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SUBSTANTIATION OF THE TEST LOAD RELEASE ALTITUDE IN DYNAMIC STRENGTH TESTS OF EMERGENCY DESCENDING DEVICES 应急下降装置动强度试验中试验载荷释放高度的确定
Pub Date : 1900-01-01 DOI: 10.25257/fe.2019.1.75-80
G. Kharisov, A. Strelnikov
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引用次数: 0
Experimental determination of specific coefficient of nitrogen dioxide formation during nitrocellulose film combustion 硝化棉膜燃烧过程中二氧化氮生成比系数的实验测定
Pub Date : 1900-01-01 DOI: 10.25257/fe.2022.3.5-13
V. V. Kuzmin, S. Puzach, R. Akperov, O. Boldrushkiev, Yana Yu. Vashchenkova
Purpose. Pulmonotoxic substances (for example, nitrogen dioxide) are extremely hazardous for people during fires. These substances cause mucous membrane irritation and with prolonged exposure can lead to toxic pulmonary edema. However, fire load database which is used for calculating fire risks does not contain values of nitrogen dioxide formation distribution coefficient. Therefore, determining parameters of nitrogen dioxide formation during various substances and materials burning is a priority. The purpose of the study is to experimentally determine the partial density and distribution coefficient of nitrogen dioxide formation during cellulose nitrate film combustion in an enclosed volume. To achieve it an experimental installation for determining fire hazard of condensed materials during their thermal decomposition has been modified. Methods. Experimental methods of measuring and processing parameters of substances and raw materials burning as well as obtained results analysis methods are used. Findings. A technique for experimental calculation of nitrogen dioxide formation distribution coefficient has been developed and validity of obtained results approximation for real rooms has been justified. Values of distribution coefficient of forming nitrogen dioxide evolved during cellulose nitrate film combustion are experimentally obtained. Maximum weight of the above-mentioned film located in a room of a given volume at which NO2 partial density does not reach its critical or fatal value for people has been assessed. Research application field. Fire load database used when calculating fire risks, according to distribution coefficients of nitrogen dioxide formation during various substances andmaterials combustion has been expanded. Conclusions. The modified experimental installation for determining fire hazard of condensed materials during their thermal decomposition, as well as the developed method for experimental determination of nitrogen dioxide formation distribution coefficient make it possible to obtain data on nitrogen dioxide formation necessary for calculating fire risks in buildings and structures.
目的。肺毒性物质(例如二氧化氮)在火灾期间对人非常危险。这些物质引起粘膜刺激,长期接触可导致中毒性肺水肿。而用于火灾危险性计算的火灾负荷数据库中没有二氧化氮生成分布系数值。因此,确定各种物质和材料燃烧过程中二氧化氮形成的参数是一个优先事项。本研究的目的是通过实验确定硝酸纤维素膜在密闭体积内燃烧过程中二氧化氮形成的偏密度和分布系数。为了实现这一目标,一个用于确定凝聚态材料在热分解过程中的火灾危险的实验装置进行了改进。方法。采用了物质和原料燃烧过程的测量和加工参数的实验方法以及所得结果的分析方法。发现。本文提出了一种实验计算二氧化氮生成分布系数的方法,并证明了所得结果近似于实际房间的有效性。实验得到了硝酸纤维素膜燃烧过程中生成二氧化氮的分布系数。在给定体积的房间内,上述薄膜的NO2部分密度未达到对人的临界或致命值时,其最大重量已被评估。研究应用领域。根据各种物质和材料燃烧过程中二氧化氮生成的分布系数,扩大了火灾风险计算时使用的火灾负荷数据库。结论。改进的冷凝材料热分解过程中火灾危险性测定实验装置,以及开发的二氧化氮生成分布系数实验测定方法,使计算建筑物和构筑物火灾危险性所需的二氧化氮生成数据成为可能。
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引用次数: 0
PHYSICOCHEMICAL CHANGES OF HYBRID POLYURETHANE INORGANIC THERMAL INSULATION WHEN HEATING IN AIR AND IN AN INERT ATMOSPHERE 混合聚氨酯无机绝热材料在空气和惰性气氛中加热时的物理化学变化
