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1

Andriamanalina, Drouot, and Alain Merlen. "Explosion violente anisotrope dans un gaz stratifié." Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics-Physics-Chemistry-Astronomy 324, no. 5 (1997): 307–13. http://dx.doi.org/10.1016/s1251-8069(99)80039-6.

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Bouhours, G., B. Tesson, S. De Bourmont, G. Lorimier, and J. C. Granry. "Explosion peropératoire de gaz intestinaux : à propos d’un cas." Annales Françaises d'Anesthésie et de Réanimation 22, no. 4 (2003): 366–68. http://dx.doi.org/10.1016/s0750-7658(03)00062-5.

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Prunet, Bertrand, Olivier Stibbe, Guillaume Burlaton, et al. "Explosion due au gaz le 12 janvier 2019 rue de Trévise a Paris." Médecine de Catastrophe - Urgences Collectives 4, no. 2 (2020): 93–95. http://dx.doi.org/10.1016/j.pxur.2020.04.001.

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Liu, Li, Xinyi Mao, Yongheng Jing, Yao Tang, and Le Sun. "Study on the Explosion Mechanism of Low-Concentration Gas and Coal Dust." Fire 7, no. 12 (2024): 475. https://doi.org/10.3390/fire7120475.

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In coal mines, the mixture of coal dust and gas is more ignitable than gas alone, posing a high explosion risk to workers. Using the explosion tube, this study examines the explosion propagation characteristics and flame temperature of low-concentration gas and coal dust mixtures with various particle sizes. The CPD model and Chemkin-Pro 19.2 simulate the reaction kinetics of these explosions. Findings show that when the gas concentration is below its explosive limit, coal dust addition lowers the gas’s explosive threshold, potentially causing an explosion. Coal particle size significantly aff
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Kashevarova, Galina, and Andrey Pepelyaev. "Numerical Simulation of Domestic Gas Deflagration Explosion and Verification of Computational Techniques." Advanced Materials Research 742 (August 2013): 3–7. http://dx.doi.org/10.4028/www.scientific.net/amr.742.3.

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Accidents caused by domestic gas explosions occur regularly enough. Gas explosion accidents indoors are defined as deflagration explosions. The formation of an explosive cloud depends on many factors inside the building. To understand why the buildings in one case withstand an explosion but collapse in another case, more precise design models and methods of their realization are needed. We used numerical modeling to calculate the blast load intensity and find out the impact of the actual environment parameters. For the model verification we referred to the full-scale experiment on the deflagra
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Jing, Guoxun, Yue Sun, Chuang Liu, and Shaoshuai Guo. "Investigation of the suppression effect of inert dust on the pressure characteristics of gas coal dust explosion." Thermal Science, no. 00 (2024): 95. http://dx.doi.org/10.2298/tsci231209095j.

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The suppression effect of inert powder on gas-induced suspension coal dust explosions was investigated using a semi-closed pipeline experimental platform. The shock wave overpressure propagation characteristics of gas explosions with different concentrations of mixed dust (calcium carbonate and coal dust) were measured and analyzed. The suppression mechanism of inert powder on the explosion process was also discussed. The results indicate that when the coal dust concentration is 200g/m?, the peak overpressure of the explosion decreases gradually with increasing inert powder concentration, and
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Lee, Kwanwoo, and Chankyu Kang. "Expansion of Next-Generation Sustainable Clean Hydrogen Energy in South Korea: Domino Explosion Risk Analysis and Preventive Measures Due to Hydrogen Leakage from Hydrogen Re-Fueling Stations Using Monte Carlo Simulation." Sustainability 16, no. 9 (2024): 3583. http://dx.doi.org/10.3390/su16093583.

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Hydrogen, an advanced energy source, is growing quickly in its infrastructure and technological development. Urban areas are constructing convergence-type hydrogen refilling stations utilizing existing gas stations to ensure economic viability. However, it is essential to conduct a risk analysis as hydrogen has a broad range for combustion and possesses significant explosive capabilities, potentially leading to a domino explosion in the most severe circumstances. This study employed quantitative risk assessment to evaluate the range of damage effects of single and domino explosions. The PHAST
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KOMAROV, A. A., and E. V. BAZHINA. "The impact of gas-dynamic flows accompanying emergency explosions on buildings and structures." Prirodoobustrojstvo, no. 1 (2022): 84–92. http://dx.doi.org/10.26897/1997-6011-2022-1-84-92.

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In the article, using the example of a real explosive object, the methodology for determining the maximum dynamic load that forms during an emergency explosion is considered. The article shows that when determining the load from an emergency explosion, it should be considered that a deflagration explosion of a gas-air mixture occurs. It should be accepted that only a certain part of the combustible substance is involved in the explosion, which is determined as a result of solving the diffusion problem. Detonation explosion should be excluded from sources of explosive danger. A detonation explo
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Li, Dong, Shijie Dai, and Hongwei Zheng. "Investigation of the explosion characteristics of ethylene-air premixed gas in flameproof enclosures by using numerical simulations." Thermal Science, no. 00 (2022): 189. http://dx.doi.org/10.2298/tsci220905189l.

