Article
Engineering, Environmental
Peng Liu, Jinyang Fan, Deyi Jiang, Jiajun Li
Summary: Underground gas extraction from coal formations has triple-effects involving mining safety, low-carbon gas capture, and greenhouse gas control; Air leakage around the drainage borehole is a serious issue affecting gas drainage performance; Controlling the permeability around the borehole and coal matrix parameters can improve gas drainage efficiency.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Engineering, Environmental
Ke Gao, Shengnan Li, Yujiao Liu, Jinzhang Jia, Xiaoqi Wang
Summary: This study investigated the impacts of flexible obstacles on gas explosion propagation in tunnels using numerical simulation models. It was found that flexible obstacles significantly affected the flame propagation law, causing wrinkles in the flame shape and changing maximum pressure and flame propagation speed.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Energy & Fuels
Aitao Zhou, Zhiyuan Xu, Kai Wang, Yanhai Wang, Jingyu An, Zhan Shi
Summary: Gas drainage is a key measure to prevent coal and gas disasters. This study combines numerical simulation and field experiment to optimize the extraction parameters of intubation spacing and extraction negative pressure in Buertai Coal Mine. A three-dimensional gas distribution model is established and COMSOL software is used for calculation. The results show that ideal gas drainage effect can be achieved at a negative pressure of 12-18 kPa within the range of 50 m-70 m.
Article
Construction & Building Technology
Jitao Cai, Jiansong Wu, Shuaiqi Yuan, Desheng Kong, Xiaole Zhang
Summary: This study proposes a three-dimensional source term estimation (3D-STE) model using computational fluid dynamics (CFD) and ensemble Kalman filter (EnKF) algorithm to predict gas concentration and estimate gas leakage sources. The model is validated through a twin experiment, showing its effectiveness and practicality.
SUSTAINABLE CITIES AND SOCIETY
(2022)
Article
Energy & Fuels
Haijun Guo, Hanlu Tang, Yuchen Wu, Kai Wang, Chao Xu
Summary: Coal is a complex dual-porosity porous medium composed of fractures and coal matrices. The gas seepage characteristics in coals are closely related to the coal matrix-fracture structures and can be simplified to equivalent scale characteristics. A simplified permeability evolution model and a method for measuring permeability in coal seams were proposed, enriching the theory of gas seepage and laying a foundation for studying the evolution mechanism of coal permeability during plastic deformation.
Article
Engineering, Environmental
Yifan Zhang, Fubao Zhou, Jinshi Li, Jianhong Kang, Chun Liu, Ning Li, Shunlin Pan
Summary: This study proposes a new approach based on turbulent drag reduction theory to significantly improve the efficiency of liquid ring vacuum (LRV) pumps, which have been inefficient for many years. A new kind of drag-reducing working fluid (DRWF) and a supporting closed energy-efficiency system are developed. Industrial-scale measurements show that this approach can achieve approximately 10% pump efficiency improvement and a maximum energy-saving rate of 21-24%. Cost-effectiveness analysis indicates the economic viability of this method. This technology has been commercially applied in coal mine gas drainage systems, leading to a 15-22% electricity saving rate and a carbon emissions reduction of 987 tons per year, contributing to China's carbon peak and neutrality goals.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Thermodynamics
Xin Yang, Gongda Wang, Feng Du, Longzhe Jin, Haoran Gong
Summary: This study conducted exploratory tests of N-2-ECGD in underground low-gas coal seams, finding that continuous N-2 injection can promote the desorption of CH4 in the coal pores. Field trials showed an EPI of 0.45 MPa, with a significant increase in gas flow rate after N-2 injection, while the CH4 concentration decreased but the CH4 flow rate remained high.
Article
Energy & Fuels
Yubing Liu, Zuxun Zhang, Bozhi Deng, Minghui Li
Summary: Outbursts are the predominant natural hazards in Chinese underground coal mines. Extracting high content gas within coal seams is an effective way to reduce the risk of triggering outbursts. However, conventional gas drainage may fail due to the low permeability of coal seams at greater depths. This study proposes the use of liquid carbon dioxide fracturing to enhance gas drainage efficiency in a Chinese coal mine with low permeability coal seams. The results suggest that the application of liquid carbon dioxide fracturing is effective for gas control and hazards prevention in underground coal mines.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Geosciences, Multidisciplinary
Zhiheng Cheng, Hui Pan, Quanle Zou, Zhenhua Li, Liang Chen, Jialin Cao, Kun Zhang, Yongguo Cui
Summary: With the increasing demand for coal resources, coal has been mined in deep coal seams, leading to great risks of coal and gas outburst. Protective coal seam mining, as a safe and effective method for gas control, has been widely used. This study investigated stress-seepage coupling laws and permeability characteristics of a protected coal seam during the process of protective coal seam mining.
