Pub Date : 2024-02-14DOI: 10.61260/1998-8990-2024-2023-4-156-166
Mikhail Okhotnikov, Alexandra Guzhva, Irina Claptyuk
Explosions of fuel-air mixtures and their accompanying fires are perhaps the most common emergencies. A high probability of this kind of emergency is typical for both industrial facilities and the residential sector. When studying fires associated with deflagration (explosive) gorenje fuel-air mixtures, experts often face a number of questions that are difficult to solve when using the standard methodological approach used in the study of a classic fire. The article presents an expert analysis of fires caused by the ignition (explosion) of a fuel-air mixture. The paper also presents statistics of fires associated with explosions of fuel-air mixtures over the past five years, which provides data on the categories of objects and the nature of fuel-air mixtures.
{"title":"FEATURES OF THE STUDY OF FIRES ASSOCIATED WITH EXPLOSIONS OF FUEL-AIR MIXTURES","authors":"Mikhail Okhotnikov, Alexandra Guzhva, Irina Claptyuk","doi":"10.61260/1998-8990-2024-2023-4-156-166","DOIUrl":"https://doi.org/10.61260/1998-8990-2024-2023-4-156-166","url":null,"abstract":"Explosions of fuel-air mixtures and their accompanying fires are perhaps the most common emergencies. A high probability of this kind of emergency is typical for both industrial facilities and the residential sector. \u0000When studying fires associated with deflagration (explosive) gorenje fuel-air mixtures, experts often face a number of questions that are difficult to solve when using the standard methodological approach used in the study of a classic fire. The article presents an expert analysis of fires caused by the ignition (explosion) of a fuel-air mixture. The paper also presents statistics of fires associated with explosions of fuel-air mixtures over the past five years, which provides data on the categories of objects and the nature of fuel-air mixtures.","PeriodicalId":497475,"journal":{"name":"Problems of risk management in the technosphere","volume":"51 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139777345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-14DOI: 10.61260/1998-8990-2024-2023-4-226-237
Evgeny Prostov
The paper analyzes statistical data on the number of vehicles in Russia, on the number of cars with installed gas cylinder equipment, as well as the number of fires on them. The main causes of fires on cars without a gas cylinder equipment device and with it have been identified and analyzed. Gas cylinder equipment is an integral part of the design, therefore, in a comprehensive assessment of the frequency of fires on the gas-powered cars, it is advisable to take into account statistical data on fires and accidents separately on gas cylinder equipment. Using the proposed method, statistical indicators were determined to determine the frequency of fires at facilities with the placement of gas-powered vehicles. Calculated values of the frequency of fire occurrence have been obtained, which can be used in calculating fire risk at facilities for the storage and maintenance of cars, including those with installed gas cylinder equipment.
{"title":"A METHOD FOR DETERMINING THE FREQUENCY OF FIRES AT FACILITIES WITH STORAGE AND MAINTENANCE OF VEHICLES RUNNING ON GAS FUEL","authors":"Evgeny Prostov","doi":"10.61260/1998-8990-2024-2023-4-226-237","DOIUrl":"https://doi.org/10.61260/1998-8990-2024-2023-4-226-237","url":null,"abstract":"The paper analyzes statistical data on the number of vehicles in Russia, on the number of cars with installed gas cylinder equipment, as well as the number of fires on them. The main causes of fires on cars without a gas cylinder equipment device and with it have been identified and analyzed. Gas cylinder equipment is an integral part of the design, therefore, in a comprehensive assessment of the frequency of fires on the gas-powered cars, it is advisable to take into account statistical data on fires and accidents separately on gas cylinder equipment. Using the proposed method, statistical indicators were determined to determine the frequency of fires at facilities with the placement of gas-powered vehicles. Calculated values of the frequency of fire occurrence have been obtained, which can be used in calculating fire risk at facilities for the storage and maintenance of cars, including those with installed gas cylinder equipment.","PeriodicalId":497475,"journal":{"name":"Problems of risk management in the technosphere","volume":"35 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139778975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-14DOI: 10.61260/1998-8990-2024-2023-4-175-184
Maxim Sytdykov, Alexander Shilov, Dmitry Brusyanin
To assess the effectiveness of a full-size mobile universal fire extinguishing system, fire tests of the developed layout of an experimental mobile universal fire extinguishing system were carried out, taking into account the requirements of national standards, which determined the choice of the operating pressure range and nozzle diameters. Numerical values of the duration of the supply, the length of the jet and the rate of discharge of fire extinguishing agent from the vessel of the layout of a mobile universal fire extinguishing system from the diameters of the nozzles with a change in pressure are obtained. The results showed that the duration of the supply and the length of the jet of fire extinguishing agent, regardless of the diameters of the nozzles, depend on the pressure, the flow rate and outflow rate of fire extinguishing agent depend on both the diameters of the nozzles and the pressure. The relationship between the parameters of the layout and its extinguishing capacity has been determined, which confirms the declared capabilities of its working cycle.