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Flameproof enclosures are widely installed as safety equipment at dangerous industrial sites to reduce ignition risks. However, electrical components typically installed in such flameproof enclosures for the production process can cause ignition and compromise the safety of the enclosures. Thus, in such cases, the explosive characteristics of the flameproof enclosures is severely affected. Accidental gas explosions in industrial sites rarely occur under standard operating conditions. Premixed gas explosions in flameproof shells are complex processes. A 560 mm ? 400 mm ? 280 mm flameproof enclo
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Ingelmo MD, PhD, Ildefonso Ingelmo, and Ricardo Navarro Suay MD PhD. "Biophysics and physiopathogenesis of blast wave traumatic injury. Narrative review. Part I." Journal of Anesthesia & Critical Care: Open Access 16, no. 6 (2024): 151–57. http://dx.doi.org/10.15406/jaccoa.2024.16.00607.

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Explosions are physical, chemical or nuclear reactions that produce a rapid release of enormous amounts of energy (mechanical, kinetic, radioactive, etc.). The chemical explosion is produced by the molecular breakdown of the elements that make up the explosive device. It is an oxidation-reduction process without the intervention of any gas (oxygen) that generates a powerful blast wave. Its harmful effect on living beings and destructive effect on nature is included in the generic term of traumatic injury by blast wave. The categories of explosion by explosive device are: combustion, deflagrati
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11

Liu, Yan, Lin Chen, Xuting Wang, et al. "Study on Overpressure Explosion of Oil and Gas Pipelines and Risk Prevention & Control Measures." Journal of Physics: Conference Series 2520, no. 1 (2023): 012028. http://dx.doi.org/10.1088/1742-6596/2520/1/012028.

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Abstract In view of the flammable and explosive characteristics of oil and gas pipeline transportation medium, once it leaks, production safety accidents are easy to occur. This study uses explosions with severe consequences caused by natural gas pipeline leakage as an example. The risk factors and accident modes of oil and gas storage and transportation pipelines are analyzed; the explosion load is calculated by a scaling explosion prediction model with the TNO multi-energy method; the relationship between overpressure load and combustible gas cloud radius is studied. The methane-air explosio
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12

Burton, Mike, Catherine Hayer, Craig Miller, and Bruce Christenson. "Insights into the 9 December 2019 eruption of Whakaari/White Island from analysis of TROPOMI SO2 imagery." Science Advances 7, no. 25 (2021): eabg1218. http://dx.doi.org/10.1126/sciadv.abg1218.

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Small, phreatic explosions from volcanic hydrothermal systems pose a substantial proximal hazard on volcanoes, which can be popular tourist sites, creating casualty risks in case of eruption. Volcano monitoring of gas emissions provides insights into when explosions are likely to happen and unravel processes driving eruptions. Here, we report SO2 flux and plume height data retrieved from TROPOMI satellite imagery before, during, and after the 9 December 2019 eruption of Whakaari/White Island volcano, New Zealand, which resulted in 22 fatalities and numerous injuries. We show that SO2 was detec
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13

Florea, Gheorghe Daniel, Dan Codruț Petrilean, Nicolae Ioan Vlasin, and Vlad Mihai Păsculescu. "Design of an experimental stand for hydrogen explosions." MATEC Web of Conferences 389 (2024): 00072. http://dx.doi.org/10.1051/matecconf/202438900072.

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Hydrogen, with its remarkable potential as a clean and abundant energy carrier, has gained significant attention as a promising solution for a sustainable future. However, the handling, storage, and utilization of hydrogen come with inherent risks, particularly the potential for explosions. The present work deals with the design of an experimental stand for hydrogen explosions in interconnected spaces, based on previous experience in the field of air-methane mixtures explosions. Considering the explosive properties of hydrogen, much more aggressive than methane gas, a comparative analysis is c
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Choi, Yoo Youl, Soo Young Kim, Kyu Nam Jeon, Tae Woo Kim, and Byung Chul Choi. "Numerical Simulation of Evaporative Gas Behavior Inside Fuel Tank During Fire Extinguishing Process." Fire Science and Engineering 38, no. 4 (2024): 10–19. http://dx.doi.org/10.7731/kifse.c1c93a12.

