Journal of Loss Prevention in The Process Industries最新文献

{"title":"Optimal distribution of emergency resources to accidents for pre-rescue in chemical industrial parks","authors":"Yunwei Jia ,&nbsp;Kaiying Yu ,&nbsp;Zhenzhong Liu ,&nbsp;Tianyang Wang ,&nbsp;Keke Lu ,&nbsp;Chao Wang","doi":"10.1016/j.jlp.2024.105398","DOIUrl":"10.1016/j.jlp.2024.105398","url":null,"abstract":"<div><p>Medical and fire resources are scheduled to chemical industrial parks which have caused mass casualties due to accidents. However, most of models of emergency logistics do not account for pre-rescue before large-scale rescue which may increase the casualty rate because of the long emergency response time and distance. This paper presents a mathematical model proposed for optimal distribution of emergency resources for rescuing the trapped victims who are highly likely to be seriously injured or even killed before the arrival of ambulances and fire engines. Due to the different types and risks of accidents at various locations have different impacts on people, we consider the detailed characteristics of accident scenarios and maximum tolerance time for the trapped victims to determine the priority of rescue sites. In addition, this paper proposes two indices of pavement resistance coefficient and obstacle to reflect the environment after accidents, which are not involved in other models of emergency resources distribution. Based on these, a penalty cost objective function is established to maximize the rescue rate. The optimal delivery route which reflects the distribution process is planned for the robot that will save more casualties. Two simulations and a real accident case study were conducted by minimizing the objective function, and the numerical results showed the reliability and effectiveness of the presented model for making optimal decisions for emergency distribution to accidents in chemical industrial parks.</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"91 ","pages":"Article 105398"},"PeriodicalIF":3.6,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141959949","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":"Unsupervised gas pipeline network leakage detection method based on improved graph deviation network","authors":"Liangcheng Yu,&nbsp;Mingyuan Zhang","doi":"10.1016/j.jlp.2024.105396","DOIUrl":"10.1016/j.jlp.2024.105396","url":null,"abstract":"<div><p>Historical data has shown that the natural gas pipeline network, as a critical urban lifeline system, is susceptible to disasters such as earthquakes resulting in leakage. Graph neural network modeling provides frontier rapid detection solutions for pipeline leakage; however, the challenges of collecting gas network anomaly data for training limit the precision and robustness of current model. This research proposes an unsupervised gas leakage detection and localization method based on a contained preprocessing process, with a graph deviation model that combines a structural learning approach with a graph neural network to model the spatial dependence of the sensors based on an attention mechanism, and variational inference models the posterior distributions of the hyper-parameters to optimize the model and improve the model precision. Meanwhile, in the preprocessing stage, the automatic optimization strategy of Northern Goshawk Optimization (NGO) for the best parameters <em>K</em> and <em>ɑ</em> in the Variable Mode Decomposition (VMD) efficiently extracts the valid signals and ensures that the model gives full play to the detection and localization effectiveness. The gas pipeline network dataset constructed by Pipeline Studio was used for comparing the performance of the model in this study with other frontier models. The results demonstrate that the model in this research has competitive detection Precision (93.31%), Recall (70.82%), and F1-score (0.81), and the posterior distribution of the model parameters strengthens the gas leakage localization precision, which provides a comprehensive solution for subsequent decision-making and reduces the hidden hazard of leakage effectively.</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"91 ","pages":"Article 105396"},"PeriodicalIF":3.6,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141637179","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":"Numerical analysis on the formation of pyrophoric iron sulfides and their oxidation to spontaneous combustion in gas pipelines","authors":"Han Xiao ,&nbsp;Shi-Jie Guo ,&nbsp;Zhi-Cong An ,&nbsp;Qian-Lin Wang ,&nbsp;Jing-Hai Li ,&nbsp;Liang-Chao Chen ,&nbsp;Xu Diao ,&nbsp;Zhan Dou ,&nbsp;Jian-Wen Zhang","doi":"10.1016/j.jlp.2024.105395","DOIUrl":"10.1016/j.jlp.2024.105395","url":null,"abstract":"<div><p>When the sour gas is transported through the pipeline, the active sulfur in it will corrode the inner wall of the pipeline, forming pyrophoric iron sulfides which will be attached to the pipe wall or move downstream with the transportation medium, and eventually spread throughout the whole pipeline transportation system. When the pipeline is corroded and perforated or in the state of pipeline shutdown and disassembly, if there is negative pressure inside the pipeline, the pyrophoric iron sulfides will contact the incoming air and be oxidized to spontaneous combustion. At this time, if there are substances with combustion or explosion tendency in the pipeline gathered around the pyrophoric iron sulfides that occur spontaneous combustion, major safety accidents such as fire or even explosion