is determined depending on the time the fire and rescue units follow to the fire site. The proposed calculation methodology and visualization tools allow the rescuer, who makes the decision, to comprehensively assess the situation during the design and to avoid the possible consequences of an emergency, which will increase the level of security.
, Yakovchuk Roman,, , , Kuzyk Andriy,, , Skorobagatko Taras,,et al.
National Academy of Sciences of the Republic of Kazakshtan
Andriy Ivanusa, Sergiy Yemelyanenko, Roman Yakovchuk, and Zoryana Ivanusa
IEEE
An information analysis of successful practices in the implementation of life safety projects has been carried out, which has enabled determination of the necessary models and methods of safety-focused stakeholder management in civil protection projects. Using system analysis and topological synthesis of flexible technological lines, the mathematical apparatus which describes stakeholder management in a civil protection project, the requirements of the regulatory framework in terms of ensuring safety of people in protective constructions, the ultimate placement of people in shelters has been calculated, which subsequently made it possible to implement the project of ensuring safety of people at the facilities which draw large crowds and are located in the vicinity of the Lviv State University of Life Safety
Sergiy Yemelyanenko, Yuriy Rudyk, Andriy Kuzyk, and Roman Yakovchuk
EDP Sciences
Geoportal is an indispensable tool for processing data related to city infrastructure, life support systems; for the analysis of statistics of fires and other emergency situations in the city; to create thematic layers of electron-vector maps showing the city’s infrastructure and other information necessary for the management of the SNS units; for identification of fire risks for residential buildings and public buildings of Lviv city and mapping them according to the risk levels in the form of a risk map. The analysis of the city’s infrastructure allows us to study in detail the problematic issues related to fire and technological safety. The geoportal and its cartographic information of the information will allow the head of the rescue unit, during the post-emergency situation, to find the information necessary for the effective performance of rescue operations and to assess the potential risks.
Sergiy Yemelyanenko, Yuriy Rudyk, and Andriy Ivanusa
IEEE
In modern conditions, there is a need to ensure reliable and high-quality data exchange and the application of GIS-mapping software methods and tools that can improve the efficiency of operations and rescue services, the quality of interaction, data exchange and evaluation of results. For the rescue services Geoportal places the necessary information on emergency situations, allows to analyze the possible risks and to evaluate the possibility of spreading the emergency to other objects. Using features such as 3D modeling of facilities, terrain and other background information about the facility will help in making the right management decisions while performing rescue operations. Visualization of the results of risk assessment can help to make managerial decisions when planning preventive measures as well as operations in emergency situations.
Sergiy Yemelyanenko, Andriy Ivanusa, and Halyna Klym
IEEE
The mechanism of fire risk management at the place for assemblage of people was developed. It is established that individual fire risk human deaths from fire exceeds the permissible value, therefore the additional fire prevention measures at improving the safe operation of the facility have been developed. It is shown that risks of people death on facilities of for assemblage of people largely depend on the duration of limit-permissible values of fire hazards that prevent safe evacuation of people. Practical using of the proposed mechanism of risk management allows to reduce the level of danger to people at operation of place for assemblage of people.