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A series of explosions at a domestic business site injured approximately 20 people, and joint analysis revealed substandard fuel at the site. The first explosion was caused by the ignition of oil vapor released from the fuel tank, and the second had likely occurred when an ignition source entered the tank. This study models the secondary explosion using a fire dynamics simulator, with acetone and dodecane adopted as representative fuels. The results show that acetone exceeds the upper explosive limit under external heating, whereas it re-enters the flammable range upon cooling, thereby increas
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15

Sherzod, Zairov, Khudaiberdiev Oibek, Normatova Muborak Zh., and Nomdorov Rustam. "Developing the methods of controlling dust and gas conditions when blasting high benches in deep pits." Izvestiya vysshikh uchebnykh zavedenii Gornyi zhurnal, no. 4 (June 25, 2020): 113–21. http://dx.doi.org/10.21440/0536-1028-2020-4-113-121.

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Research aim is to develop a method of reducing dust and gas emissions concentration at bulk explosions in open pits. Research relevance. When drilling and blasting in open pits, a huge amount of dust and toxic gaseous products is released, and the rate of their formation is affected by the blasting method, the range of explosives used, the method of drilling blast holes, type and sort of stemming, massif water content, rock properties, meteorological conditions, etc. It has been established that in an explosion of 1 kg of explosives, 15% from an average of 900 liters of various gases and gase
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Zairov, Sh, Sh Urinov, A. Tukhtashev, and Y. Borovkov. "LABORATORY STUDY OF PARAMETERS OF CONTOUR BLASTING IN THE FORMATION OF SLOPES OF THE SIDES OF THE CAREER." Technical science and innovation 2020, no. 3 (2020): 81–90. http://dx.doi.org/10.51346/tstu-01.20.3-77-0078.

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Explored theoretically the interaction of explosive charges in the preliminary gap formation in quarries. A methodology has been developed for conducting experimental studies of blast well contour explosions on models, which allows one to investigate crack formation on volumetric models and wave interaction using high-speed video recording of the explosion process in transparent models, as well as determine the parameters of explosion stress waves in samples of real rocks. Theoretical and laboratory researches have established that only the creation of a screening gap for the entire height of
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17

Shi, Shulei, Bingyou Jiang, Xiangrui Meng, and Li Yang. "Fuzzy fault tree analysis for gas explosion of coal mining and heading faces in underground coal mines." Advances in Mechanical Engineering 10, no. 8 (2018): 168781401879231. http://dx.doi.org/10.1177/1687814018792318.

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During the past decade, gas explosions have been one of the most serious types of disasters in China, threatening the lives of miners and causing significant losses in terms of national property. This article, by constructing the fuzzy fault tree model of gas explosion on the coalface and heading face, deduces the minimum cut sets and minimum path of the fault tree, analyzes the importance of the fault tree structure, and obtains the ratio of gas explosion. The results show that the isolation of gas and heat sources is the most effective way to prevent gas explosion. In addition, a close detec
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18

Miao, Zeya, Yuechao Zhao, Baoyang Ye, and Wanzhou Chen. "Numerical Dynamic Response Analysis of a Ship Engine Room Explosion Simulation Using OpenFOAM." Journal of Marine Science and Engineering 13, no. 6 (2025): 1051. https://doi.org/10.3390/jmse13061051.

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Maritime safety is crucial as vessels underpin global trade, but engine room explosions threaten crew safety, the environment, and assets. With modern ship designs growing more complex, numerical simulation has become vital for analyzing and preventing such events. This study examines safety risks from alternative fuel explosions in ship engine rooms, using the Trinitrotoluene (TNT)-equivalent method. A finite element model of a double-layer cabin explosion is developed, and simulations using blastFOAM in OpenFOAM v9 analyze shock wave propagation and stress distribution. Four explosion locati
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19

Liu, Wei, Xiangyun Xu, Huahui Yi, and Lifan Zhu. "Studying the Effects of Wave Dissipation Structure and Multiple Size Diffusion Chambers on Explosion Shock Wave Propagation." Fire 6, no. 10 (2023): 371. http://dx.doi.org/10.3390/fire6100371.

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Explosion chambers are crucial to the technology used to prevent coal mine gas explosions. Investigating the shock wave propagation law at various coal mine tunnel cross-sections helps ensure mine safety. A self-built, highly explosive experimental setup was used to conduct empirical research on straight tubes, eight sizes of single-stage explosion chambers, and multi-stage tandem explosion chambers. Ansys Fluent numerical simulation software constructed five different tandem explosion chamber models. The wave dissipation efficiency of various types of explosion chambers was calculated, the pr
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20

Gorev, V. A., and A. D. Korolchenko. "The effect of venting structures on overpressure caused by an indoor explosion." Pozharovzryvobezopasnost/Fire and Explosion Safety 31, no. 3 (2022): 12–23. http://dx.doi.org/10.22227/0869-7493.2022.31.03.12-23.

