Article
Thermodynamics
Mei-Lin Zhang, Xi-Lin Dong, Yan Tang, An-Chi Huang, Fang Chen, Qing-Chun Kang, Zhong-Jun Shu, Zhi-Xiang Xing
Summary: In this study, a new type of composite fire-extinguishing powder was prepared and characterized for its morphology, structure, and thermal stability. The results showed that the powder had a smaller particle size and higher thermal stability compared to the unmodified counterpart. It was also found that the combination of sodium carbonate and expandable graphite had a synergistic effect on flame suppression and improved the fire-extinguishing efficiency.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Engineering, Environmental
Weixiang Ma, Qihua Ma, Yanyun Zhao, Xiangming Hu, Zhenglong He, Lihui Chi, Xiaoxiao Zhao, Yuxin Zhao, Feng Sun, Chunyan Chu
Summary: A sludge-based fire-preventive and extinguishing composite gel was prepared using sludge, HPAM, water glass, and sodium bicarbonate as the main raw materials. The effects of each component and its level on the gel's performance were analyzed using orthogonal test to determine the optimal ratio. The gel showed excellent fire-preventive and extinguishing characteristics and had a dense microstructure and uniform pores.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Construction & Building Technology
Huaxiang Li, Guowei Zhang, Boyan Jia, Guoqing Zhu, Dong Guo, Peng Zhang
Summary: LN2 is a highly promising extinguishing agent for urban utility tunnel fires due to its rapid cooling and inerting effects. Horizontal injection of LN2 is more effective when the release distance is greater, while vertical injection is more effective when the nozzle is farther from the fire source.
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
(2021)
Article
Thermodynamics
Jingxin Wang, Yuexuan Fu, Baolin Qu, Cheng Chang, Xinyi Wen, Xinhang Ma, Guangyuan Wang, Bing Wu
Summary: The sealing time plays a crucial role in the effectiveness of firefighting and the safety of rescue personnel. This study experimentally investigated the fire behaviors and smoke temperature of coal mine blind roadway fires under different sealing times. The research conclusions provide theoretical guidance for extinguishing fires in blind roadways.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2023)
Article
Environmental Sciences
Xiyang Fang, Bo Tan, Haiyan Wang, Feiran Wang, Zhuang Zhuang Shao, Changfu Xu, Shaojie Zheng
Summary: Coal spontaneous combustion in the gob poses a significant threat to coal mining operations. This study establishes a multi-field coupling equation and determines the optimal nitrogen injection parameters through on-site verification and simulation analysis, providing valuable insights for preventing and controlling fires.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Thermodynamics
Kaili Dong, Junfeng Wang, Yulong Zhang, Zewen Liang, Qi Shi
Summary: A new type of fire-suppression polymer gel with strong stability has been developed to prevent and extinguish mine fires more efficiently. The optimal formula was determined through testing the gelation time and measuring different properties of the gel. The gel was found to have good thermal stability, flowability, and significant effects on suppressing CO emission during coal oxidation.
COMBUSTION SCIENCE AND TECHNOLOGY
(2022)
Article
Thermodynamics
Chang Tian, Jinlong Zhao, Junhui Yang, Jianping Zhang, Rui Yang
Summary: In this study, a novel gel-protein foam was developed and its fire extinguishing and burnback performance were evaluated. The results showed that the gel-protein foam with the best formulation demonstrated higher fire extinguishing efficiency and longer burnback time, indicating its potential application in extinguishing oil storage tank fires.
Article
Ecology
Miroslav Betus, Martin Koncek, Marian Sofranko, Jozef Cambal, Marek Ondov
Summary: This study characterized the method of fire extinguishing using fire protection units with components of the Integrated Rescue System based on a real fire scenario in an electricity-producing object. It examined the effectiveness of this type of fire extinguishing in collaboration with other components of the Integrated Rescue System, as well as the intervention's effectiveness in rescuing people from the fire-endangered building using nearby forces and resources. The study also considered the time factor, material and technical equipment, and security in evaluating the fire-extinguishing and evacuation capabilities. The results were used to determine conclusions and recommendations for future fires in similar objects.