Pub Date : 1900-01-01 DOI: 10.25257/fe.2021.4.22-29
K. A., Naganovsky Yu., K. E., A. R.
Purpose. The article presents the results of a study of physicochemical processes occurring when a hybrid polyurethane inorganic thermal insulation is heated under dynamic conditions up to 800 °C in different atmospheric environments. The object of the study was an industrial sample of thermal insulation “FoamTech 1 550” made in South Korea. Methods. In the course of the work thermo-gravimetric analysis and IR-Fourier spectrometry were used. Samples for spectrometric analysis were prepared in the process of thermogravimetric tests by suspending the experiment. Findings. As the result of the combined studying hybrid thermal insulation material by thermogravimetry and IR-Fourier spectrometry methods, the following was established: – polyisocyanate used for obtaining the material is aliphatic in nature; – the hybrid thermal insulation sample contains about 40 % inorganics, presumably aerogel silica; – there are three main stages of hybrid thermal insulation decomposition, both in air and in an inert atmosphere; – analysis of the changes in IR spectra when heating the hybrid sample showed that at the first stage of decomposition, regardless of the atmospheric environment, the condensation reaction of silanol groups of silica aerogel takes place with the water release; – at the second stage, thickening of the inorganic framework continues, chemical polyurethane bonds with the inorganic are destroyed, and polyurethane component carbonization begins. Research application field. The results give the idea of material decomposition process in a fire. Differences in behavior in oxidizing and inert environments are shown. This is important for comparing a new group of materials with the already known types of polymer thermal insulation in terms of their fire hazard and possible application in building construction. Conclusions. The paper studies the chemical structure and physicochemical changes when heating the new group of materials, namely hybrid organic-inorganic thermal insulation materials. The article is a continuation of a team of authors’ systematic study of a thermal behavior of modern types of polymer thermal insulation.
目的。本文介绍了混合聚氨酯无机绝热材料在不同大气环境下动态加热至800°C时发生的物理化学过程的研究结果。研究的对象是韩国制造的隔热材料“泡沫科技1550”的工业样品。方法。在工作过程中采用了热重分析和红外-傅立叶光谱法。在热重测试过程中,通过暂停实验制备光谱分析样品。发现。采用热重法和红外-傅立叶光谱法对杂化保温材料进行了综合研究,得出:——制备该材料所用的多异氰酸酯本质上为脂肪族;-混合保温样品含有约40%的无机物,大概是气凝胶二氧化硅;-混合绝热材料的分解有三个主要阶段,在空气中和在惰性气氛中;-对混合样品加热时红外光谱变化的分析表明,在分解的第一阶段,无论大气环境如何,二氧化硅气凝胶的硅醇基团都随着水的释放而发生缩合反应;在第二阶段,无机骨架继续增厚,化学聚氨酯与无机物的键被破坏,聚氨酯组分碳化开始。研究应用领域。结果给出了火灾中物质分解过程的概念。在氧化和惰性环境中表现出不同的行为。这对于比较一组新材料与已知类型的聚合物绝热材料的火灾危险性和在建筑施工中的可能应用是很重要的。结论。本文研究了一类新型材料即有机-无机杂化绝热材料在加热时的化学结构和物理化学变化。本文是作者团队对现代类型聚合物绝热材料的热行为进行系统研究的延续。
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引用次数: 0
CALCULATING HEAT RELEASEIN THE POWER SUPPLY CHARGING CABLE AT ELECTRIC VEHICLE CHARGING STATIONS 电动汽车充电站供电充电电缆放热计算
Pub Date : 1900-01-01 DOI: 10.25257/fe.2021.2.61-69
O. Dvoenko, V. Kuzmenko, N. Shcherbakov
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引用次数: 0
SURVEY PROCEDURE OF SHOPPING AND ENTERTAINMENT CENTERS STAFF FOR FORMALIZING THE DECISION-MAKING PROCESS ON THE ORGANIZATION AND EVACUATION MANAGEMENT 对购物和娱乐中心工作人员的调查程序,使组织和疏散管理的决策过程正规化
Pub Date : 1900-01-01 DOI: 10.25257/fe.2021.2.54-60
A. Efimov, D. Shikhalev, R. Grigoryan
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引用次数: 0
COMPLEX ASSESSMENT OF SECURITY LEVEL AT AN INDUSTRIAL FACILITY 对工业设施安全水平的复杂评估
Pub Date : 1900-01-01 DOI: 10.25257/fe.2019.2.5-8
A. Chlenov, T. Butcinskaya, N. Ryabtsev
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引用次数: 0
Universal module for processing radar data during search and rescue operations 用于在搜索和救援行动中处理雷达数据的通用模块
Pub Date : 1900-01-01 DOI: 10.25257/fe.2023.2.100-111
Aleksander V. Mokshantsev, Kh.A.M.N. Malfi
PURPOSE. The goal of the authors is to develop a universal information processing module (UIPM), which provides communication environment between the module of the radar signal system and radar stations during search and rescue operations (SRO). Achieving the goal will result in the possibility of processing, synchronizing and transceiving radar data during SRO in real time. METHODS. Methods of modeling, compiling, synthesis and assembly, as well as temporal analysis method were used. It is advisable to use computer-aided design Quartus II of professional level. FINDINGS. UIPM during SRO was developed and its operation was implemented on the basis of processing, synchronizing and transceiving radar data. Module operation simulation in computer-aided design Quartus II of professional level was performed. The results of information processing confirmed: – transceiving data at a speed of 1 Mb/s between all blocks taking into account frequency allocation; – compatibility and synchronization of operations between elements using frequency to determine the range scale of finding casualties on the ground and under the rubble. RESEARCH APPLICATION FIELD. The obtained results make it possible to provide a fast communication environment for real-time processing and synchronizing radar data between the module of the radar signal system and radar stations during SRO. CONCLUSIONS. The use of the developed UIPM during SRO will allow synchronizing radar data on victims location (parameters) between the module of the radar signal system during search and rescue operations, as well as the physical nodes and blocks of the radar station. Transceiving information by control stations, the carrier and the complex of parameters of victims during search and rescue operations will also be provided.