are easy to happen, which seriously threaten the safe operation of long-distance gas transmission system. Generally speaking, the greater the accumulation of corrodes inside the pipe, the higher the probability of spontaneous combustion will be due to their contact with oxygen. However, when pyrophoric iron sulfides occur oxidation to spontaneous combustion, it is difficult to be directly perceived from outside the pipe and can only be determined by indirect measurement based on the temperature change of the pipe wall. Therefore, in order to predict the accumulation of pyrophoric iron sulfides inside the pipeline and find out the temperature change of the pipe wall during the spontaneous combustion of pyrophoric iron sulfides inside the pipeline, based on theoretical analysis and computer numerical simulation method, this paper firstly used COMSOL Multiphysics software to build the corrosion model of pyrophoric iron sulfides inside the pipeline and the heat transfer model of pyrophoric iron sulfides inside the pipeline during spontaneous combustion and verify the feasibility of the model; Then, based on the actual operation condition of the long gas transmission pipeline, the formation process of the pyrophoric iron sulfides on the inner wall of the pipeline was simulated, and the heat transfer process of the pipe wall was simulated during oxidative spontaneous combustion of pyrophoric iron sulfides under different factors; after that, according to the simulation results, the corrosion law of the inner wall of the pipe and the heat transfer law of the pipe wall when the pyrophoric iron sulfides occur in oxidation spontaneous combustion were analyzed. The influence of different influencing factors on the heat transfer process of the pipe and their synergistic coupling effect was discussed. Thus, it provides a theoretical basis for early intervention in the oxidation and spontaneous combustion of iron sulfide corrosion products through abnormal temperature monitoring during the shutdown period of the pipeline.</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"91 ","pages":"Article 105395"},"PeriodicalIF":3.6,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141701284","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 time-dependent CFD approach to consequence assessment of sour natural gas leakage from buried high-pressure transmission pipelines","authors":"Mojtaba Bagheri,&nbsp;Ataallah Sari","doi":"10.1016/j.jlp.2024.105389","DOIUrl":"https://doi.org/10.1016/j.jlp.2024.105389","url":null,"abstract":"<div><p>High-pressure pipelines that transport sour natural gas contain high levels of hydrogen sulfide, which is poisonous and has irreparable effects on human health even in low concentrations. These pipes are break valve-assisted and buried underground to minimize gas leakage and protect people nearby. This study examines their leakage through a series of time-dependent three-dimensional CFD simulations. In contradiction of previous works that only considered the above-ground environment, here, for more realism, the computational domain includes the pipeline, trench, covering soil, and above-ground environment. The impact of hole size, leak location on the pipe, wind velocity, atmospheric stability class, time of occurrence (day or night), and the presence of break valves on the dispersion of leaked gas are comprehensively investigated. Results indicate that the effect of hole diameter on hydrogen sulfide concentration in the above-ground environment is dominant to other factors. In addition, the probability of fatality due to gas release and the intensity of the gas leak exposure crisis are studied by combining the dose-response model and CFD simulation results. In this line, <em>LT</em>₅₀, which measures how long it takes for 50% of people in different areas around the pipeline to die from exposure to hydrogen sulfide is calculated.</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"91 ","pages":"Article 105389"},"PeriodicalIF":3.6,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141543660","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":"Experiments on vented H2/air explosions with a hinged vent panel: Effects of surface density","authors":"Shikai Huang ,&nbsp;Fang Wang ,&nbsp;Caijun Xu ,&nbsp;Jin Guo ,&nbsp;Fan Zhang ,&nbsp;Zelong Wu ,&nbsp;Binhua Wu","doi":"10.1016/j.jlp.2024.105393","DOIUrl":"10.1016/j.jlp.2024.105393","url":null,"abstract":"&lt;div&gt;&lt;p&gt;The effect of inertial vent covers on deflagrations of fast-burning gases, such as hydrogen, has received limited attention, and recommendations for their safe venting are unavailable. To this end, experiments on vented explosion of H&lt;sub&gt;2&lt;/sub&gt;/air mixtures, ignited from the center of a 1-m&lt;sup&gt;3&lt;/sup&gt; chamber with a top vent covered by hinged aluminum plates of various surface densities (&lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;W&lt;/mi&gt;&lt;mi&gt;s&lt;/mi&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt;), were performed at initial temperatures and pressures of 290 K and 100 kPa to investigate the effects of &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;W&lt;/mi&gt;&lt;mi&gt;s&lt;/mi&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; on the flame evolution and pressure profile within and outside the vented vessel. Three pressure sensors (PS1-PS3) were used to record internal overpressure and another pressure sensor (PS4) was employed to monitor external overpressure. Current tests showed some