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Journal articles on the topic 'Combustion, Spontaneous'

Author: Grafiati
Published: 4 June 2021
Last updated: 29 January 2023

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1

Simonds, Cylena. "Spontaneous Combustion." Afterimage 21, no. 5 (December 1, 1993): 5–7. http://dx.doi.org/10.1525/aft.1993.21.5.5.

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2

Bynurn, Bill. "Spontaneous combustion." Lancet 360, no. 9350 (December 2002): 2099. http://dx.doi.org/10.1016/s0140-6736(02)12017-4.

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3

Kitchen, Judith. "Spontaneous Combustion." American Book Review 29, no. 2 (2008): 14–15. http://dx.doi.org/10.1353/abr.2008.0003.

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4

Powers, Thomas. "SPONTANEOUS COMBUSTION." Sciences 25, no. 5 (September 10, 1985): 48–52. http://dx.doi.org/10.1002/j.2326-1951.1985.tb02798.x.

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5

Frolov, S. M., B. E. Gel'fand, and S. A. Tsyganov. "Spontaneous combustion regimes." Combustion, Explosion, and Shock Waves 28, no. 5 (1992): 462–74. http://dx.doi.org/10.1007/bf00755716.

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6

Phillips, R. John. "Can Combustion Be Spontaneous?" Journal of Failure Analysis and Prevention 8, no. 3 (May 6, 2008): 215–17. http://dx.doi.org/10.1007/s11668-008-9142-9.

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7

Haver, Arthur. "PREVENTION OF SPONTANEOUS COMBUSTION." Journal of the American Society for Naval Engineers 28, no. 1 (March 18, 2009): 316–19. http://dx.doi.org/10.1111/j.1559-3584.1916.tb00634.x.

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8

Rothbaum, H. P. "Spontaneous combustion of hay." Journal of Applied Chemistry 13, no. 7 (May 4, 2007): 291–302. http://dx.doi.org/10.1002/jctb.5010130704.

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9

Li, Xuping, Jing Zhang, Xiaopeng Ren, Yanqing Liu, Chenhong Zhou, and Tianyu Li. "Study on condition analysis and temperature prediction of coal spontaneous combustion based on improved genetic algorithm." AIP Advances 12, no. 11 (November 1, 2022): 115128. http://dx.doi.org/10.1063/5.0127606.

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For major coal mine spontaneous combustion caused by major disasters every year, various scholars have studied and analyzed the conditions of coal mine spontaneous combustion and predicted the coal temperature. Coal mine spontaneous combustion is an inevitable disaster, but studying the coal mine surface covering to damp coal mine spontaneous combustion can greatly reduce the occurrence of coal mine spontaneous combustion. We analyzed the oxygen absorption in the pores of coal and the tendency of its own water content for spontaneous combustion of coal. The model experiment was carried out, and the correlation between different gas concentrations and coal temperature produced during spontaneous combustion of mixed coal samples was analyzed. The coal temperature was predicted in coal mines with different water contents and oxygen absorption levels, the coal temperature was predicted four times, and the performance evaluation and comparison of the correct prediction of coal temperature under different algorithm models were carried out. Finally, in the contrast experiment, the curve of the fitting function and minimum error value is further compared, and it can be seen that the combined model of the genetic algorithm and neural network algorithm has more accurate prediction accuracy than the single model. Through the analysis of the coal spontaneous combustion phenomenon and the study of anti-coal spontaneous combustion devices and the oxidation process, we have reduced the risk of spontaneous combustion in coal mining areas.
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10

Gao, Yang, Wu Xiao, Yang Yu, Li Jiang Xu, Fang Shao, and Ji Yong Zeng. "Comprehensive Treatment of Coal Waste Piles with Spontaneous Combustion." Applied Mechanics and Materials 533 (February 2014): 384–89. http://dx.doi.org/10.4028/www.scientific.net/amm.533.384.

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Coal waste is the inevitable outcome during coal mining and processing and its output is more and more tremendous. The underutilized coal waste accumulates and forms waste pile. Its spontaneous combustion could lead to serious environmental problem, indicating it is particularly important to comprehensively treat the coal waste piles with spontaneous combustion. According to the mechanism and characteristic of coal waste piles with spontaneous combustion, this study classified the treatment in the different periods into diagnosis of spontaneous combustion, extinguishment, fire prevention and vegetation restoration. Furthermore, were viewed the advance in studying comprehensive treatment of coal waste piles with spontaneous combustion and we expected to supply the reference for selecting treatment of coal waste piles with spontaneous combustion.
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11

Wan, Xiang Yun, and Hao Yang. "Research on Prediction System of Spontaneous Combustion in Coal Mine Goaf Based on Multi-Sensor Fusion Technology." Advanced Materials Research 550-553 (July 2012): 2887–90. http://dx.doi.org/10.4028/www.scientific.net/amr.550-553.2887.