NATURAL RESOURCES RESEARCH
(2021)
Article
Metallurgy & Metallurgical Engineering
Aditya Juganda, Claire Strebinger, Jurgen F. Brune, Gregory E. Jr Jr Bogin
Summary: Methane gas explosions pose a major risk in underground coal mining, potentially causing significant loss of life and damage to mine infrastructure. Computational fluid dynamics modeling can help assess the potential damage and study the impact of methane gas explosions on mine ventilation.
MINING METALLURGY & EXPLORATION
(2022)
Article
Chemistry, Multidisciplinary
Shiyao Yu, Xianbo Su, Jinxing Song, Qian Wang, Zhenjiang You
Summary: This paper investigates the sealing quality of gas extraction holes and its impact on the extracted gas concentration. A hole sealing technology using solid-liquid materials with three pluggings and two injections is proposed. Field tests demonstrate that this technology can enhance the sealing effect of gas extraction holes and improve the recovery rate of gas concentration.
Article
Multidisciplinary Sciences
Navin Prasad, Bindhu Lal
Summary: Coal mining is a crucial aspect of the Indian economy, but the health and safety of miners working in underground mines, particularly in relation to ventilation systems, is a serious concern. Computational fluid dynamics is a major tool used to study airflow distribution in order to address potential risks and ensure the safety of mineworkers.
Article
Chemistry, Multidisciplinary
Jianhua Fu, Dengke Wang, Xuelong Li, Zhiming Wang, Zhengjie Shang, Zhigang Jiang, Xiaobing Wang, Xin Gao
Summary: Gas drainage is crucial in preventing gas disasters, with sealing materials playing a critical role in its effectiveness. Research on the configuration and characteristics of sealing materials has shown that factors such as suspension concentrate dosage, water-cement ratio, and special cement amount influence the fluidity and setting time of the slurry. The study also found that specific proportions of various components can optimize the sealing effect and porosity of cement-based materials.
Article
Energy & Fuels
Peng Liu, Long Fan, Quangui Li, Fangxiang Zhong
Summary: This study demonstrates the effectiveness of high power ultrasound in enhancing coalbed methane recovery through in-situ testing in an underground coal seam, showing the potential application value of ultrasound anti-reflection technology in coalbed methane production.
Article
Acoustics
Xin Guo, Sheng Xue, Yaobin Li, Chunshan Zheng, Linfang Xie
Summary: Gas drainage is an important means of gas control in coal mines. This study investigated the influence of the key position of the sealing hole on gas drainage, and proposed that the key position should be in the prepeak stress concentration area for optimal results. Field testing showed that a sealing area of 8-16 meters resulted in the best gas drainage effect.
SHOCK AND VIBRATION
(2021)
Article
Engineering, Industrial
Jiansong Wu, Jitao Cai, Shuaiqi Yuan, Xiaole Zhang, Genserik Reniers
Summary: This paper proposes a three-dimensional model for predicting LNG vapor dispersion and estimating the strength of the leakage source, using a combination of CFD and EnKF. The effectiveness of the proposed model is validated through a twin experiment, showing improved prediction accuracy of LNG vapor spatial-temporal distribution under complex environments. These findings provide technical support for safety control and emergency response in case of LNG leakage accidents.
Review
Engineering, Industrial
Shuaiqi Yuan, Ming Yang, Genserik Reniers, Chao Chen, Jiansong Wu
Summary: This paper provides an overview of the development of safety barriers in chemical plants, including their definition, classification, evaluation, and management. It proposes a practical classification of safety barriers and extends their functions using the concept of resilience. Performance assessment criteria are suggested, and the management of safety barriers is discussed. A roadmap for future studies to develop integrated management of safety and security barriers for chemical plants is also provided.
Article
Computer Science, Information Systems
Miaomiao Hou, Xiaofeng Hu, Jitao Cai, Xinge Han, Shuaiqi Yuan
Summary: Crime issues have attracted widespread attention and data-driven spatial-temporal crime prediction is an effective technique to prevent and control urban crimes. However, the daily spatial-temporal crime prediction at the urban-district-scale needs improvement. To address this, an online integrated graph model is proposed, which combines different algorithms and features to enhance crime prediction accuracy. The results show that this model outperforms other models and has great potential for police resource allocation and decision making.
ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION
(2022)
Article
Construction & Building Technology
Jitao Cai, Jiansong Wu, Shuaiqi Yuan, Desheng Kong, Xiaole Zhang
Summary: This study proposes a three-dimensional source term estimation (3D-STE) model using computational fluid dynamics (CFD) and ensemble Kalman filter (EnKF) algorithm to predict gas concentration and estimate gas leakage sources. The model is validated through a twin experiment, showing its effectiveness and practicality.