{"title":"FIRE TESTS OF A MOBILE UNIVERSAL FIRE EXTINGUISHING SYSTEM","authors":"Maxim Sytdykov, Alexander Shilov, Dmitry Brusyanin","doi":"10.61260/1998-8990-2024-2023-4-175-184","DOIUrl":"https://doi.org/10.61260/1998-8990-2024-2023-4-175-184","url":null,"abstract":"To assess the effectiveness of a full-size mobile universal fire extinguishing system, fire tests of the developed layout of an experimental mobile universal fire extinguishing system were carried out, taking into account the requirements of national standards, which determined the choice of the operating pressure range and nozzle diameters. Numerical values of the duration of the supply, the length of the jet and the rate of discharge of fire extinguishing agent from the vessel of the layout of a mobile universal fire extinguishing system from the diameters of the nozzles with a change in pressure are obtained. The results showed that \u0000the duration of the supply and the length of the jet of fire extinguishing agent, regardless of the diameters of the nozzles, depend on the pressure, the flow rate and outflow rate of fire extinguishing agent depend on both the diameters of the nozzles and the pressure. The relationship between the parameters of the layout and its extinguishing capacity has been determined, which confirms the declared capabilities of its working cycle.","PeriodicalId":497475,"journal":{"name":"Problems of risk management in the technosphere","volume":"12 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139779239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Long-term operation of fire alarm systems, even with routine maintenance, often leads to untimely detection of a fire. Due to the possibility of contamination, dust and, as a consequence, a decrease in the sensitivity of smoke fire detectors, their normal operation will be in question. The use of smoke detectors in the process of maintenance that do not simulate the optical density of the environment corresponding to a real fire leads to the fact that in the event of a real fire, the possibility of timely detection of dangerous factors is reduced. The work examines the problem of checking the installed fire alarm system for its effective functioning, as well as the possibility of ensuring safe evacuation when threshold smoke levels are reached. Mathematical modeling of smoke propagation is presented and comparative full-scale tests are carried out. Based on a series of experiments, an effective method has been proposed for testing a fire alarm system while simultaneously conducting exercises for the safe evacuation of personnel at a protected facility under conditions of a real decrease in visibility due to the appearance of smoke from a fire.
{"title":"CONDUCTING FIELD TESTS OF FIRE ALARM SYSTEMS WHEN SIMULATING TEST FIRE WITH EVACUATION OF THE CONTROL GROUP","authors":"Bogdan Gavkalyuk, Oleg Savoshinsky, Alina Prishchenko","doi":"10.61260/1998-8990-2024-2023-4-185-194","DOIUrl":"https://doi.org/10.61260/1998-8990-2024-2023-4-185-194","url":null,"abstract":"Long-term operation of fire alarm systems, even with routine maintenance, often leads to untimely detection of a fire. Due to the possibility of contamination, dust and, as a consequence, a decrease in the sensitivity of smoke fire detectors, their normal operation \u0000will be in question. The use of smoke detectors in the process of maintenance that do not simulate the optical density of the environment corresponding to a real fire leads to the fact that in the event of a real fire, the possibility of timely detection of dangerous factors is reduced. The work examines the problem of checking the installed fire alarm system for its effective functioning, as well as the possibility of ensuring safe evacuation when threshold smoke levels are reached. Mathematical modeling of smoke propagation is presented and comparative full-scale tests are carried out. Based on a series of experiments, an effective method has been proposed \u0000for testing a fire alarm system while simultaneously conducting exercises for the safe evacuation of personnel at a protected facility under conditions of a real decrease in visibility due to the appearance of smoke from a fire.","PeriodicalId":497475,"journal":{"name":"Problems of risk management in the technosphere","volume":"17 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139777118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-14DOI: 10.61260/1998-8990-2024-2023-4-54-62
Andrey Penchenkov, V. Lozhkin
The issues of physical and mathematical modeling of the processes of distribution, accumulation and extremely dangerous impact of suspended particles from highways on the environment and the health of the urban population under adverse meteorological and special transport conditions during peak hours are considered. The results of a critical analysis of modern domestic and foreign physical-analytical approaches are presented, which are recommended to be used for the physical-mathematical description of the specific processes of emission, propagation and accumulation in the stratified atmosphere in the vicinity of a motorway of solid particles of various origins and, consequently, different levels of negative sanitary hygienic impact, estimated by the maximum permissible concentrations at the level of human breathing. The areas of application of the models and recommended measures to reduce extremely dangerous air pollution with suspended particles of various origins on the highway are analyzed. In conclusion, summarizing conclusions are given on the improvement of the physical and mathematical models analyzed in the work, aimed at improving the accuracy of the results by taking into account relevant factors in order to effectively manage urban air quality.
