Junjie Zhu , Hui Liu , Chaozhen Tong , Jie Kong , Xiaoyue Yao , Xinqun Wang , Hailin Zhou
{"title":"Mapping the knowledge domain of gas explosion studies in process industry for safety development","authors":"Junjie Zhu , Hui Liu , Chaozhen Tong , Jie Kong , Xiaoyue Yao , Xinqun Wang , Hailin Zhou","doi":"10.1016/j.jlp.2025.105727","DOIUrl":"10.1016/j.jlp.2025.105727","url":null,"abstract":"<div><div>Gas explosions are one of the common forms of accidents in the process industries, posing significant risks to the safe and sustainable development of industrial enterprises. To understand the current research trends and the current state of prevention and control technologies, a bibliometric analysis was conducted in this paper. The results show that “<em>Journal of Loss Prevention in the Process Industries</em>”, “<em>Process Safety and Environmental Protection</em>” and “<em>Fuel</em>” are the main source journals in gas explosion research. Gas explosions research is multidisciplinary, with knowledge bases including accident analysis and method research, general understanding of gas explosions, and explosion control technology. Five main research hotspots were identified: methane explosion research, explosion characteristics research, explosion venting research, explosion suppression materials research and accident risk assessment analysis. Regional analysis reveals Asia focuses on coal mine explosions, Europe on structural impact, while North America emphasizes process safety and simulation. Intelligent sensing and rapid suppression of gas explosions are among the challenges facing current research.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"98 ","pages":"Article 105727"},"PeriodicalIF":3.6,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144491148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hasan Hidayattuloh, Andy Noorsaman Sommeng, Ardian Nengkoda
{"title":"Enhanced analysis of Safety Critical Elements (SCEs) to mitigate Major Accident Hazards (MAH) in Early Production Facilities (EPF): A case study in Indonesia","authors":"Hasan Hidayattuloh, Andy Noorsaman Sommeng, Ardian Nengkoda","doi":"10.1016/j.jlp.2025.105728","DOIUrl":"10.1016/j.jlp.2025.105728","url":null,"abstract":"<div><div>Early Production Facilities (EPF) is a temporary processing facility that allow oil production at low initial cost and reduced financial risk. EPF still faces significant challenges related to process safety despite its financial advantages. Although existing studies have addressed various aspects of EPF, including risk assessment, design, and economic feasibility, a significant gap remains in the identification and analysis of Major Accident Hazard (MAH) and Safety Critical Elements (SCEs) specific to EPF operations. This study addresses the research problem of identifying potential MAH and the corresponding SCEs to reduce the risk of major accidents in EPF. The study focused on EPF located in three (3) areas: AMJ, BMH, and HGD which are located in West Java, Indonesia. HAZOP and Bowtie methods were employed to systematically identify potential MAH and relevant SCEs in the selected EPF. 32 MAH scenarios on EPF identified in this study. 72 % of accidents have an impact on fire/explosion, which poses a risk to personal safety and facility integrity. Most MAH scenarios on EPF are triggered by two primary causes: overpressure and corrosion. A major proportion of MAH scenarios are identified in equipment such as Separator, Flowline & Manifold, and Scrubber. 188 SCEs were identified in this study. By prioritizing the identified SCEs, maintenance resources can be focused on critical elements that directly prevent or mitigate MAH, thereby improving cost-effectiveness without compromising safety. 74 % were classified as technical/hardware barriers. This highlights the necessity of a robust maintenance strategy to guarantee the reliability and effectiveness of these technical elements over time. Future efforts could also focus on refining the current Bowtie analysis by incorporating quantitative risk modeling methods and on developing performance standards for SCEs, which can be used to enhance the robust maintenance strategy.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"98 ","pages":"Article 105728"},"PeriodicalIF":3.6,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hongqiang Li , Xiangkun Meng , Wenjun Zhang , Guoming Chen , Xue Yang
{"title":"Towards the development of a systems-theoretic model for safety assessment of arctic offshore drilling activities","authors":"Hongqiang Li , Xiangkun Meng , Wenjun Zhang , Guoming Chen , Xue Yang","doi":"10.1016/j.jlp.2025.105731","DOIUrl":"10.1016/j.jlp.2025.105731","url":null,"abstract":"<div><div>The exploration and development (E&D) of Arctic offshore oil and gas reserves represent a domain with significant potential, yet fraught with formidable challenges and operational risks. The harsh Arctic environment and the complexity of drilling equipment impose many challenges on E&D operations. Addressing these challenges necessitates innovative methodologies capable of detailed analysis of complex drilling tasks and a holistic understanding of risk propagation. This study proposes an integrated framework combining the Systems-Theoretic Accident Model and Processes (STAMP) and Functional Resonance Analysis Method (FRAM) to enhance the safety analysis in Arctic offshore drilling operations. STAMP systematically identifies unsafe control actions (UCAs) within hierarchical control architectures, whereas FRAM captures functional variability and emergent resonance effects. A case study of drilling activities in the Barents Sea illustrates the applicability and highlights critical operational hazards. The integrated framework facilitates macro-level assessment of functional interactions and micro-level control structure analysis, offering actionable safety constraints. The findings underscore the effectiveness of the framework in addressing Arctic-specific operational risks. This research provides a robust analytical tool for safety management in high-risk environments, thereby providing decision-making support for ensuring the safety of arctic offshore drilling activities.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"98 ","pages":"Article 105731"},"PeriodicalIF":3.6,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144501386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hongze Su , Chang Guo , Nan Liu , Xiaoyu Liang , Xiangliang Zhang
{"title":"Visualization and analysis of mapping knowledge domain in metal dust explosion research","authors":"Hongze Su , Chang Guo , Nan Liu , Xiaoyu Liang , Xiangliang Zhang","doi":"10.1016/j.jlp.2025.105729","DOIUrl":"10.1016/j.jlp.2025.105729","url":null,"abstract":"<div><div>Metal dust explosions represent critical issues in industrial safety, necessitating comprehensive research to mitigate risks and enhance prevention strategies. To address this, a bibliometric analysis of 1132 publications (2008–2024) from the Web of Science Core Collection was conducted, mapping the temporal and spatial distribution of publications, country/region contributions, subject categories, institutional collaborations, major source journals, highly cited papers, co-authorship networks, research knowledge domains, and emerging research frontiers. Key findings reveal that China leads in publication volume (50.05 %), while the United States exhibits the highest academic influence. The primary research fields include engineering chemical (47.20 %), materials science multidisciplinary (29.44 %), and energy fuels (22.78 %). The research knowledge domain is centered on the properties of metal dust, explosion mechanisms, and suppression techniques, with a particular focus on aluminum dust and nanomaterials. Current research hotspots include combustion behavior, ignition mechanisms, and the effects of microstructure. Emerging frontiers are dominated by \"severity\" and \"inhibition\", reflecting a growing emphasis on quantifying explosion intensity and developing effective suppression strategies. These findings provide a theoretical foundation for industrial dust explosion prevention and underscore promising directions in nano-materials, alloy optimization, and interdisciplinary approaches for enhancing safety engineering.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"98 ","pages":"Article 105729"},"PeriodicalIF":3.6,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144469993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bruno Góbi Santolin, Ramon Silva Martins, Márcio Ferreira Martins
{"title":"Advanced RANS model for simulating high-pressure gas leaks and dispersion dynamics","authors":"Bruno Góbi Santolin, Ramon Silva Martins, Márcio Ferreira Martins","doi":"10.1016/j.jlp.2025.105707","DOIUrl":"10.1016/j.jlp.2025.105707","url":null,"abstract":"<div><div>This article reports three CFD models, RANS-based analysis, were improved to represent the primary phenomena associated with pressurized gas leakage in pipelines. These models were benchmarked against experimental data from the literature, focusing on depressurization, expansion, and dispersion. The enhancements to the RANS method included using a patch tool to separate the pipeline boundary from the atmosphere, allowing specific initial conditions to be assigned to mesh elements; automatically mesh adaptation to capture regions with significant velocity and pressure gradients accurately; implementing a source term in the transport equation to account for buoyancy effects related to density changes lied to the high-temperature gradient typical present in the referred phenomena — that was crucial for the Peng–Robinson real gas equation effectiveness. Qualitative and quantitative analyses reveal that enhanced models closely matched experimental results, demonstrating significant improvements over classical approaches, with maximum average percentage differences of 12.87 %, 90.52 %, and 53.10 % for depressurization, expansion, and dispersion, respectively. The delineated method provides a valuable approach for rapidly creating a database to predict potential outcomes of pressurized pipeline leaks.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"98 ","pages":"Article 105707"},"PeriodicalIF":3.6,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shaobo Feng , Zhixiong Xu , Rui Zhou , Bo Zhou , Kun Huang , Qi Jing , Hongtao Jing