SUSTAINABLE CITIES AND SOCIETY
(2022)
Article
Engineering, Environmental
Yiping Bai, Jiansong Wu, Shuaiqi Yuan, Genserik Reniers, Ming Yang, Jitao Cai
Summary: This paper elaborates on a resilience assessment model for the natural gas compartment of utility tunnels based on numerical simulation considering interacting barrier modeling. Recommendations for ventilation strategies and sensor layouts can be made based on calculated resilience for casualty and economic loss, with optimization possible. The delay effect of safety barriers is investigated, along with the exploration of unequal interval layouts of sensors which are proven to be effective without additional costs.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2022)
Article
Engineering, Industrial
Shuaiqi Yuan, Jitao Cai, Genserik Reniers, Ming Yang, Chao Chen, Jiansong Wu
Summary: This paper proposes an approach integrating event tree analysis, computational fluid dynamics simulation, and evacuation modeling for risk assessment of toxic gas leakage accidents. The results show that considering the failure probabilities of technical safety barriers can avoid underestimating individual fatality risks, and timely gas detection & alarm can help reduce individual fatality risks.
RELIABILITY ENGINEERING & SYSTEM SAFETY
(2022)
Article
Green & Sustainable Science & Technology
Fuqiang Yang, Yong Guo, Yong Lai, Yidu Hong, Shuaiqi Yuan
Summary: This study characterizes the reaction processes of emulsion explosive matrix and sulfide ores, as well as ammonium nitrate and pyrite, using thermodynamics analysis. The results show that the thermal stability of the samples is affected by the addition of different substances, and the reaction processes can be divided into different stages.
Article
Engineering, Environmental
Shuaiqi Yuan, Genserik Reniers, Ming Yang, Yiping Bai
Summary: Chemical plants are exposed to safety hazards and security threats, which can lead to catastrophic incidents. Managing safety and security barriers effectively and economically is crucial for cost-effective maintenance. This study proposes a novel approach to optimize safety and security barrier maintenance strategy considering economic constraints.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Review
Engineering, Environmental
Yuanyuan Xu, Genserik Reniers, Ming Yang, Shuaiqi Yuan, Chao Chen
Summary: This paper reviews the literature on quantitative risk assessment (QRA) of domino accidents in the chemical process industries. The sources of uncertainty in risk assessment of domino effects are identified and categorized. The current methodologies and approaches for handling various uncertainties in QRA related to domino effects are reviewed. This study provides insights into the uncertainty fundamentals and the current status of uncertainty handling in QRA of domino effects, and promotes the development of new approaches for handling uncertainty in domino accident analysis.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Engineering, Chemical
Xing-lin Chen, Wei-Dong Lin, Chun-Xiang Liu, Fu-Qiang Yang, Yong Guo, Xin Li, Shuai-Qi Yuan, Genserik Reniers
Summary: Natural gas pipeline construction is growing rapidly worldwide, but leakage accidents are frequent and cause significant losses. However, there are few models to describe and assess the consequences of these accidents. This study proposes a comprehensive risk analysis model, called EDIB model, to analyze the evolution process of leakage accidents and conduct probabilistic risk assessments.
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2023)
Review
Green & Sustainable Science & Technology
Xinglin Chen, Fuqiang Yang, Shuo Cheng, Shuaiqi Yuan
Summary: The article reviews the development processes, current status, and future prospects of occupational health and safety (OHS) in China. Through bibliometric analysis, key research topics, research methods, and collaboration networks are discussed. Suggestions for future work are provided to accelerate the development of OHS in China, including the prevention and control of occupational diseases, protection of workers' rights and interests, and the development of advanced technologies and risk assessment models for OHS. The study offers valuable insights for researchers and practitioners involved in OHS development in China.
Article
Ecology
Fuqiang Yang, Xin Li, Shuaiqi Yuan, Genserik Reniers
Summary: This study proposes an integrated approach combining association rule learning, Bayesian network, and fuzzy set theory to target the challenges in risk analysis of laboratory fire accidents, with a specific focus on Chinese universities. The approach derives conditional probabilities of Bayesian network nodes based on historical accident data and association rules, and utilizes expert elicitation through an augmented fuzzy set method. The results obtained from the developed fuzzy Bayesian network model indicate that bad safety awareness, improper storage of hazardous chemicals, environment with hazardous materials, and inadequate safety checks are the four most critical factors inducing laboratory fire accidents.
Review
Management
Genevieve Cyr, Marie-Pascale Pomey, Shuaiqi Yuan, Karl-Emanuel Dionne
Summary: User engagement is crucial for sustainable healthcare innovation, and Living Labs (LLs) are a promising approach to integrate users' knowledge. However, there is a lack of systematic understanding of effective user engagement. This scoping review maps current research on user engagement in Healthcare Living Labs (HLLs) and provides methods for innovation managers to enhance user engagement.