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Introduction. The article considers an accidental indoor gas explosion on condition of pressure relief through openings in which venting structures were installed.A solution to this problem can protect residential buildings from consequences of explosions due to the fact that the volume of premises in residential buildings is small compared to industrial buildings, and it determines more stringent pressure relief conditions at the initial moment of the explosion development. The article shows that pressure can reach critical values in a small space during the motion of a venting structure in t
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Guo, Huimin, Lianhua Cheng, and Shugang Li. "Statistical Analysis of the Characteristics and Laws in Larger and Above Gas Explosion Accidents in Chinese Coal Mines from 2010 to 2020." Fire 8, no. 3 (2025): 87. https://doi.org/10.3390/fire8030087.

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Gas explosions are the most serious type of accident in coal mines in China. This study analyzed 125 gas explosion accidents that occurred between 2010 and 2020. The results showed that the number of gas explosion accidents and deaths in 2010–2020 was stable and decreasing. The number of larger gas explosion accidents in 2010–2020 is the largest, but the death toll from major accidents was much greater. Coal faces, headings, and roadways are the main locations where gas explosions are initiated. The coal mines in which gas explosions occur in coal faces and headings are mainly “township” enter
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Tuhut, Ligia Ioana, Gheorghe Daniel Florea, and Bogdan-Adrian Simon-Marinica. "Prediction of structural deformations in a research stand for the study of hydrogen explosions." MATEC Web of Conferences 389 (2024): 00075. http://dx.doi.org/10.1051/matecconf/202438900075.

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Along with the development of facilities that employ hydrogen in many aspects such as hydrogen production, storage systems, fueling stations, and so on, it is critical to understand the features of this gas, particularly those affecting the explosive qualities. Researchers can create advanced modeling approaches, risk assessment procedures, and safety standards to lessen the potential impact of accidents by researching the behavior of hydrogen explosions. The present paper deals with the design of a stand intended for hydrogen explosion experimentation, anticipating the possible values of the
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Taubkin, I. S., A. V. Akhachinskii, A. R. Saklantii, Yu A. Robot’ko, A. F. Kozhukhov, and V. V. Gulenkov. "On Fracture Pattern of Polymer Canisters at Explosion of Various Media." Theory and Practice of Forensic Science 20, no. 1 (2025): 96–103. https://doi.org/10.30764/1819-2785-2025-1-96-103.

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The fracture pattern of polymer canisters found at an explosion site may contain information on the nature of an exploded medium – gas or an air-vapor mixture or a condensed explosive substance. Due to the fact there was no data in the available technical literature on the fracture pattern of polymer canisters’ explosions of various nature, experts conducted special studies under examination of one of the criminal cases the results of which are presented in this article.
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Viktor, Kostenko, Liashok Yaroslav, Zavialova Olena, Pozdieiev Serhii, and Kostenko Tetiana. "THE DEFORMATION DYNAMICS OF THE EXPERIMENTAL ADIT'S MATERIAL DURING A COAL DUST EXPLOSION." Eastern-European Journal of Enterprise Technologies 4, no. 7 (106) (2020): 54–62. https://doi.org/10.15587/1729-4061.2020.209409.

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The purpose of this paper is to improve the mechanism that forms an explosive environment within the workings' space from the accumulated coal dust, based on determining the dynamic deformations under the influence of an explosion in the material that contains the examined working. To simulate the dynamic changes in the stressed-deformed state of the rock mass with an experimental adit inside when under the impact of explosive loads, a modern method of finite differences of mathematical-computer modeling has been used. During the research, the mathematical model has been adapted for studyi
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Şimon-Marinică, Adrian Bogdan, and Zoltan Vass. "Automation of physical experiments regarding explosions of air-methane mixtures." MATEC Web of Conferences 305 (2020): 00013. http://dx.doi.org/10.1051/matecconf/202030500013.

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In the following study, experimental results are obtained from an automated stand. With the help of this experimental stand, visualization techniques such as Schlieren and Shadowgraph can be applied, to study the flame front propagation of air and inflammable gas mixtures initiation. In parallel, an infrared sensor was used to control a push-pull solenoid to open the gas escape diaphragm of the stand. To obtain the explosive gas mixture at various concentrations (between the lower explosion limit and the upper explosion limit) an original programmable mixer was used, based on computational alg
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Gui, Xiaohong, Haiteng Xue, Junwei Zhu, Xingrui Zhan, and Fupeng Zhao. "Study on Inhibition Characteristics of Composite Structure with High-Temperature Heat Pipe and Metal Foam on Gas Explosion." Energies 15, no. 3 (2022): 1135. http://dx.doi.org/10.3390/en15031135.

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The hazards caused by gas explosion are mainly due to high temperatures and shock waves. It is of great practical significance to explore a device that can restrain these two hazards at the same time. Through the establishment of the gas explosion calculation model, a numerical analysis of the flame propagation in the three types of pipelines, including the empty pipe, the single metal foam pipe, and the high-temperature heat pipe metal foam composite structure, was carried out. The numerical results are compared with the relevant experimental results. The accuracy, rationality, and accuracy o
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Zhong, Wei, and Zhou Tian. "Calculating the Quasi-Static Pressures of Confined Explosions Considering Chemical Reactions under the Constant Entropy Assumption." Applied Mechanics and Materials 164 (April 2012): 396–400. http://dx.doi.org/10.4028/www.scientific.net/amm.164.396.