{"title":"Study on the sensitivity and hazard of combustion and explosion in 175 MPa ultra-high pressure blowout gas mixtures","authors":"Shaobo Feng , Zhixiong Xu , Rui Zhou , Bo Zhou , Kun Huang , Qi Jing , Hongtao Jing","doi":"10.1016/j.jlp.2025.105715","DOIUrl":"10.1016/j.jlp.2025.105715","url":null,"abstract":"<div><div>At present, the underground pressure of ultra-deep wells can reach up to 175 MPa, making blowouts under such conditions significantly more hazardous. However, the safety distance for the control system of the Christmas tree has not yet been effectively determined, primarily due to the lack of accurate assessment of the gas ignition conditions. To scientifically evaluate the blowout-induced combustion and explosion risks of ultra-high-pressure gas mixtures in ultra-deep wells, this study conducted ignition experiments and developed a theoretical prediction model to comprehensively analyze the ignition sensitivity parameters and explosion hazards of gas mixtures at 175 MPa. The results show that increasing the ignition energy from 20 mJ to 1000 mJ lowers the lower explosion limit (LEL) by 13.77 %, while raising the hot surface ignition temperature from 820 °C to 1600 °C reduces the LEL by 11.92 %. Under blowout conditions, the explosion overpressure decreases from 1.90 bar to 0.94 bar—cut nearly in half—and the flame temperature drops from 754.21 °C to 621.34 °C, indicating a substantial reduction in explosion severity. With increasing initial pressure, fewer cracks appear on the surface of spherical flames of the same radius, suggesting enhanced flame stability. Based on thermodynamic and heat transfer theory, a theoretical prediction model for the minimum ignition energy (MIE) of blowout gas mixtures was proposed, incorporating analysis of energy loss mechanisms. The model's prediction error remains within 30 %. This study provides a scientific foundation for the prevention and control of combustion and explosion risks associated with blowouts in ultra-high-pressure, deep oil and gas reservoirs.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"98 ","pages":"Article 105715"},"PeriodicalIF":3.6,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"PS-RTA method for safety responsibility management: An approach to promote competency of employees to fulfill safety responsibility","authors":"Xu Zhao, Yunhao Zhao, Jing Li, Zhihao Wang, Ruipeng Tong","doi":"10.1016/j.jlp.2025.105713","DOIUrl":"10.1016/j.jlp.2025.105713","url":null,"abstract":"<div><div>The effective implementation of workplace safety responsibilities constitutes the foundation for accident prevention and sustainable enterprise operations. This study proposes a closed-loop management methodology named the PS-RTA method (Position-Specific Responsibility-Training-Assessment), developed from the perspective of enhancing safety responsibility competency through a logical chain of \"responsibility assignment - competency development - performance evaluation.\" At the responsibility assignment level, the methodology introduces a position-specific safety responsibility checklist development approach that accounts for the interdependencies among safety responsibility and collaborative dependencies among responsible groups. For competency development, it integrates competency requirement analysis with training models to establish position-specific safety responsibility competency enhancement program. Regarding performance evaluation, the methodology combines position-specific assessment indicators with dynamic weighting mechanisms to formulate scientifically grounded safety responsibility competency evaluation method. Furthermore, the study presents a three-year implementation case involving China's largest oil and gas pipeline network operator, demonstrating how the PS-RTA methodology successfully established a \"One position, one list. One position, one training. One position, one assessment\" safety management model. The PS-RTA method effectively resolves longstanding challenges in ambiguous responsibility delineation and insufficient control mechanisms, providing enterprises with a systematic reference for strengthening safety governance through structured responsibility clarification, competency cultivation, and performance monitoring.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"98 ","pages":"Article 105713"},"PeriodicalIF":3.6,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144481015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A physics-informed data-driven model applied for gas dispersion","authors":"Guilherme Milhoratti Lopes, Flávio Vasconcelos da Silva, Sávio Souza Venâncio Vianna","doi":"10.1016/j.jlp.2025.105703","DOIUrl":"10.1016/j.jlp.2025.105703","url":null,"abstract":"<div><div>Gas dispersion calculations are essential for numerous applications. While the gas flow behaviour can be theoretically described by the Navier–Stokes equations, obtaining numerical solutions poses significant computational challenges, due to the demanding computational time involved. In this study, we tackle these challenges by leveraging the power of physics-informed neural networks (PINNs). PINNs integrate the underlying physics of the problem directly into the architecture of the neural network. By incorporating the Navier–Stokes equations within the framework of neural networks, our approach accounts for the fundamental physics governing gas dispersion. We use an in-house Computational Fluid Dynamics (CFD) code and commercial software to generate the required dataset. Our results demonstrate that the model is robust and capable of providing rapid solutions to gas dispersion problems. This efficiency is particularly noteworthy when compared to the considerable computational time required for traditional CFD calculations. Therefore, our approach offers a promising alternative for efficient and accurate gas dispersion simulations in process safety applications.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"97 ","pages":"Article 105703"},"PeriodicalIF":3.6,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144322203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Unggi Yoon , Joonsik Kim , Byoungjik Park , Inju Hwang , Wookyung Kim , Yangkyun Kim