目的。本文的目标是开发一种通用信息处理模块(UIPM),为搜救行动(SRO)中雷达信号系统模块与雷达站之间的通信提供环境。实现这一目标将使SRO过程中雷达数据的实时处理、同步和收发成为可能。方法。采用建模、编译、综合、装配等方法,以及时间分析法。建议使用专业水平的计算机辅助设计Quartus II。发现。SRO期间的UIPM是在雷达数据处理、同步和收发的基础上开发和实现的。在专业级计算机辅助设计Quartus II中进行了模块操作仿真。信息处理结果证实:-在考虑频率分配的情况下,所有块之间以1mb /s的速度收发数据;-各要素之间行动的兼容性和同步性,使用频率确定在地面和瓦砾下发现伤亡的范围和规模。研究应用领域。研究结果为SRO期间雷达信号系统模块与雷达站之间实时处理和同步雷达数据提供了快速通信环境。结论。在SRO期间使用开发的UIPM将允许在搜索和救援行动期间在雷达信号系统模块之间同步受害者位置(参数)的雷达数据,以及雷达站的物理节点和块。在搜救行动中,还将提供控制站、载体和遇难者参数的收发信息。
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引用次数: 0
Thermal-oxidative destruction of hybrid polyurethane thermal insulation of low flammability 低可燃性复合聚氨酯绝热材料的热氧化破坏研究
Pub Date : 1900-01-01 DOI: 10.25257/fe.2022.4.67-76
R. Aseeva, A. Kobelev, Yu.K. Naganovsky, E. Kruglov
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引用次数: 0
Assessment of factors influencing the behavior of security personnel of shopping and entertainment centers in evacuation organization 疏散组织中购物娱乐中心保安人员行为影响因素评估
Pub Date : 1900-01-01 DOI: 10.25257/fe.2022.3.63-72
A. Efimov, D. Shikhalev
Purpose. The analysis of fires and research in the field of evacuation has shown that at present there are a number of problems in evacuating people from shopping and entertainment centers, in particular, the personnel of these facilities do not always have the appropriate training, as well as practical skills required to act in case of fire. The purpose of the study is to determine the factors evacuation organization from shopping and entertainment centers. To achieve this goal it was necessary to conduct a survey of managers, security personnel, and the staff of shopping and entertainment centers, and analyze the obtained results. The choice of this category of respondents is due to the fact that in most cases they are the ones who the decision-making by evacuees depends on. Methods. To formalize the decision-making process and obtain data on knowledge and attitude of the staff of shopping and entertainment centers in the field of organizing and managing evacuation, identifying their quantitative parameters, the survey method has been used. Findings. In the course of the study, a survey of managers and the security staff members (768 respondents) was conducted. The important facts in the field of organizing evacuation process have been identified. The procedure of employees’ actions in organizing evacuation has been formalized. Algorithms for actions of security staff members in case of fire have been determined. Research application field. In the course of further work, it is planned to implement the obtained algorithms into the simulator of the evacuation process during the simulation, which will make it possible to determine the optimal strategies for organizing evacuation of people. Conclusions. In the course of further work, it is planned to implement the obtained algorithms into the simulator of the evacuation process during the simulation, which will make it possible to determine the optimal strategies for organizing evacuation of people.