Article
Thermodynamics
Xin Li, Guowei Zhang, Guoqing Zhu, Diping Yuan, Dong Guo
Summary: This study investigated the effect of blocking on the fire extinguishing efficiency of liquid nitrogen in long and narrow spaces. The results showed that the combined action of liquid nitrogen and blocking led to oxygen insulation and suffocation, with blocking accelerating the asphyxiation process. Selecting reasonable blocking measures and optimizing sealing methods can maximize the effectiveness of liquid nitrogen fire extinguishing.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Bin Yao, Guoqing Zhu, Wanhai Guo, Fanbao Chen, Zhan Wang, Xin Xu
Summary: This study conducted a series of experiments using diesel, ethanol, and n-heptane as fuels, with sand as the fire extinguishing material, to investigate the mechanism and effects of sand throwing as a fire extinguishing method. The results suggest that the main mechanism of sand throwing to extinguish pool fire is to cover the fuel to isolate combustibles and oxygen, and sand has good coverage and suffocation performance.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Engineering, Chemical
Tao Liu, Xiao-Yu Yin, Ye-Cheng Liu, Yan Tang, An-Chi Huang, Xi-Lin Dong, Yuan-Jun Liu
Summary: This paper investigated the suppression influence of water mist on oil pool fires, focusing on diesel fires and n-heptane fires as experimental objects. The effects of spray pressure and temperature on water mist suppression were examined, and the fire prevention performance and fire extinguishing mechanisms were analyzed. Factors affecting the fire extinguishing effect of water mist on oil pool fire were discussed.
Article
Engineering, Multidisciplinary
Harshad Shrigondekar, Arindrajit Chowdhury, S. V. Prabhu
Summary: The study conducted experimental investigations on the performance of water mist nozzles in extinguishing pool fires of various sizes fueled by diesel and heptane. Through videography, the extinction performances of four nozzles with different orifice diameters were compared and an empirical correlation for extinction time was reported. Observations of the interactions of the spray with the fuel surface highlighted potential undesired phenomena in the application of water mist systems.
Article
Thermodynamics
Qi Zhao, Yi Li, Xianfeng Chen
Summary: The study demonstrates that the explosion suppression system can effectively hinder flame propagation of methane/coal dust explosions, reduce explosion pressure, and suppress flames. The fire extinguishing and explosion suppression mechanisms of N2/APP were summarized in the research.
Article
Engineering, Chemical
Xin-Yue Ma, Fang-Chao Cao, Hai-Lin Zhou, Ye-Cheng Liu, Yan Tang, Qing-Chun Kang, Zhong-Jun Shu, Xi-Lin Dong, An-Chi Huang
Summary: In this study, expandable graphite was modified with zinc borate and the modified material, EGZB, showed smaller particle size, higher thermal stability, higher fire-extinguishing speed, and lower consumption than unmodified expandable graphite. The mechanism of fire extinguishing by EGZB was through capturing free radicals and strengthening covering and asphyxiation. This study provides crucial information for controlling fires caused by active metals and metallo-organic compounds.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2023)
Article
Engineering, Environmental
Yan Cui, Jianghong Liu
Summary: This paper provides a detailed overview of the mechanisms and influencing factors of water mist fire extinguishing technology, as well as its research in the field of battery fires, and predicts future development directions and prospects.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Engineering, Chemical
Bobo Shi, Fubao Zhou
PROCESS SAFETY PROGRESS
(2017)
Article
Thermodynamics
Chengyun Xin, Lang Lu, Bobo Shi, Liu Zhongxin
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2018)
Article
Nanoscience & Nanotechnology
Min Hao, Xiaolin Song, Haitao Shi, Fubao Zhou, Bobo Shi
Review
Materials Science, Multidisciplinary
He-tao Su, Fu-bao Zhou, Bo-bo Shi, Hai-ning Qi, Jin-chang Deng
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2020)
Article
Thermodynamics
Jinchang Deng, Fubao Zhou, Bobo Shi, Jose L. Torero, Haining Qi, Peng Liu, Shaokun Ge, Zhiyu Wang, Chen Chen
Article
Mining & Mineral Processing
Sihua Shao, Chunlei Wu, Min Hao, Xiaolin Song, Xueyou Su, Weihan Wang, Guosheng Li, Bobo Shi
Summary: The novel coating technology developed using water pressure and wind pressure ensures intrinsic safety and is safe, efficient, and convenient to operate. It effectively controls air leakage, dust concentrations, and rebound ratio, demonstrating excellent prevention of air leakage in underground coal mines.