{"title":"Experimental study on the risk of explosion from hydrogen-air mixtures in confined and semi-confined concrete structures","authors":"Unggi Yoon , Joonsik Kim , Byoungjik Park , Inju Hwang , Wookyung Kim , Yangkyun Kim","doi":"10.1016/j.jlp.2025.105712","DOIUrl":"10.1016/j.jlp.2025.105712","url":null,"abstract":"<div><div>When constructing hydrogen infrastructure in confined or semi-confined spaces, the significance of ventilation systems increases, necessitating measures to mitigate explosion damage. This study experimentally investigated the risk of hydrogen explosions in such spaces and analyzed the effectiveness of explosion venting in reducing internal explosion pressure. The experiments were conducted in concrete structures filled with a hydrogen-air mixture. The results showed that explosion venting substantially reduced internal explosion pressure; the maximum pressure difference between confined and semi-confined conditions was approximately 14.3 times, with significant pressure reduction observed under confined conditions due to the presence of a minimal vent area. In confined spaces, the probability of fatalities from concrete fragments generated by the blast wave, which could scatter up to approximately 80 m from the structure, ranged from 0.065 % to over 99 %, indicating a lethal threat to humans. Conversely, in semi-confined spaces equipped with explosion venting, the maximum external peak overpressure measured was 3.44 kPa, posing no significant harm to humans. These findings confirm that incorporating a minimal explosion vent area in confined or semi-confined spaces can significantly reduce both property and human damage by lowering internal explosion pressures.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"97 ","pages":"Article 105712"},"PeriodicalIF":3.6,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144322202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lingfeng Wang , Zhengdong Liu , Jinglin Zhang , Zhenguo Du , Shikai Bao , Zhiyang Zhang , Chang Li , Chunmiao Yuan
{"title":"Experimental study on the influence of three typical surfactants on the explosion characteristics of coal dust clouds","authors":"Lingfeng Wang , Zhengdong Liu , Jinglin Zhang , Zhenguo Du , Shikai Bao , Zhiyang Zhang , Chang Li , Chunmiao Yuan","doi":"10.1016/j.jlp.2025.105716","DOIUrl":"10.1016/j.jlp.2025.105716","url":null,"abstract":"<div><div>The extensive application of surfactants in wet dust removal technology may alter the combustion and explosion risk characteristics of coal dust. This is of great engineering significance for the safety prevention and control in the process industry. To assess the impact mechanism of surfactant treatment on the safety parameters of dust explosion, this study selected three typical surfactants (SDS, Triton™ X 100, and CTAB) and systematically investigated the evolution rules of the explosion hazards of coal dusts with different degrees of coalification (lignite, bituminous coal, anthracite).Using a 20-L explosion chamber, the explosion parameters (P<sub>max</sub>, (dP/dt)<sub>max</sub>) were measured. The thermodynamic behavior and functional group evolution were analyzed by integrating TG/DTG-DSC and FTIR techniques. The study revealed that the regulation of explosion intensity by surfactants is coal rank dependent. Specifically, SDS treatment significantly enhanced the explosion pressure of lignite (with a 13.0 % increase in P<sub>max</sub>) while inhibiting the explosion reaction of anthracite. Triton™ X-100 generally reduced the explosion risk but exhibited coal-ank sensitivity (the inhibition efficiency of lignite was merely 18.7 % of that of anthracite).Mechanistic studies indicate that surfactants alter the reaction pathway by regulating the key active sites (hydroxyl/oxygen-containing functional groups) of coal-oxygen recombination. Hydroxyl groups play a dominant role in the explosion-enhancing effect of low-rank coal, while the explosion inhibition of high-rank coal is associated with the recombination of oxygen-containing groups. This research uncovers the dual-safety effects of surfactants in the dust-removal process and offers a theoretical foundation for the risk-graded prevention and control of wet dust-suppression systems in the process industry.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"98 ","pages":"Article 105716"},"PeriodicalIF":3.6,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144330222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}