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On the basis of the energy conservation and the state equation of the ideal gas, a formula of quasi-static pressures of the confined explosions calculating was derived under the constant entropy assumption of the detonation products expansion and the constant volume assumption of the chemical reactions. Taking the TNT explosive as an example, the quasi-static pressures of the confined explosion either considering the influence of the chemical reactions or not were calculated and the quasi-static pressures of the confined space were obtained
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Çalık, Ferdi. "The Evaluation of Methane Gas Explosion Risk in Confined Spaces – A Case Study in the Ship Building Industry." International Journal of Advances in Engineering and Pure Sciences 37, no. 2 (2025): 144–52. https://doi.org/10.7240/jeps.1600904.

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Hydrocarbon gas explosions such as methane gas in confined spaces represent a significant hazard across various industries, particularly mining, oil and gas extraction, and oxy-cutting processes. The risks associated with methane accumulation are exacerbated by the unique characteristics of confined spaces, where gas concentrations can reach explosive levels. The explosive potential of methane is primarily influenced by its concentration in the air. Understanding the conditions under which methane becomes hazardous is crucial for developing effective safety protocols and mitigation strategies.
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Wickramasinghe, Chathula Ushari, and Amal Nishantha Vadysinghe. "Blast Injury from Locally Manufactured “Hakka Patas”." Journal of Forensic Science and Medicine 9, no. 1 (2023): 81–83. http://dx.doi.org/10.4103/jfsm.jfsm_69_21.

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Explosives are potentially harmful devices that can create an explosion by a rapid release of a pressurized gas consequent to a chemical reaction within the device. They can inflict a variety of injuries, due to the blast wave, fire, and shrapnel. The pattern and severity of injuries will be determined by various factors, including explosive potential and constituents such as shrapnel. Homemade explosive devices (HEDs) pose a further threat due to their volatile, unpredictable nature which can lead to accidental explosions. We present the case of a 28-year-old farmer who presented with extensi
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Sun, Wen Bin, Qiang Qiang Zhu, and Wei Zhong He. "Experimental Study of the Carbon FRP Retrofitted Reinforced Concrete Panels under Explosion." Applied Mechanics and Materials 405-408 (September 2013): 831–34. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.831.

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Explosions, such as a bomb explosion and a gas explosion, can cause catastrophic damage on the buildings. In fact, an explosion may result in large dynamic loads, greater than the original design loads, of many structures. Two RC specimens were tested under explosive loading. The first specimen was used as a control for the experiment, while the other was retrofitted with 6 near surface mounted (NSM) Carbon FRP strips on each face. Both specimens were subjected to a 60g Pentolite at stand off distances of 0.6m. The aim of this experiment was to observe and compare the behavior of the two speci
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Huang, Zichao, Rongjun Si, Guangcai Wen, Songling Jin, and Shaoqian Xue. "Experimental Study on the Isolation Effect of an Active Flame-Proof Device on a Gas Explosion in an Underground Coal Mine." Fire 6, no. 12 (2023): 468. http://dx.doi.org/10.3390/fire6120468.

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Passive explosion-isolation facilities in underground coal mines, such as explosion-proof water troughs and bags, face challenges aligned with current trends in intelligent and unmanned technologies, due to restricted applicability and structural features. Grounded in the propagation laws and disaster mechanisms of gas explosions, the device in this paper enables accurate identification of explosion flames and pressure information. Utilizing a high-speed processor for rapid logical processing enables judgments within 1 ms. Graded activation of the operating mechanism is enabled by the device.
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Hang, Chaoyuan, Fei Liu, Kai Xin, et al. "Characterization of gas explosion shock wave propagation in long straight confined space." Journal of Physics: Conference Series 2791, no. 1 (2024): 012007. http://dx.doi.org/10.1088/1742-6596/2791/1/012007.

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Abstract Currently, China is engaged in the construction of urban subterranean areas and the deployment of gas pipelines within these spaces. Nonetheless, the entry of gas into subterranean areas poses a definite threat of leaks and explosions. An explosion triggered by a gas pipeline leak will gravely compromise the underground space’s integrity and significantly affect nearby structures. Consequently, examining the spread properties of gas explosion shock waves in urban subterranean areas is essential. This document utilizes FLACS software to develop an extensive straight confined space gas
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Garanina, Elena, Artur Tymanovsky, and Fyodor Dementyev. "SELECTION OF PARAMETERS FOR ASSESSING THE PROBABILITY OF FIRE AND EXPLOSION OF VAPOR-GAS-AIR MIXTURES AND THEIR CONSEQUENCES." MONITORING AND EXPERTISE IN SAFETY SYSTEM 2024, no. 3 (2024): 8–15. http://dx.doi.org/10.61260/2304-0130-2024-3-8-15.