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The spontaneous combustion in coal mine goaf badly influences the underground safe work and regular production, which has become one of the major disasters that get much attention and need to be controlled. This paper analyzes the causes of spontaneous combustion and the relationship between the significant gas and temperature, the degree of spontaneous combustion, and coal category to monitor the composition and concentration of the significant gas of the spontaneous combustion in coal mine goaf and graphically visualize the change trend in a certain period. At the same time, when the composition and concentration of the significant gas approach the spontaneous combustion point, the system can make a sound-light alarm. The system not only provides robust technical support for the prediction of the spontaneous combustion in goaf, but also gives some reference for the prevention of underground spontaneous combustion in coal industry.
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12

Yan, Li, Hu Wen, Wenyong Liu, Yongfei Jin, Yin Liu, and Chuansheng Li. "Adiabatic spontaneous coal combustion period derived from the thermal effect of spontaneous combustion." Energy 239 (January 2022): 122101. http://dx.doi.org/10.1016/j.energy.2021.122101.

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13

Xie, Qiangyan. "Research Progress on Spontaneous Combustion Characteristics of Coal." Academic Journal of Science and Technology 3, no. 3 (November 13, 2022): 18–22. http://dx.doi.org/10.54097/ajst.v3i3.2528.

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Based on coal spontaneous combustion characteristics under different influence differ greatly. The oxidation mechanism of coal is reviewed. The surface active functional groups of coal which influence the spontaneous combustion characteristics of coal were studied. The factors affecting spontaneous combustion of coal were analyzed, including volatile matter, ash, moisture content and metal elements. It provides reference and guidance for further study of coal spontaneous combustion characteristics.
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14

Qi, Yun, Wei Wang, Qingjie Qi, Zhangxuan Ning, and Youli Yao. "Distribution of spontaneous combustion three zones and optimization of nitrogen injection location in the goaf of a fully mechanized top coal caving face." PLOS ONE 16, no. 9 (September 20, 2021): e0256911. http://dx.doi.org/10.1371/journal.pone.0256911.

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In order to effectively prevent and control spontaneous combustion of residual coal in the goaf and reduce the waste of nitrogen caused by setting the position of nitrogen injection, 1303 fully mechanized coal caving faces of the Jinniu Mine are studied. By deploying a bundle tube monitoring system in the inlet air side and return air side of the goaf, changes in gas concentration in the goaf are continuously monitored. In addition, the distribution area for spontaneous combustion three-zone in the goaf is divided into heat dissipation zone, oxidized spontaneous combustion zone, and suffocation zone. Simulations from the COMSOL Multiphysics 5.3 software provide insight based on the three zones division standard of spontaneous combustion in the goaf. The gradual deepening of the nitrogen injection position into the goaf affects the lower limit of the oxidized spontaneous combustion zone significantly, but the impact on the upper limit of the oxidized spontaneous combustion zone is not obvious and is negligible. With regard to the width of the oxidized spontaneous combustion zone, it initially decreases followed by a gradual increase. Numerical calculations suggest the optimal nitrogen injection position is 40 m from the roof cutting line, with an oxidized spontaneous combustion zone width of 28 m. Based on the simulation analysis results, nitrogen injection controlling measures have been adopted for spontaneous combustion of residual coal in the goaf of the 1303 fully mechanized coal caving faces, and coal self-ignition in the goaf has been successfully extinguished.
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15

Zhao, Youxin, Qingjie Qi, and Xinlei Jia. "Prediction Model for Spontaneous Combustion of Coal around Boreholes Using Bedding Gas Drainage." Shock and Vibration 2021 (May 14, 2021): 1–11. http://dx.doi.org/10.1155/2021/5533054.

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To accurately and reliably predict the time of spontaneous combustion of fractured coal around a borehole induced by gas drainage along the seam, this study performed an orthogonal test taking the No. 10 Coal Mine of Pingdingshan as the research object, in terms of the suction negative pressure and coal seam buried depth. COMSOL Multiphysics was used to model the orthogonal test results, and a multielement statistical analysis of four factors and their relationships with the spontaneous combustion of coal around the borehole and a single-factor analysis in line with the site conditions were performed on the modeling results through multiple regression. The results showed a nonlinear regression relationship between the sealing hole length, sealing hole depth, negative pressure, and coal seam depth and the spontaneous combustion of the coal around the gas drainage borehole; the prediction regression model is significant. Taking the field gas drainage in the No. 10 Coal Mine of Pingdingshan as an example, the relationship between the time of spontaneous combustion of gas drainage and the drainage pressure follows a power of two. When the drainage negative pressure is less than 45 kPa, the coal around the borehole is more likely to undergo spontaneous combustion with increasing pressure, and the sealing hole length has a positive linear correlation with the time of spontaneous combustion of the coal around the borehole. When the sealing hole length is 23 m, the time of spontaneous combustion of the coal around the gas drainage hole is >500 days, and the coal around the borehole does not easily undergo spontaneous combustion. When the sealing depth is 15 m, the time of spontaneous combustion of the coal around the gas drainage hole is 76 days, which is most likely to cause spontaneous combustion.
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16

Nishimoto, Tetsuya, Masanori Hosoya, Jun Kodama, and Masahiro Morita. "Spontaneous Combustion of Coal (II)." Fire Science and Technology 5, no. 2 (1985): 123–28. http://dx.doi.org/10.3210/fst.5.123.