{"title":"MODELING THE EXTREMELY HAZARDOUS IMPACT OF SUSPENDED PARTICLES FROM A HIGHWAY, CONSIDERING ACCOUNT THEIR CHEMICAL COMPOSITION","authors":"Andrey Penchenkov, V. Lozhkin","doi":"10.61260/1998-8990-2024-2023-4-54-62","DOIUrl":"https://doi.org/10.61260/1998-8990-2024-2023-4-54-62","url":null,"abstract":"The issues of physical and mathematical modeling of the processes of distribution, accumulation and extremely dangerous impact of suspended particles from highways on the environment and the health of the urban population under adverse meteorological and special transport conditions during peak hours are considered. The results of a critical analysis of modern domestic and foreign physical-analytical approaches are presented, which are recommended to be used for the physical-mathematical description of the specific processes of emission, propagation and accumulation in the stratified atmosphere in the vicinity of a motorway of solid particles of various origins and, consequently, different levels of negative sanitary hygienic impact, estimated by the maximum permissible concentrations at the level of human breathing. The areas of application of the models and recommended measures to reduce extremely dangerous air pollution with suspended particles of various origins on the highway are analyzed. In conclusion, summarizing conclusions are given on the improvement of the physical and mathematical models analyzed in the work, aimed at improving the accuracy of the results by taking into account relevant factors in order to effectively manage urban air quality.","PeriodicalId":497475,"journal":{"name":"Problems of risk management in the technosphere","volume":"49 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139778277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-14DOI: 10.61260/1998-8990-2024-2023-4-216-225
Olga Lozhkina, Konstantin Malchikov
Active development of water recreation market leads to a noticeable increase in the number of motorized recreational boats and, as a consequence, to an aggravation of their technogenic impact on the environment. New outboard motors should go through a fairly long break-in period to allow the moving parts to better break in. During the mode, on average, twice as much engine oil is added to the fuel as during daily operation, and this affects the concentration of pollutants in the exhausts. The results of the experimental study of the HANGKAI T6 2-stroke gasoline outboard motor, have shown that the content of CO, CO2 and CH in the exhausts has increased, respectively, by 19,0–62,8 %, 32,3–60,7 % and 18,1–64,7 % in the break-in mode with a fuel-oil ratio 25:1 compared to daily operation mode with a fuel-oil ratio 50:1.
{"title":"DETERMINATION OF CONCENTRATIONS OF POLLUTANTS IN EXHAUSTS OF HANGKAI T6 OUTBOARD ENGINE AT BREAK-IN MODE AND DURING DAILY OPERATION","authors":"Olga Lozhkina, Konstantin Malchikov","doi":"10.61260/1998-8990-2024-2023-4-216-225","DOIUrl":"https://doi.org/10.61260/1998-8990-2024-2023-4-216-225","url":null,"abstract":"Active development of water recreation market leads to a noticeable increase in the number of motorized recreational boats and, as a consequence, to an aggravation of their technogenic impact on the environment. New outboard motors should go through a fairly long break-in period to allow the moving parts to better break in. During the mode, on average, twice as much engine oil is added to the fuel as during daily operation, and this affects the concentration of pollutants in the exhausts. The results of the experimental study of the HANGKAI T6 2-stroke gasoline outboard motor, have shown that the content of CO, CO2 and CH in the exhausts has increased, respectively, by 19,0–62,8 %, 32,3–60,7 % and 18,1–64,7 % in the break-in mode with a fuel-oil ratio 25:1 compared to daily operation mode with a fuel-oil ratio 50:1.","PeriodicalId":497475,"journal":{"name":"Problems of risk management in the technosphere","volume":"50 25","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139778953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the article, the normative extinguishing capacity of substances is compared with the results of experiments on extinguishing class B fires. It is shown that the normative, real and laboratory effectiveness of powder extinguishing compositions are in good agreement. The presented studies confirm that the effectiveness of class B flame suppression can be improved by a factor of two by adding a small amount of inhibitor to the inert substance. The issue of equipping the object of protection with powder fire extinguishers is discussed from the point of view of taking into account their effectiveness. It is shown that due to the low requirements for the quantity and quality of fire extinguishers, a fire safety specialist must carefully pay attention to the weight, installation location and actual effectiveness of the fire extinguisher to improve the quality of the fire prevention system at the protection facility.