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The article is devoted to the selection of parameters that allows one to assess the probability and consequences of a fire and explosion of vapor-gas-air mixtures. A review of literature sources devoted to the study of fires and explosions associated with the ignition of vapor-gas-air mixtures is carried out. The study of fires and explosions of vapor-gas-air mixtures in the normative and technical literature is considered in detail. The main calculation parameters are given to assess the probability and consequences of a fire and the explosion of vapor-gas-air mixtures. Characteristics of com
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Giudicepietro, Flora, Sonia Calvari, Salvatore Alparone, et al. "Integration of Ground-Based Remote-Sensing and In Situ Multidisciplinary Monitoring Data to Analyze the Eruptive Activity of Stromboli Volcano in 2017–2018." Remote Sensing 11, no. 15 (2019): 1813. http://dx.doi.org/10.3390/rs11151813.

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After a period of mild eruptive activity, Stromboli showed between 2017 and 2018 a reawakening phase, with an increase in the eruptive activity starting in May 2017. The alert level of the volcano was raised from “green” (base) to “yellow” (attention) on 7 December 2017, and a small lava overflowed the crater rim on 15 December 2017. Between July 2017 and August 2018 the monitoring networks recorded nine major explosions, which are a serious hazard for Stromboli because they affect the summit area, crowded by tourists. We studied the 2017–2018 eruptive phase through the analysis of multidiscip
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Li, Lin, Tiantian Liu, Zhiqiang Li, Xiangjun Chen, Lin Wang, and Shuailong Feng. "Different Prevention Effects of Ventilation Dilution on Methane Accumulation at High Temperature Zone in Coal Mine Goafs." Energies 16, no. 7 (2023): 3168. http://dx.doi.org/10.3390/en16073168.

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In coal mine goafs, spontaneous combustion of coal can result in methane accumulation, which raises the danger of methane explosion disasters. As an atmospheric control tool, ventilation is applied to ensure air quality for avoiding disasters in underground mines. However, during the process of the spontaneous combustion of coal in coal mine goafs, the impact of ventilation dilution on the possible methane explosions induced by coal combustion has not been well investigated. In this study, a validated gas flow model for the spontaneous coal combustion environment in goafs of coal mines is adop
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36

Komarov, A. A., and V. V. Timokhin. "Experimental Investigation and Modeling of the Formation of Explosive Concentrations." Occupational Safety in Industry, no. 1 (January 2023): 84–88. http://dx.doi.org/10.24000/0409-2961-2023-1-84-88.

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Excess pressure is the main indicator characterizing the magnitude of explosive loads during emergency gas explosions. The value of this parameter and the entire accident scenario as a whole directly depend on the concentration of gas entering the room. Any typical room is characterized by the presence of two processes: laminar and turbulent diffusion. The laminar diffusion coefficient depends on the main characteristics of the gas (pressure, temperature). The laminar diffusion coefficient depends on the main characteristics of the gas (pressure, temperature). The coefficient of turbulent diff
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37

Garrido-Ceca, Ignacio, María Puig-Gamero, and Álvaro Ramírez-Gómez. "Influence of Bends in the Functionality of Passive Explosion Isolation Valves." Applied Sciences 12, no. 22 (2022): 11654. http://dx.doi.org/10.3390/app122211654.

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Explosion isolation flap valves are one of the most used explosion protection systems in process industries; research is essential to improve them and to minimise both human and material losses when dust explosions take place. In this regard, there is little knowledge on the effect of bends in the functionality of these protective systems; hence, the main aim of this work is to bridge this gap. Large-scale dust explosions were performed, using three different types of dust: metal dust and two types of organic dust. In order to analyse the effect of bends in the functionality of these protectiv
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38

Yan, Chen, Zhirong Wang, Kai Liu, Qingqing Zuo, Yaya Zhen, and Shangfeng Zhang. "Numerical simulation of size effects of gas explosions in spherical vessels." SIMULATION 93, no. 8 (2017): 695–705. http://dx.doi.org/10.1177/0037549717698227.

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To study the law of sizes on gas explosions, numerical simulations of methane–air mixture explosions in spherical vessels were performed. The law of sizes on gas explosions is studied using FLUENT simulations with the [Formula: see text] two-equation turbulent model, the eddy-dissipation-concept model, thermal dissipation at a wall boundary, the P1 model, and the SIMPLE algorithm. The experimental results suggest that under an adiabatic condition without energy loss, the maximum explosion pressures in different spherical vessels are all 0.82 MPa, and the effect on the explosion intensity in sp
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39

Ji, Yuguo, Yuefeng Pan, Shuxin Deng, et al. "A Nonexplosive Method for Simulating Stress Waves of Large-Scale Underground Explosions." Geofluids 2022 (July 31, 2022): 1–15. http://dx.doi.org/10.1155/2022/2006621.