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17

Handa, Takashi, Tetsuya Nishimoto, Masahiro Morita, and Jun Kodama. "Spontaneous Combustion of Coal (I)." Fire Science and Technology 5, no. 1 (1985): 21–30. http://dx.doi.org/10.3210/fst.5.21.

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18

Nishimoto, Tetsuya, Masahiro Morita, and Hirofumi Yajima. "Spontaneous Combustion of Coal (III)." Fire Science and Technology 6, no. 1/2 (1986): 1–6. http://dx.doi.org/10.3210/fst.6.1.

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19

Morita, Masahiro, Tetsuya Nishimoto, Jun Kodama, Takehiko Ohsawa, and Kenji Hayashi. "Spontaneous Combustion of Coal (IV)." Fire Science and Technology 6, no. 1+2 (1986): 7–20. http://dx.doi.org/10.3210/fst.6.7.

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20

Levi-Faict, Thierry W., and Gérald Quatrehomme. "So-called Spontaneous Human Combustion." Journal of Forensic Sciences 56, no. 5 (March 10, 2011): 1334–39. http://dx.doi.org/10.1111/j.1556-4029.2011.01746.x.

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21

Monazam, Esmail R., Lawrence J. Shadle, and Abolghasem Shamsi. "Spontaneous Combustion of Char Stockpiles." Energy & Fuels 12, no. 6 (November 1998): 1305–12. http://dx.doi.org/10.1021/ef980094m.

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22

Weed, Harrison G. "A case of spontaneous combustion." Annals of Emergency Medicine 20, no. 2 (February 1991): 219. http://dx.doi.org/10.1016/s0196-0644(05)81246-6.

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23

Pugliese, Gina, and Martin S. Favero. "Spontaneous Combustion of Exam Gloves." Infection Control & Hospital Epidemiology 17, no. 9 (September 1996): 624. http://dx.doi.org/10.1017/s019594170000504.

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24

Di Benedetto, A., F. S. Marra, and G. Russo. "Spontaneous oscillations inlean premixed combustion." Combustion Science and Technology 174, no. 10 (October 2002): 1–18. http://dx.doi.org/10.1080/00102200290021344.

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25

Naujokas, A. A. "Spontaneous combustion of carbon beds." Plant/Operations Progress 4, no. 2 (April 1985): 120–26. http://dx.doi.org/10.1002/prsb.720040214.

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26

Tan, Bo, Yuan Gang Jiang, Chao Nan He, Jing Chang, and Ya Qi Luo. "Numerical Simulation and Backfilling Materials Research on Coal Spontaneous Combustion of Thick Seam Large-Scale Top-Caving Region in Resources Conformity Coal Mine." Advanced Materials Research 524-527 (May 2012): 317–20. http://dx.doi.org/10.4028/www.scientific.net/amr.524-527.317.

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This paper aimed at fire control in thick seam large-scale top-carving region. On the basis of coal and oxygen compounding theory, theoretical analysis, numerical simulation and experiment are combined, and a coal spontaneous combustion process model is built according to fluid mechanics and control theory. By studying and testing on top-carving coal spontaneous combustion process, conclusion is drawn that spontaneous combustion area is the largest in partly-closed region, followed by unclosed region. A totally closed baffle leads to the smallest spontaneous combustion area and the smallest possibility of fire. With local materials in a certain condition, new, cheap backfilling materials are developed. Thus provide theoretical basis for study on the forecasting and prevention of thick seam large-scale top-carving coal spontaneous combustion.
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27

Zuo, Qiuling, Jingshan Li, and Yujie Wang. "Distribution law for the danger area for spontaneous coal combustion in a dynamic goaf with low air leakage speed." Thermal Science, no. 00 (2020): 308. http://dx.doi.org/10.2298/tsci200602308z.