INTERNATIONAL JOURNAL OF INNOVATION MANAGEMENT
(2022)
Article
Engineering, Chemical
Jiansong Wu, Zhe Liu, Shuaiqi Yuan, Jitao Cai, Xiaofeng Hu
JOURNAL OF LOSS PREVENTION IN THE PROCESS INDUSTRIES
(2020)
Article
Engineering, Environmental
Xingxing Hu, Lingjie Liu, Yanmeng Bi, Lu Li, Chunsheng Qiu, Jingjie Yu, Shaopo Wang
Summary: In this study, the impact of exogenous folate on the start-up process of single-stage partial nitritation-anammox (SPNA) was evaluated using two lab-scale reactors. The results showed that folate addition can enhance nitrogen removal rate, extracellular polymeric substances production, hydrazine oxidase and dehydrogenase activity, as well as the relative abundance of Candidatus Brocadia.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Shaocang He, Tingting Shen, Jing Sun, Haoqi Pan, Chenxu Sun, Tianpeng Li, Runyao Li, Enshan Zhang
Summary: A novel process of acid leaching neutralization was developed for the preparation of inorganic polymeric composite ferric aluminum silicate coagulant (CFAS) using solid waste coal gasification coarse slag (CGCS). The optimized preparation process was determined through single-factor experiment and the performance of CFAS was evaluated for domestic sewage treatment. The results showed that CFAS exhibited excellent coagulation ability and achieved significant removal efficiency for turbidity, ammonia nitrogen, and chemical oxygen demand.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Kinga Szatmari, Sandor Nemeth, Alex Kummer
Summary: In this article, a resilience-based reinforcement learning approach is proposed to address the potential thermal runaway issue in batch reactors. By calculating the resilience metric for reactors and utilizing Deep Q-learning to decide when to intervene in the system, resilient-based mitigation systems can be effectively developed.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Bingyou Jiang, Qi Yao, Mingqing Su, Jingjing Li, Kunlun Lu, Dawei Ding, Han Hong
Summary: This study investigates the inhibitory characteristics and mechanisms of ABC powder on coal powder explosion. The addition of ABC powder significantly decreases the maximum explosion pressure and can completely suppress coal dust explosions. The study also reveals the thermal decomposition characteristics and reaction kinetics of the mixed system.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Kubilay Bayramoglu, Mustafa Nuran
Summary: This study examines the feasibility of using pyrolytic oil from waste tires as fuel in diesel engines, and evaluates its energy, exergy, and sustainability. The results indicate that pyrolytic oil has potential as a renewable fuel source with relatively high thermal efficiency.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Xinru Duan, Yejia Lv, Jiaxing Hong, Jianzhong Wu, Jia Zhang, Yang Yue, Guangren Qian
Summary: This study successfully prepared a tube reactor with optimized catalyst formula, which showed good performance in removing dioxins and other pollutants in the experiments.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Jiaoyang Du, Xueming Dang, Xiaorong Gan, Xin Cui, Huimin Zhao
Summary: In this study, a photocatalyst-enzyme hybrid system was constructed, which solved the issue of enzyme inactivation caused by high concentration of H2O2 through photocatalytic in-situ H2O2 production, and improved the stability and catalytic efficiency of the enzyme. The effectiveness of the system in treating phenolic EDCs was confirmed through experiments.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Fu-Rong Xiu, Longsheng Zhan, Yingying Qi, Xinyue Lei, Jiali Wang, Haipeng Zhou, Wenting Shao
Summary: This study developed a synergetic and high-efficiency treatment of waste tantalum capacitors (WTCs) and polyvinyl chloride (PVC) using subcritical water process. The treatment significantly reduced the temperature and reaction time for metal tantalum recovery from WTCs, and improved the dechlorination efficiency of PVC. The optimized conditions resulted in 100% resin conversion efficiency of WTCs and 97.39% dechlorination efficiency of PVC. The interaction between decomposition products of WTCs and PVC produced a high level of benzoic acid.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Bingda Li, Jiaming Song, Yuting Li, Chaoying Meng, Shuxian Wang, Linghao Zong, Honggang Ye, Yishuai Jing, Feng Teng, Peng Hu, Haibo Fan, Guangde Chen, Xin Zhao
Summary: CdPS3 nanosheets, especially those exfoliated by sodium cholate, have shown highly efficient photocatalytic degradation performance. The strong dark adsorption and dye-sensitized photocatalytic properties of CdPS3 nanosheets contribute to high degradation efficiencies of various pollutants.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
Article
Engineering, Environmental
Dongxu Ouyang, Yimei Pang, Bo Liu, Zhirong Wang
Summary: This study investigates the thermal runaway features of lithium-ion cells under tunnel conditions, considering different states of charge and tunnel ceilings. The results show that the tunnel visibility is affected by the smoke generated during thermal runaway, and the shape of the tunnel ceiling influences the temperature rise differently.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2024)