INTERNATIONAL JOURNAL OF MINING SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Chemical
Bobo Shi, Zhiyu Wang, Peng Liu, Fubao Zhou, Chengyang Peng
Summary: This study analyzed the crystallinity, surface morphology, and chemical composition of combustion metamorphic rocks, and found that they exhibit pozzolanic activity. The results provide important guidance for the post-treatment of combustion metamorphic rocks and coal-fire control in areas with loess deficiency.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2021)
Article
Thermodynamics
Xiao-Wei Zhai, Chong Yang, Bo-Bo Shi, Hui Ge, Shi-Bo Wu
Summary: The study focused on using microcapsule materials to prevent coal spontaneous combustion, showing that these materials effectively reduce the rate of coal-oxygen composite reaction and delay the process of coal spontaneous combustion.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Engineering, Environmental
Bobo Shi, Chen Chen, Peng Liu
Summary: Using combustion metamorphic rock as a grouting material to replace loess is an effective method for mitigating coal fire disasters. It shows good stability and rheological properties, with the optimal composition determined to be a 0.6:1 water-cement ratio and 40 wt.% combustion metamorphic rock.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2021)
Article
Environmental Sciences
Jinchang Deng, Shaokun Ge, Haining Qi, Fubao Zhou, Bobo Shi
Summary: The study reveals that long-term spontaneous combustion of coal can have serious impacts on the atmosphere, prompting increased research attention. Through field surveys and modeling analysis, it was found that air pollution in coal fire areas is mainly influenced by combustion conditions and thermophysical parameters. Factor analysis indicates that these areas are primarily affected by sulfur oxides pollution.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Energy & Fuels
Tianyu Chen, Wei Xiong, Guanglei Cui, Hongwen Yu, Derek Elsworth, Bobo Shi, Xiating Feng, Zhejun Pan
Summary: This study proposes a dual-component effective-medium approach to address the limitations of microwave heating in rocks. The temperature evolution in rocks exhibits a three-stage profile, mainly influenced by the peak in the specific heat capacity-temperature curve. High heat transfer coefficient conditions show all three stages in both systems, while low heat transfer coefficient conditions do not.
GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
(2021)
Article
Engineering, Environmental
Shaokun Ge, Bobo Shi, Shuai Zhang, Xiaowei Zhai, Chunlei Wu
Summary: The study found that the mechanical strength of sandstone decreases after exposure to high temperatures, with a critical threshold temperature of 400 degrees Celsius, beyond which the mechanical strength rapidly degrades.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2022)
Article
Geochemistry & Geophysics
Xiaolin Song, Chunlei Wu, Chun Liu, Yanlong Li, Zhiyu Wang, Bobo Shi
Summary: The study found that with increasing injection of N-2 and CO2, the range and width of the oxidation zone decreased, and the loose and oxidation zones moved closer to the working face. The migration profile of CO2 and N-2 differed, and under the same inerting flow rate, the effect of CO2 on oxygen reduction was much less significant than that of N-2.
Article
Energy & Fuels
Hetao Su, Ning Kang, Bobo Shi, Huaijun Ji, Yunzhuo Li, Jingdong Shi
Summary: This study investigates the dynamical oxygen-lean combustion behaviors of coal in a multi-gas concomitant atmosphere. It was found that there is a delay phenomenon in coal lean-oxygen combustion in O-2/N-2/CO2 atmosphere. Additionally, the low heat conduction coefficient of CO2 plays a dominant role in the changes observed during combustion.
JOURNAL OF THE ENERGY INSTITUTE
(2021)