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This paper examines the relationship between the advancement of the working face and the distribution of spontaneous coal combustion under a low air leakage wind speed in a goaf. Based on the unsteady state simulation method, the process of spontaneous coal combustion was simulated in a fully mechanized coal mining face at different advancing speeds. The relationship between different advancing speeds and the distribution area of the oxidation zone of spontaneous coal combustion in a goaf was clarified. A safe advancing speed was determined. Furthermore, the advancement of the working face altered the area of spontaneous high temperature inside the goaf. An increase in the advancing speed increased the length of time of spontaneous combustion in the leftover coal. An exponential relationship was demonstrated between the spontaneous combustion area and the advancement of the fully mechanized mining face. When the oxygen concentration was used as a calculation indicator, the width of the oxidation zone was asymmetrical on the inlet and outlet, and the advancing distance of the working surface increased when the distance was shorter than 90 m and the return side was smaller than the inlet side. When the advancing distance was longer than 90 m, the width of the spontaneous combustion oxidation zone distribution remained unchanged. The study clarified the relationship between the distribution of the danger area for spontaneous coal combustion and advancing speed. This could provide a theoretical basis for the prevention and control technology of the spontaneous combustion of broken coal in a dynamic goaf.
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28

Shi, Guo-Qing, Mao-xi Liu, Yan-Ming Wang, Wen-Zheng Wang, and De-Ming Wang. "Computational Fluid Dynamics Simulation of Oxygen Seepage in Coal Mine Goaf with Gas Drainage." Mathematical Problems in Engineering 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/723764.

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Mine fires mainly arise from spontaneous combustion of coal seams and are a global issue that has attracted increasing public attention. Particularly in china, the closure of coal workfaces because of spontaneous combustion has contributed to substantial economic loss. To reduce the occurrence of mine fires, the spontaneous coal combustion underground needs to be studied. In this paper, a computational fluid dynamics (CFD) model was developed for coal spontaneous combustion under goaf gas drainage conditions. The CFD model was used to simulate the distribution of oxygen in the goaf at the workface in a fully mechanized cave mine. The goaf was treated as an anisotropic medium, and the effects of methane drainage and oxygen consumption on spontaneous combustion were considered. The simulation results matched observational data from a field study, which indicates CFD simulation is suitable for research on the distribution of oxygen in coalmines. The results also indicated that near the workface spontaneous combustion was more likely to take place in the upper part of the goaf than near the bottom, while further from workface the risk of spontaneous combustion was greater in the lower part of the goaf. These results can be used to develop firefighting approaches for coalmines.
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29

Wang, Wei, Yun Qi, Baoshan Jia, and Youli Yao. "Dynamic prediction model of spontaneous combustion risk in goaf based on improved CRITIC-G2-TOPSIS method and its application." PLOS ONE 16, no. 10 (October 27, 2021): e0257499. http://dx.doi.org/10.1371/journal.pone.0257499.

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Due to the problems related to the numerous factors affecting the spontaneous combustion of goaf coal, such as sudden, uncertain, and dynamic changes, and the fact that the weight of the indexes in the prediction model of the spontaneous combustion risk is difficult to determine, an improved Criteria Importance Through Inter-criteria Correlation (CRITIC) modified Technique for Order of Preference by Similarity to Ideal Solution G2-(TOPSIS) dynamic prediction model of goaf spontaneous combustion was developed. An optimal decision-making model was established by introducing the Euclidean distance function, and the function-driven type G2 weighting method was modified using the differential-driven type weighting method of the CRITIC. In addition, the comprehensive weights of each index were obtained. An update factor was introduced to obtain the dynamic weight, and the primary-secondary relationship of the risk factors affecting the spontaneous combustion of goaf was evaluated. Based on the G2 weighting method, which approximates the driving function principle of the ideal solution ranking method (TOPSIS), a G2-TOPSIS goaf spontaneous combustion risk assessment model was established. The degree of closeness was analyzed and the risk grade of the goaf spontaneous combustion was finally predicted. The sub-model was applied to the goaf of working face 1303 in the Jinniu Coal Mine. It was concluded that the air leakage duration was the dominant factor inducing the risk of the spontaneous combustion of the goaf. The risk grade of spontaneous combustion of the goaf is Class III, and the predicted results are consistent with the actual situation. The improved CRITIC-G2-TOPSIS dynamic model was demonstrated to be scientific in predicting the goaf spontaneous combustion risk, and these research results have important popularization and application value.
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30

Dudzińska, Agnieszka. "The Effect of Pore Volume of Hard Coals on Their Susceptibility to Spontaneous Combustion." Journal of Chemistry 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/393819.