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In the large-scale underground explosion, the dynamic mechanical behavior of deep rock mass under the coupled loading of the high in situ stress and the explosive stress wave is difficult to study. And the coupled loading of the in situ stress and the stress waves of large-scale underground explosions are hard to simulate. Based on this problem, an experimental device was developed, and a nonexplosive method for simulating stress waves of large-scale underground explosions was presented by us. In the experimental device, the impact energy is provided by the high-pressure gas in the air chamber
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40

Perestoronin, M. O., O. S. Parshakov, and M. D. Popov. "Parameterization of a ventilation network model for the analysis of mine working emergency ventilation modes." Gornye nauki i tekhnologii = Mining Science and Technology (Russia) 8, no. 2 (2023): 150–61. http://dx.doi.org/10.17073/2500-0632-2022-10-13.

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Digital simulation of mine fires and explosions is an important stage in the process of developing technical solutions and measures aimed at improving the safety of personnel involved in underground mining. Correct simulation results determine the effectiveness of decisions in the event of an actual emergency situation. In this regard, due attention should be paid to each stage of the simulation, and especially to the initial stage of model parameterization. This study formulates a general principle for determining the parameters of mine fire and explosion models, in order to assess their deve
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41

Liu, Chun, Jinshi Li, and Di Zhang. "Fuzzy Fault Tree Analysis and Safety Countermeasures for Coal Mine Ground Gas Transportation System." Processes 12, no. 2 (2024): 344. http://dx.doi.org/10.3390/pr12020344.

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The coal mine ground gas transportation system is widely used for gas transportation and mixing preheating in the gas storage and oxidation utilization system. However, gas or coal dust explosions may occur, which could result in heavy casualties and significant economic losses. To prevent accidents in the gas transportation system, the present study takes the gas transportation system of Shanxi Yiyang Energy Company as an example to identify the composition and hazardous factors of the gas transportation system. Fault tree analysis (FTA) models were established with pipeline gas and coal dust
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42

Salehi, Hossein, and Simin Taj Sharififar. "Investigating the Challenges of Ammonia Emission in Firuzabad Sodium Carbonate Factory Incident: A Case Study." Health in Emergencies & Disasters Quarterly 9, no. 1 (2023): 61–68. http://dx.doi.org/10.32598/hdq.8.4.545.1.

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Background: An ammonia gas explosion poses immediate health hazards such as respiratory tract burns, skin and eye irritation, and potential death within seconds. It also causes long-term negative impacts on biodiversity, affecting aquatic life and vegetation. An explosion in the Firuzabad sodium carbonate factory in Iran led to massive ammonia gas leakage and the poisoning of several employees. This study evaluates the risks of ammonia gas release caused by the explosion and the rescue team’s response in the same factory. Materials and Methods: This study was conducted in 2020 in Firuzabad Cit
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43

Богач, V. Bogach, Никулин, V. Nikulin, Потапкин, and V. Potapkin. "About Requirements to Protection of Equipment from Explosion during Gas-Rescuing Work." Safety in Technosphere 2, no. 5 (2013): 31–34. http://dx.doi.org/10.12737/1576.

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The problem of explosive zones’ class definition during gas-rescuing work, as well as requirements related to applied equipment
 explosion protection have been considered in this paper. It is established that explosive zones in accident conditions belong to
 class 0 or 1. In the absence of data on an accident source and explosive substances’ leakage nature it is necessary to accept 0 class
 of an explosive zone and apply the equipment conforming to requirements of special explosion protection during gas-rescuing
 work. Liquidation of accident consequences after elimination
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44

В. В., Адушкин, та Спивак А. А. "ФОРМИРОВАНИЕ И РАСПРОСТРАНЕНИЕ УДАРНЫХ ВОЛН В АТМОСФЕРЕ ЗЕМЛИ". ДИНАМИЧЕСКИЕ ПРОЦЕССЫ В ГЕОСФЕРАХ 16, № 3 (2024): 122–36. http://dx.doi.org/10.26006/29490995_2024_16_3_122.

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Предложен новый подход к оценке амплитуды ударных волн и волн сжатия в атмосфере, вызванных источниками взрывного типа: промышленные взрывы, мощные взрывы сосредоточенных зарядов, взрывы конденсированных химических ВВ и взрывы газовых смесей. В результате обобщения данных инструментальных наблюдений показана возможность использования формул М.А. Садовского для описания механического эффекта ударных волн в атмосфере, для всех выше перечисленных источников, путем учета зависимости масштабных коэффициентов закона энергетического подобия и тротилового эквивалента взрыва от объемной плотности энерг
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45

Li, Runzhi, Zhigang Zhang, Rongjun Si, et al. "Experimental Study on Injuries to Animals Caused by a Gas Explosion in a Large Test Laneway." Shock and Vibration 2021 (April 5, 2021): 1–9. http://dx.doi.org/10.1155/2021/6632654.