unexpected results, which were inconsistent with previous research and available models. In this study, &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;P&lt;/mi&gt;&lt;mi&gt;max&lt;/mi&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt;, &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;P&lt;/mi&gt;&lt;mrow&gt;&lt;mi&gt;r&lt;/mi&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;d&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt;, and &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;P&lt;/mi&gt;&lt;mrow&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;x&lt;/mi&gt;&lt;mi&gt;t&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; are focused on; &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;P&lt;/mi&gt;&lt;mi&gt;max&lt;/mi&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; refers to the maximum internal overpressure recorded by PS1-PS3, &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;P&lt;/mi&gt;&lt;mrow&gt;&lt;mi&gt;r&lt;/mi&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;d&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; represents the highest &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;P&lt;/mi&gt;&lt;mi&gt;max&lt;/mi&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; monitored by PS1-PS3 for a certain &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;W&lt;/mi&gt;&lt;mi&gt;s&lt;/mi&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt;, and &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;P&lt;/mi&gt;&lt;mrow&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;x&lt;/mi&gt;&lt;mi&gt;t&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; denotes the maximum external overpressure obtained by PS4. Experimental results reveal that for a given &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;W&lt;/mi&gt;&lt;mi&gt;s&lt;/mi&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; , the highest and lowest &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;P&lt;/mi&gt;&lt;mi&gt;max&lt;/mi&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; are always observed at the bottom and the center of the chamber, respectively. With the increase of &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;W&lt;/mi&gt;&lt;mi&gt;s&lt;/mi&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; from 0 to 18.9, &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;P&lt;/mi&gt;&lt;mrow&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;x&lt;/mi&gt;&lt;mi&gt;t&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; first increases and then decreases, and it reaches its highest value when &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;W&lt;/mi&gt;&lt;mi&gt;s&lt;/mi&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; is increased to 8.1 kg/m&lt;sup&gt;2&lt;/sup&gt;. As &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;W&lt;/mi&gt;&lt;mi&gt;s&lt;/mi&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; increases from 0 to 18.9, &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;P&lt;/mi&gt;&lt;mrow&gt;&lt;mi&gt;r&lt;/mi&gt;&lt;mi&gt;e&lt;/mi&gt;&lt;mi&gt;d&lt;/mi&gt;&lt;/mrow&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; first increases with &lt;span&gt;&lt;math&gt;&lt;mrow&gt;&lt;msub&gt;&lt;mi&gt;W&lt;/mi&gt;&lt;mi&gt;s&lt;/mi&gt;&lt;/msub&gt;&lt;/mrow&gt;&lt;/math&gt;&lt;/span&gt; and reaches its maximum of 93 kPa at &lt;span&gt;&lt;mat","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"91 ","pages":"Article 105393"},"PeriodicalIF":3.6,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141573829","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 new approach proposal for ensuring security engineering through barrier and operational quantitative risk analysis (BOQRA)","authors":"Mohamed Seddik Hellas ,&nbsp;Rachid Chaib ,&nbsp;Djamel Nettour ,&nbsp;Hamza Zerrouki","doi":"10.1016/j.jlp.2024.105390","DOIUrl":"10.1016/j.jlp.2024.105390","url":null,"abstract":"<div><p>The advancement in petrochemical industry has led to a significant increase in accidents, a concern that cannot overlooked if we aim to ensure the safety of our systems while still meeting production objectives. To address these phenomena, several techniques and models have been developed; the most important of them is Quantitative Risk Analysis (QRA). A QRA is a systematic approach that aims to estimate the likelihood and consequences of hazardous events. Despite its effectiveness, it faces limitations associated with uncertainty, relying on average values within the database. To overcome this limitation, Barrier and Operational Risk Analysis (BORA) is integrated with QRA, incorporating frequency analysis of consequences into the QRA methodology. This developed approach, termed Barrier and Operational Quantitative Risk Analysis (BOQRA), enables the correction of entered data in the database for calculating individual and revised societal risks while counting for human, technical, and organizational aspects. Additionally, it identifies essential measures to control risks and manage the impacts of modifications and configuration changes. The BOQRA sheds the light of the influence of Risk Influencing Factors (RIF) on barriers and their performance within an operational system. As an illustrative case study, we examined the flask ball for separating oil and gas based on density.