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In this paper the results of the experimental studies on a relationship between pore volume of hard coals and their tendency to spontaneous combustion are presented. Pore volumes were determined by the gas adsorption method and spontaneous combustion tendencies of coals were evaluated by determination of the spontaneous combustion indexesSzaandSza′on the basis of the current Polish standards. An increase in the spontaneous combustion susceptibility of coal occurs in the case of the rise both in micropore volumes and in macropore surfaces. Porosity of coal strongly affects the possibility of oxygen diffusion into the micropores of coal located inside its porous structure. The volume of coal micropores determined on the basis of the carbon dioxide adsorption isotherms can serve as an indicator of a susceptibility of coal to spontaneous combustion.
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31

Fan, Jiuyuan, Gang Wang, and Jiuling Zhang. "Study on Spontaneous Combustion Tendency of Coals with Different Metamorphic Grade at Low Moisture Content Based on TPO-DSC." Energies 12, no. 20 (October 15, 2019): 3890. http://dx.doi.org/10.3390/en12203890.

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In the environments of various open coal storage sites, mining-affected coalbeds, and goafs, etc., some coal bodies are often affected by external environmental factors. They are highly prone to spontaneous combustion in low moisture content (≤8%). In order to examine the effect of low moisture content on the spontaneous combustion tendency of coals with different metamorphic grade, we conducted a temperature programmed oxidation (TPO) experiment and differential scanning calorimetry (DSC) experiment to study the spontaneous combustion characteristics of coals with different metamorphic grade at four different low moisture contents. The change laws of the characteristic parameters of four different metamorphic grade coals at four different low moisture contents were comparatively analyzed. The experimental results indicate that: (1) Compared other low moisture content, anthracite and fat coal at a low moisture content of 1.2 % show a stronger tendency for spontaneous combustion, and long flame coal and lignite at a low moisture content of 3.4% and 5.6% are more prone to spontaneous combustion. (2) Four different metamorphic grade coals at a low moisture content of 7.8% are less prone to spontaneous combustion.
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32

Zubov, Vladimir, and Dmitrii Golubev. "Prospects for the use of modern technological solutions in the flat-lying coal seams development, taking into account the danger of the formation of the places of its spontaneous combustion." Записки Горного института 250 (September 29, 2021): 534–41. http://dx.doi.org/10.31897/pmi.2021.4.6.

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Spontaneous combustion of coal remains an important problem for coal mines, which can lead to an explosion of methane and coal dust. Accidents associated with spontaneous combustion of coal can cause significant economic losses to coal mining companies, as well as entail social damage – injuries and loss of life. Accidents are known at the Kuzbass mines, which occurred as a result of negligent attitude to the danger of spontaneous combustion of coal, the victims of which were dozens of people. The analysis of emergency situations associated with spontaneous combustion of coal shows that the existing wide range of means of preventing endogenous fires does not provide complete safety when working out coal seams prone to spontaneous combustion, therefore, spontaneous combustion places continue to occur in mines. The consequences that may arise as a result of a methane explosion initiated by a self-ignition place indicate the need to improve the used technologies. The purpose of the work is to determine the impact of modern technological solutions used in functioning mines during underground mining of flat-lying coal seams prone to spontaneous combustion, and to develop new solutions that reduce endogenous fire hazard. Conclusions on the influence of leaving coal pillars in the developed space, isolated air removal from the stoping face through the developed space, the length of the stoping face and the excavation pillar, and other factors on the danger of the formation of spontaneous combustion places are presented. Conclusions about the possibility of using modern technological solutions in future are also drawn.
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33

Niu, Qun, Lin Chao Dai, Fu Dao Liu, and Yu Qiang Guo. "The Comprehensive Fire-Fighting Technology Research of the Section Retracement in Fully Mechanized Workface." Advanced Materials Research 709 (June 2013): 305–8. http://dx.doi.org/10.4028/www.scientific.net/amr.709.305.

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Spontaneous combustion of coal is one of the most serious coal mine disasters, which threat the workers' life safety. The paper introduce the comprehensive measures, such as monitor, positive draft technology, nitrogen injection, slip casting, fire preventing and extinguishing under seal, and other relevant coal spontaneous combustion forecast technique used in 1901s fully mechanized workface of FuCheng mining industry, when it has not been mined or its work face has not been removed, which realize the comprehensive treatment of coal spontaneous combustion, guarantee the safe production, and serves as a certain guidance and reference to the efficiency mining of spontaneous combustion coal seam.
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34

Zuo, Qiuling, Yujie Wang, and Jingshan Li. "Study on the oxidation and heating characteristics of residual coal in goafs under different air-leakage conditions." Thermal Science, no. 00 (2020): 314. http://dx.doi.org/10.2298/tsci200609314z.