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Gas explosion accidents in underground coal mines caused a significant number of casualties. By using a large laneway test system, the damage to Sprague-Dawley (SD) rats at locations at different distances from the source of ignition along the direction of propagation of an explosion was investigated after 100 m3 of the gas-air mixture was ignited and exploded. In this way, the data pertaining to explosion flames and explosion pressures at different propagation distances were obtained to investigate the propagation of explosion flames and explosion pressures along the laneway. Besides, the dam
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46

Skřínský, Jan, Ján Vereš, Jana Trávníčková, and Andrea Dalecká. "Explosions Caused by Corrosive Gases/Vapors." Materials Science Forum 844 (March 2016): 65–72. http://dx.doi.org/10.4028/www.scientific.net/msf.844.65.

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Gas/vapor cloud explosions and fires are responsible for most of the largest property loss events worldwide in the hydrocarbon industry. Motivation for this article is to summarize explosion pressure caused by corrosive gases/vapors in terms of mathematical modeling. Presented explosions based on real scenarios of accidents associated with transport and storage facilities with corrosive flammable chemicals. While explosions of pure flammable chemicals are well described in the literature, the information about explosions of corrosive and toxic flammable substances is rather scarce. This work a
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Вогман, Леонид Петрович, Иван Ардашевич Болодьян, Евгений Николаевич Простов, and Дмитрий Александрович Бритиков. "Localization and reduction of accident consequences during deflagration and explosion." Pozharnaia bezopasnost`, no. 1(102) (March 24, 2021): 42–46. http://dx.doi.org/10.37657/vniipo.pb.2021.90.78.004.

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Ранее нами был рассмотрен вопрос о целесообразности более четкой дифференциации процессов горения горючих газо-, паро- и пылевоздушных смесей по показателям горения и критериям, характеризующим последствия аварий, сопровождающихся пожарами и взрывами, также было введено понятие «повышенная дефлаграция» («хлопк»). Такой подход может способствовать устранению коллизий в вопросах определения последствий аварий на объектах защиты, а также исключению различных толкований применимости как для промышленных объектов, так и для жилых зданий мероприятий по обеспечению их пожаровзрывобезопасности. В наст
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Wei, Chun Rong, Min Qiang Xu, Jian Hua Sun, and Xian Wei Zhang. "The Solid Barrier Explosion Device of the Gas Recoil Type of the Extracting Coal Face of the Coal Mine." Applied Mechanics and Materials 121-126 (October 2011): 3015–19. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.3015.

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Aiming at the limitation of the roadway-type barrier explosion device which is being used in the coal mine, this paper suggests to establish the gas recoil type barrier explosion device. Using the mechanism of the gas recoil type, it made the structure design of the solid barrier explosion device of the circle-arch roadway. The device has the better effect on the elimination of the damage and the influence of the high-temperature flame of the gas and coal dust explosion and the overpressure damage of the shock wave. Especially, it can have a more realistic function for the secondary explosion
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Zhuohua, Yang, Ye Qing, Jia Zhenzhen, and Li He. "Numerical Simulation of Pipeline-Pavement Damage Caused by Explosion of Leakage Gas in Buried PE Pipelines." Advances in Civil Engineering 2020 (September 15, 2020): 1–18. http://dx.doi.org/10.1155/2020/4913984.

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In order to investigate the damage influence of the leakage explosion in urban gas pipeline on the surrounding environment, the numerical models of buried PE (polyethylene) pipes under urban pavement were established by using ANSYS/LS-DYNA in this study. The reliability of the numerical models was verified on the basis of the explosion experiments. According to the amount of gas leakage, the TNT explosive equivalent was determined. The gas leakage explosion process of buried PE pipes was studied, and the pressure and stress changes of pipes and pavements under different explosive equivalents a
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50

Klyuchka, Y., and D. Doroshenko. "ESTIMATION OF THE TIME OF REACHING FIRE AND EXPLOSIVE CONCENTRATIONS IN THE ROOM WHEN A PROPANE-BUTANE CYLINDER IS DEPRESSURIZED." Municipal economy of cities 3, no. 191 (2025): 509–15. https://doi.org/10.33042/2522-1809-2025-3-191-509-515.

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The study was conducted in the context of military aggression, where the use of propane-butane by the population of Ukraine for cooking and heating has become particularly relevant due to periodic power outages. This situation creates additional threats, as the fire and explosion hazard of gas cylinders, particularly their depressurization due to critical pressure and temperature increases, is determined by several key factors. Incidents related to gas explosions regularly occur worldwide, causing significant material damage, infrastructure destruction, and, most importantly, human casualties.
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