文章将物质的规范灭火能力与 B 类火灾的灭火实验结果进行了比较。结果表明，粉末灭火成分的标准灭火能力、实际灭火能力和实验室灭火能力非常一致。研究证实，在惰性物质中加入少量抑制剂，B 类火焰的灭火效果可以提高两倍。从灭火效果的角度讨论了在保护对象上配备粉末灭火器的问题。结果表明，由于对灭火器的数量和质量要求不高，消防安全专家必须认真注意灭火器的重量、安装位置和实际效果，以提高保护设施防火系统的质量。
{"title":"CONSIDERATION OF THE EFFECTIVENESS OF A FIRE EXTINGUISHING AGENTS WHEN EQUIPPED WITH PORTABLE POWDER FIRE EXTINGUISHERS","authors":"Anatoly Chernov, Mikhail Tsygankov, Andrey Shmakov","doi":"10.61260/1998-8990-2024-2023-4-195-205","DOIUrl":"https://doi.org/10.61260/1998-8990-2024-2023-4-195-205","url":null,"abstract":"In the article, the normative extinguishing capacity of substances is compared with the results of experiments on extinguishing class B fires. It is shown that the normative, real and laboratory effectiveness of powder extinguishing compositions are in good agreement. \u0000The presented studies confirm that the effectiveness of class B flame suppression can be improved by a factor of two by adding a small amount of inhibitor to the inert substance. The issue of equipping the object of protection with powder fire extinguishers is discussed from the point of view of taking into account their effectiveness. It is shown that due to the low requirements for the quantity and quality of fire extinguishers, a fire safety specialist must carefully pay attention to the weight, installation location and actual effectiveness of the fire extinguisher to improve the quality of the fire prevention system at the protection facility.","PeriodicalId":497475,"journal":{"name":"Problems of risk management in the technosphere","volume":"84 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139837492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the article, the normative extinguishing capacity of substances is compared with the results of experiments on extinguishing class B fires. It is shown that the normative, real and laboratory effectiveness of powder extinguishing compositions are in good agreement. The presented studies confirm that the effectiveness of class B flame suppression can be improved by a factor of two by adding a small amount of inhibitor to the inert substance. The issue of equipping the object of protection with powder fire extinguishers is discussed from the point of view of taking into account their effectiveness. It is shown that due to the low requirements for the quantity and quality of fire extinguishers, a fire safety specialist must carefully pay attention to the weight, installation location and actual effectiveness of the fire extinguisher to improve the quality of the fire prevention system at the protection facility.
文章将物质的规范灭火能力与 B 类火灾的灭火实验结果进行了比较。结果表明，粉末灭火成分的标准灭火能力、实际灭火能力和实验室灭火能力非常一致。研究证实，在惰性物质中加入少量抑制剂，B 类火焰的灭火效果可以提高两倍。从灭火效果的角度讨论了在保护对象上配备粉末灭火器的问题。结果表明，由于对灭火器的数量和质量要求不高，消防安全专家必须认真注意灭火器的重量、安装位置和实际效果，以提高保护设施防火系统的质量。
{"title":"CONSIDERATION OF THE EFFECTIVENESS OF A FIRE EXTINGUISHING AGENTS WHEN EQUIPPED WITH PORTABLE POWDER FIRE EXTINGUISHERS","authors":"Anatoly Chernov, Mikhail Tsygankov, Andrey Shmakov","doi":"10.61260/1998-8990-2024-2023-4-195-205","DOIUrl":"https://doi.org/10.61260/1998-8990-2024-2023-4-195-205","url":null,"abstract":"In the article, the normative extinguishing capacity of substances is compared with the results of experiments on extinguishing class B fires. It is shown that the normative, real and laboratory effectiveness of powder extinguishing compositions are in good agreement. \u0000The presented studies confirm that the effectiveness of class B flame suppression can be improved by a factor of two by adding a small amount of inhibitor to the inert substance. The issue of equipping the object of protection with powder fire extinguishers is discussed from the point of view of taking into account their effectiveness. It is shown that due to the low requirements for the quantity and quality of fire extinguishers, a fire safety specialist must carefully pay attention to the weight, installation location and actual effectiveness of the fire extinguisher to improve the quality of the fire prevention system at the protection facility.","PeriodicalId":497475,"journal":{"name":"Problems of risk management in the technosphere","volume":"7 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139777840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-14DOI: 10.61260/1998-8990-2024-2023-4-106-114
A. Kalach, Pavel Ageev, Alexander Krutolapov
The fire hazard of underground metro facilities determined by the presence of significant amounts of combustible materials in escalator and distillation tunnels, office premises, station lobbies, the presence of a large number of cable networks and electrical equipment under voltage in the premises and structures, which leads to fires, huge economic losses and human victims. Presents the results of the analysis and generalization of possible fire scenarios at the main underground metro facilities with a massive stay of people, which should be taken into account when carrying out calculations for assessing the fire risk for employees and visitors of the metro, which will provide the most informative assessment of the fire hazard for people in the structures metro, and will allow to fully implement the requirements of the provisions of Article 6 of the Federal Law of July 22, 2008 № 123-FZ «Technical regulations on fire safety requirements» for the subway underground structures.