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The spontaneous combustion of broken coal is one of the main causes for mine safety accidents in goafs. To determine the effect of different air-leakage conditions on the spontaneous combustion of leftover coal, the air-leakage passage of the goaf was designed based on the principle of Sudoku grid in an inflammable coal seam. The temperature rise during the auto-ignition oxidation of coal was studied using a self-built experimental platform. By changing the air flow rate, the laws of the change in the oxygen consumption rate and the heat-release intensity with the coal temperature were analyzed. Results show that the oxygen consumption rate had three obvious peaks at 48?C, 75?C and 105?C, respectively. Above 80?C, spontaneously combustion of the experimental coal samples began. The exothermic intensity increased exponentially with the rise of temperature. Furthermore, an exponential relationship was observed between the air supply at the working face and the spontaneous combustion of broken coal in the goaf. In addition, the increase in air supply in the fully-mechanized mining face increased the width of the oxidation zone.
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35

Chobotko, Ihor. "JUSTIFICATION OF METHODS AND TECHNIQUES FOR THE ELIMINATION OF SELF-DISPOSAL OF MINING WASTE." JOURNAL of Donetsk Mining Institute, no. 1 (2022): 166–71. http://dx.doi.org/10.31474/1999-981x-2022-1-166-171.

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Purpose. To analyse the processes of spontaneous combustion of mining waste, too study the impact of waste combustion on the environment, to define the main factors that provoke spontaneous combustion of mining waste. Methods. A comprehensive approach has been applied, which includes an analysis and synthesis of literature and experimental data on the problem of spontaneous combustion of mining waste. The current status of spontaneous combustion of mining waste has been analysed. Results. The feasibility of applying methods and techniques for the treatment of waste rock to further prevent spontaneous combustion has been substantiated Scientific novelty. The dependence of the environmental impact on the processes of thermal oxidation of waste rock mass has been established. The expediency of applying methods and techniques for eliminating self-combustion foci as the main factors of environmental pollution has been determined. A new expedient method and method has been proposed that will allow estimating not only the economic effect but also the environmental one, which will contribute to improving the environmental and economic situation of mining regions where mining wastes are deposited. Practical implication. Practical implication consists in the development of recommendations for methods and techniques to eliminate spontaneous combustion of mining wastes A methodology for determining the necessary quantitative and qualitative composition of inert substances (suspensions) containing sodium group to eliminate sulphurous zones of exogenous combustion processes of waste stock has been proposed. Recommendations on the use of these means and methods have been developed.
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36

Yu, Yen C., James C. Sisco, Stanford Rosen, Ajay Madhav, and William E. Anderson. "Spontaneous Longitudinal Combustion Instability in a Continuously-Variable Resonance Combustor." Journal of Propulsion and Power 28, no. 5 (September 2012): 876–87. http://dx.doi.org/10.2514/1.b34308.

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37

Gavrilov, A. V., and I. A. Korolchenko. "Way to assess the possibility of spontaneous combustion of microbiological products at storage." Izvestiya MGTU MAMI 6, no. 2-4 (December 20, 2012): 219–28. http://dx.doi.org/10.17816/2074-0530-68442.

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In the article the authors show the possibility of spontaneous combustion of microbiological products at storage. There is presented the methodology of calculation of spontaneous combustion conditions of the stored inventory. The authors suggest the algorithms to determine safe conditions for storing. The basic directions of activities for the prevention of spontaneous combustion in the microbiological at utility facilities are also presented.
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38

Yue-hong, Wang, Wu Yi, Zhang Jiu-ling, and Li Zhi. "Research on determining reasonable negative pressure based on the control of the goaf." Journal of Mines, Metals and Fuels 69, no. 4 (May 13, 2021): 121. http://dx.doi.org/10.18311/jmmf/2021/27799.

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In order to study the law of spontaneous combustion in goaf under the condition of gas extraction, the method of beam tube monitoring and numerical analysis is adopted to obtain three dimensional distribution of oxygen concentration and contour map under the condition of different negative pressure. Based on the way of regression analysis, reasonable negative pressure are determined. The results show that with the increase of negative pressure, the spontaneous combustion “three-zone” in goaf: the heat dissipation zone and the spontaneous combustion zone become wider and the suffocation zone narrows. At the same time, the trend of spontaneous combustion zone presents to the deep part of the goaf; the amount of gas extraction increases first and then decreases with the increase of negative pressure. Combined with the trend of spontaneous combustion zone and the amount of gas extraction in goaf, and the reasonable negative pressure value is 32kpa and verified.
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39

Zhao, Yu Xin, Chang Hua Chen, Fei He, and Jun Wen Li. "Research on ‘Three Zones’ of Goaf Spontaneous Combustion with U+L Ventilation." Applied Mechanics and Materials 598 (July 2014): 753–57. http://dx.doi.org/10.4028/www.scientific.net/amm.598.753.

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In order to study “three zones” of goaf spontaneous combustion with U+L ventilation mode working face. Numerical simulation is used to simulate the distribution law of “three zones” of goaf spontaneous combustion in case of different distance between crossheading and working face, and different air quantity. Research suggests that the “three-zones” of spontaneous combustion has great influence with different distances and different supplied air volume.
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40

Coulehan, Jack. "Mary Clues Dies of Spontaneous Combustion." Annals of Internal Medicine 157, no. 3 (August 7, 2012): 224. http://dx.doi.org/10.7326/0003-4819-157-3-201208070-00027.