目的。对火灾的分析和疏散领域的研究表明,目前在从购物和娱乐中心疏散人员方面存在一些问题,特别是这些设施的人员并不总是经过适当的培训,以及在发生火灾时采取行动所需的实际技能。本研究的目的是确定从购物和娱乐中心疏散组织的因素。为了实现这一目标,有必要对购物和娱乐中心的管理人员,保安人员和工作人员进行调查,并分析获得的结果。选择这类受访者是因为在大多数情况下,他们是撤离者决策所依赖的人。方法。为了形式化决策过程,获得购物娱乐中心工作人员在组织和管理疏散领域的知识和态度数据,确定其定量参数,采用调查方法。发现。在研究过程中,对管理人员和保安人员(768名受访者)进行了调查。确定了组织撤离过程领域的重要事实。员工组织疏散的行动程序已正式确立。在火灾情况下,安全人员的行动算法已经确定。研究应用领域。在进一步的工作中,我们计划在模拟过程中将得到的算法应用到疏散过程的模拟器中,从而确定组织人员疏散的最优策略。结论。在进一步的工作中,我们计划在模拟过程中将得到的算法应用到疏散过程的模拟器中,从而确定组织人员疏散的最优策略。
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引用次数: 0
Information systems development prospects for fire and rescue units of EMERCOM of Russia 俄罗斯EMERCOM消防和救援单位信息系统发展前景
Pub Date : 1900-01-01 DOI: 10.25257/fe.2022.3.82-89
Aleksander G. Rozhkov, Evgeni N. Khodatenko, Inna A. Leonovich, Sergey V. Podkosov, Mikhail S. Lednev, Yuri V. Kapralniy
Purpose. The article is devoted to the analysis of information systems (IS) development prospects for fire and rescue units of EMERCOM of Russia. Currently, management centers and IS of the federal, regional, local levels in the system EMERCOM of Russia have been created and are being developed. The effectiveness of their application consists of their integral efficiency and the quality of primary data obtained by such systems. Methods. The authors reviewed articles, scientific reports and materials from open sources on the Internet. In the first part of the review, connectivity factor of IS of EMERCOM of Russia is considered. Findings. The article regards the issue of the episistemic development of IS in the most general form and may serve as a starting point for in-depth research in this area. The second part of the review considers the issue of collecting and processing primary data for IS, in particular, the overview of the current state of fire telemetry systems (TS) and their role in enriching IS data is provided. Main requirements for TS are described, the overview of the layout of promising “Fire and rescue units personnel support system” of the domestic model is presented. Research application field. The obtained data can be used at the stage of strategic planning and budgeting when setting goals for the development of IS in the system of EMERCOM of Russia. Materials can also be in demand when forming requirements for a promising TS of EMERCOM of Russia to automate data collection directly from firefighters. Conclusions. The analysis carried out by the authors shows that it is necessary to alternate the stages of IS development with the stages of “stabilization”, which will increase the stability of the control system, the efficiency and speed of decision-making, and will save money on duplicate functionality within different ISs. Personal telemetry systems should become an indispensable source of data for decision-making information systems, they have great potential for preventing injuries of EMERCOM personnel and can provide data necessary for scientific and research work, as well as for updating the current regulatory framework.
目的。本文分析了俄罗斯EMERCOM消防救援部队信息系统(is)的发展前景。目前,俄罗斯EMERCOM系统中的联邦、地区、地方各级管理中心和信息系统已经建立并正在发展中。其应用的有效性由其整体效率和这些系统获得的原始数据的质量组成。方法。作者审阅了来自互联网上开放资源的文章、科学报告和材料。在回顾的第一部分,考虑了俄罗斯EMERCOM的IS的连通性因素。发现。本文以最一般的形式来看待信息系统的认识论发展问题,可以作为这一领域深入研究的起点。审查的第二部分考虑了为IS收集和处理原始数据的问题,特别是对火灾遥测系统(TS)的现状及其在丰富IS数据中的作用进行了概述。阐述了系统的主要要求,概述了国内有发展前景的“消防救援部队人员保障系统”的布局。研究应用领域。所获得的数据可用于制定俄罗斯EMERCOM系统中IS发展目标的战略规划和预算阶段。当俄罗斯EMERCOM的一个有前途的TS形成要求时,材料也可能是有需求的,该TS可以直接从消防员那里自动收集数据。结论。作者进行的分析表明,有必要将is的发展阶段与“稳定”阶段交替进行,这将增加控制系统的稳定性,决策的效率和速度,并节省在不同ISs内重复功能的资金。个人遥测系统应成为决策信息系统不可缺少的数据来源,它们在防止应急监测系统人员受伤方面具有巨大潜力,并可为科学和研究工作以及更新目前的管理框架提供必要的数据。
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引用次数: 0
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Fire and Emergencies: prevention, elimination
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