{"title":"UPDATED SCENARIO OF FIRE DEVELOPMENT IN UNDERGROUND FACILITIES OF THE SUBWAY","authors":"A. Kalach, Pavel Ageev, Alexander Krutolapov","doi":"10.61260/1998-8990-2024-2023-4-106-114","DOIUrl":"https://doi.org/10.61260/1998-8990-2024-2023-4-106-114","url":null,"abstract":"The fire hazard of underground metro facilities determined by the presence of significant amounts of combustible materials in escalator and distillation tunnels, office premises, station lobbies, the presence of a large number of cable networks and electrical equipment under voltage in the premises and structures, which leads to fires, huge economic losses and human victims. \u0000Presents the results of the analysis and generalization of possible fire scenarios at the main underground metro facilities with a massive stay of people, which should be taken into account when carrying out calculations for assessing the fire risk for employees and visitors of the metro, which will provide the most informative assessment of the fire hazard for people in the structures metro, and will allow to fully implement the requirements of the provisions of Article 6 of the Federal Law of July 22, 2008 № 123-FZ «Technical regulations on fire safety requirements» for the subway underground structures.","PeriodicalId":497475,"journal":{"name":"Problems of risk management in the technosphere","volume":"37 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139778495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-02-14DOI: 10.61260/1998-8990-2024-2023-4-100-105
Bogdan Gavkalyuk, V. Lozhkin
The issue of physical and mathematical representation of the thermal dynamics (kinetics) of the process of conversion of exhaust gases in a catalytic converter in dangerous, from the point of view of fire, uncontrolled emergency operating modes of its operation is considered. Modern automobile engines are required to ensure fire safety. On engines with converters, this conflicts with stringent international environmental standards, the satisfaction of which requires the dangerously heated converter to be placed in the engine compartment next to flammable combustible materials. It is proposed to solve the problematic issue by monitoring and diagnosing fire and emergency operating conditions of neutralizers in an in-place method, scientifically substantiated on an interdisciplinary basis – by analyzing the composition of the exhaust gases. The method has been positively tested under real operating conditions.
{"title":"SCIENTIFIC BASIS FOR PREVENTION OF FIRES OF AUTOMOBILE CONVERTERS IN OPERATION","authors":"Bogdan Gavkalyuk, V. Lozhkin","doi":"10.61260/1998-8990-2024-2023-4-100-105","DOIUrl":"https://doi.org/10.61260/1998-8990-2024-2023-4-100-105","url":null,"abstract":"The issue of physical and mathematical representation of the thermal dynamics (kinetics) of the process of conversion of exhaust gases in a catalytic converter in dangerous, from the point of view of fire, uncontrolled emergency operating modes of its operation \u0000is considered. Modern automobile engines are required to ensure fire safety. On engines with converters, this conflicts with stringent international environmental standards, the satisfaction of which requires the dangerously heated converter to be placed in the engine compartment next to flammable combustible materials. It is proposed to solve the problematic issue by monitoring and diagnosing fire and emergency operating conditions of neutralizers in an in-place method, scientifically substantiated on an interdisciplinary basis – by analyzing the composition of the exhaust gases. The method has been positively tested under real operating conditions.","PeriodicalId":497475,"journal":{"name":"Problems of risk management in the technosphere","volume":"801 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139838750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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