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41

Di Benedetto, A., F. S. Marra, and G. Russo. "Spontaneous oscillations in lean premixed combustion." Combustion Science and Technology 174, no. 9 (September 2002): 131–47. http://dx.doi.org/10.1080/00102200290021407.

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42

West, John B. "Spontaneous Combustion, Dickens, Lewes, and Lavoisier." Physiology 9, no. 6 (December 1, 1994): 276–78. http://dx.doi.org/10.1152/physiologyonline.1994.9.6.276.

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43

Gong, Rose, John Burnell, and Graeme Wake. "Modelling spontaneous combustion in wet lignite." Combustion Theory and Modelling 3, no. 2 (June 1999): 215–32. http://dx.doi.org/10.1088/1364-7830/3/2/001.

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44

Byard, Roger W. "The mythology of “spontaneous” human combustion." Forensic Science, Medicine, and Pathology 12, no. 3 (February 12, 2016): 350–52. http://dx.doi.org/10.1007/s12024-016-9748-2.

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45

Pan, Rong Kun, Li Gang Zheng, Ming Gao Yu, and Chang Lu. "Research of New Material Restraining Coal Spontaneous Combustion by the Way of Release Water Mist." Advanced Materials Research 548 (July 2012): 807–11. http://dx.doi.org/10.4028/www.scientific.net/amr.548.807.

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In order to control the coal spontaneous combustion, a new material to restrain coal spontaneous combustion was researched in this paper. Through the platform of experimental was built, and the material was released by water mist, the characteristics of new material and water mist was used, and then researched the change concentration of O2, CO and CO2 in experimental platform under this new material, the change of temperature in different parts of burning space. As the same time, we contrast studied added material or not when the coal spontaneous combustion, the data and phenomenon were analyzed in experimental and the mechanism of restraining was put. This studies show that the material has good effect with restraining when adding this material by water mist to coal spontaneous combustion.
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46

Wang, Yan-Ming, Wen-Zheng Wang, Zhen-Lu Shao, De-Ming Wang, and Guo-Qing Shi. "TERAHERTZ MEASUREMENT OF INDICATOR GAS EMISSION FROM COAL SPONTANEOUS COMBUSTION AT LOW TEMPERATURE." Ecological Chemistry and Engineering S 20, no. 4 (December 1, 2013): 709–18. http://dx.doi.org/10.2478/eces-2013-0049.

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Abstract Coal spontaneous combustion is an extremely complicated physical and chemical changing process. In order to improve the indicator gases detection technology and coal spontaneous combustion monitoring, a novel forecast method for toxic gases emission from coal oxidation at low temperature is presented in this paper. The experiment system is setup combined with frequency-domain terahertz technology and coal temperature programming device. The concentration curves of carbon monoxide and sulphur dioxide gases from coal spontaneous combustion are estimated according to molecule terahertz spectra. The influences of coal rank and oxygen supply on coal spontaneous combustion characteristics are discussed. Both carbon monoxide and sulphur dioxide gases absorption spectra show the characteristic equi-spaced absorption peaks. Results demonstrate that under the condition of lean oxygen, there exists a critical oxygen concentration in the process of coal oxidation at low temperature. Comparing with Fourier infrared spectrum testing, the presented method is highly accurate and more sensitive, especially suitable for early-stage monitoring of the indicator gases produced by coal spontaneous combustion.
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47

Qin, Cunli, Qiming Huang, Shibin Wang, Jun Li, Shuang Ju, and Gang Wang. "Prevention and Control of Spontaneous Combustion of Residual Coals in Acid-Soaked Goaf in Gas Drainage Condition." Advances in Civil Engineering 2022 (February 25, 2022): 1–15. http://dx.doi.org/10.1155/2022/1668952.

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With the increase of mine mining intensity, the scope of goaf continues to expand, a large amount of coal remains in goaf, and the spontaneous combustion fire of coal is particularly serious. In addition, the spontaneous combustion of coal under the condition of gas mining is not clear. At once, spontaneous combustion can induce gas explosion, resulting in the waste of manpower and material resources, bringing hidden dangers to the mine safety production. In order to prevent and control the fire caused by spontaneous combustion of left coal under the condition of gas mining, in this paper by means of laboratory test, field measurement, and numerical simulation, the law of spontaneous combustion of residual coal under gas mining is studied. The index gas of coal spontaneous combustion was determined by temperature-programmed experimental device. Secondly, the distribution of the stope working face, goaf, and O2 is discussed. It is of great significance to study the spontaneous combustion rule of three belts in goaf under acid leaching condition and then to discuss the best position of injection idling opening and put forward targeted precontrol measures, which is of great significance to guarantee the safety of mine production. The results show that CO begins to appear when the temperature rises to 40 °C, and its concentration increases exponentially with the increase of coal temperature, which can reflect the degree of coal oxidation in goaf. Therefore, CO should be selected as the indicator gas in the working face. Under the influence of negative drainage pressure, the dangerous area will be enlarged. The optimal drainage volume of high drainage roadway is 90 m3/min, and the optimal air intake volume of working face is 1400 m3/min. The area 0–34 m away from the working face is scattered zone, 34–135 m away is spontaneous combustion zone, and 135 m away is asphyxiation zone. When the position of the idler is 50 m behind the working face, the reduction of the oxidation zone is the largest.
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Patil, Tulsi, Arun Soni, and Sanjeev Acharya. "A Review On Brief Insight Into Spontaneous Human Combustion." Asian Journal of Pharmaceutical Research and Development 9, no. 3 (June 15, 2021): 89–93. http://dx.doi.org/10.22270/ajprd.v9i3.935.

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The pseudoscientific principle of spontaneous human combustion (SHC) is the combustion of a living human body without an obvious external cause of ignition. Spontaneous Human Combustion eludes condition in which human body is found with huge segments of center parts of body reduced to fiery debris and substantially less harm to the head and extremities, and insignificant harm to the immediate surroundings of the body. The review was aimed to find the possible causalities of Spontaneous Human Combustion. There are basically two types of SHC and the etiology are found on the basis of some hypothesis. All the possible causative factors are covered and a treatment approach is also provided.
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Tian, Jiaxin, Kai Pan, Zhihui Lang, Rui Huang, Wenrui Sun, Hanyu Chu, Haotong Ren, et al. "Thermodynamics of Imidazolium-Based Ionic Liquids for Inhibiting the Spontaneous Combustion of Sulfide Ore." Sustainability 14, no. 13 (June 29, 2022): 7915. http://dx.doi.org/10.3390/su14137915.

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Spontaneous combustion of sulfide ore is one of the most common disasters in the process of ore mining, storage, and transportation, which can lead to a series of safety and environmental problems, thus affecting sustainable development in society. In this paper, four imidazolium-based ionic liquids: [BMIM][I], [BMIM][BF4], [EMIM][BF4], and [BMIM][NO3], were selected for inhibition experiments with sulfide ores to reveal the inhibition performance of ionic liquids against spontaneous combustion. The results show that the main products from the reaction were Fe2O3 and SO2, produced during the process of oxidation and spontaneous combustion and that the reaction moves towards a higher temperature under the action of ionic liquid, indicating that ionic liquids have a significant inhibition effect on the spontaneous combustion of sulfide ore. At the same temperature, the apparent activation energies of the samples treated with ionic liquids were all greater than those of the control samples, indicating that imidazolium-based ionic liquids can effectively reduce the spontaneous combustion tendency of sulfide ores. In addition, compared with other ionic liquids, [BMIM][NO3] had a more pronounced inhibition effect, with the activation energies of both ore samples maximally increased by 8.4% and 10.2% after [BMIM][NO3] treatment. This is due to the ability of [BMIM][NO3] to better isolate the samples from oxygen in the air and reduce the effective collisions between active molecules, thus inhibiting and retarding the spontaneous combustion of sulfide ores.
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Gao, Fei, Zhe Jia, Mei-ling Qin, Xiao-gang Mu, Yi-fei Teng, Ying-di Li, and Qi-hui Bai. "Effects of organic sulfur on oxidation spontaneous combustion characteristics of coking coal." Energy Exploration & Exploitation 40, no. 1 (October 5, 2021): 193–205. http://dx.doi.org/10.1177/01445987211049045.

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Research on the spontaneous combustion of coal caused by sulfur has always been focused on pyrite in coal but has rarely considered the influence of organic sulfur. In this paper, coal samples, rather than model compounds, were used to study the influence of organic sulfur content in coal on its spontaneous combustion process. The results of X-ray photoelectron spectroscopy and thermogravimetry, differential scanning calorimetry, and mass spectrometry indicate that organic sulfur in Shuiyu clean coal exists in forms of mercaptan, thioether, sulfone (sulfoxide), and thiophene. With the decrease of organic sulfur content, the characteristic temperature points and the peak values of the exothermic curves in the process of coal oxidation spontaneous combustion all shifted toward higher temperatures. The ignition activation energy of coal also increased, and the initial and peak gas evolution temperatures of the oxidation products shifted toward higher temperatures. These findings suggest that the reduction of organic sulfur content can inhibit the oxidation process and spontaneous combustion tendency of coal. This effectively reveals the mechanism of the spontaneous combustion of coal and is of great significance to future studies in this field.
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