</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"91 ","pages":"Article 105390"},"PeriodicalIF":3.6,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141630453","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":"Characteristics of the insulation resistance of the cable according to high temperature environment and temperature increase in the melting furnace process","authors":"Bong Suk Ko ,&nbsp;Doo Hyun Kim ,&nbsp;Sung Chul Kim ,&nbsp;Jae-Ho Kim","doi":"10.1016/j.jlp.2024.105394","DOIUrl":"10.1016/j.jlp.2024.105394","url":null,"abstract":"<div><p>In this study, the process environment temperature and insulation resistance were measured through the investigation on actual condition on cables of 2.5㎟ for Oil Pump #A, 6㎟ for Oil Pump #B, and 10㎟ for Heater CV, which are exposed to high temperature environments among the eight melting furnace processes. Based on this, the experiment was conducted in a facility that simulated the high temperature conditions in the process, and the effect of high temperature on insulation resistance was analyzed using the Arrhenius equation. Oil Pump #A showed a maximum temperature of 105 °C when the melting furnace was in operation, and 70 °C when it was stopped. Additionally, the insulation resistance maintained 100㏁ for up to 7 years, but then showed a rapid decrease of 50% to 50㏁ after one year. The experiments based on the actual condition and the application of the Arrhenius equation indicated that the insulation resistance decreased sharply at 80 °C, with the Arrhenius equation showing similar results. Therefore, applying the Arrhenius equation presented in this study can predict the insulation resistance of cables in high-temperature environments, thus preventing cable fires in places where it is difficult to measure and manage insulation resistance due to a high temperature environment.</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"91 ","pages":"Article 105394"},"PeriodicalIF":3.6,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141637180","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":"Experimental study of methane explosion suppression by dopamine-coated powder","authors":"Ke Yang ,&nbsp;Dongyu Ji ,&nbsp;Hong Ji ,&nbsp;Zhixiang Xing ,&nbsp;Juncheng Jiang ,&nbsp;Kai Zheng ,&nbsp;Guangyu Liu ,&nbsp;Yixuan Yin","doi":"10.1016/j.jlp.2024.105392","DOIUrl":"10.1016/j.jlp.2024.105392","url":null,"abstract":"<div><p>Natural gas is an important clean energy source, occupying an increasingly important position in the composition of energy consumption. However, its safety issues cannot be underestimated and are highly worth studying. This article conducted methane explosion experiments on the self-developed acrylic pipeline experimental platform, using Al(OH)₃ and NaHCO₃ powder, and dopamine powder. After a series of centrifugation, purification, catalysis, stillness, and high-temperature drying steps, the modified polydopamine-coated powder was obtained. To reduce the impact of methane explosion, the self-polymerization of dopamine to synthesize polydopamine was studied. Finding the optimal coating concentration through multiple sets of experiments. Conduct experiments on dopamine-coated aluminum hydroxide and powder to suppress explosions under different concentrations of methane conditions, and study the effect of polydopamine-coated aluminum hydroxide and sodium bicarbonate powder on methane explosions at different concentrations.</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"91 ","pages":"Article 105392"},"PeriodicalIF":3.6,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141705210","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":"Effects of standardization in risk management regulations for land-use planning related to process industries and transportation of dangerous goods","authors":"Johan Ingvarson","doi":"10.1016/j.jlp.2024.105383","DOIUrl":"https://doi.org/10.1016/j.jlp.2024.105383","url":null,"abstract":"<div><p>Preventing and mitigating damage to the surroundings arising from process safety incidents is an important aspect of process safety. Risk-informed or risk-based decision-making are cornerstones in most countries’ regulatory regimes for land-use planning. However, the design and implementation of the regulations vary significantly - from countries that have chosen a highly standardized set of rules prescribing detailed technical solutions to less standardized regulations with functional requirements that focus on what is to be achieved rather than how it is achieved. There are strengths and weaknesses associated with risk management regulations being more or less standardized, but empirical evidence favouring high or low levels of standardization is largely lacking. Through interviews with 30 risk management practitioners from three countries (Sweden, Norway, and the Netherlands), this paper provides empirical data on the effects of different risk management regulatory regimes. Using CIMO-logic (Context – Intervention – Mechanism – Outcome) to facilitate and structure data analysis, this paper also explores the underlying mechanisms contributing to achieving the effects. The study shows that the perceived effects of standardization of risk management regulations are similar irrespective of respondents’ attributes, such as work country, current and previous roles, education level, years of experience, or gender. Similarly, there are no clear trends in the data or in scientific literature that specific effects are exclusively the results of high or low levels of standardization. The effects of standardization are highly contextual, and the balance of benefits and shortcomings of specific regulatory regimes should be explored in each situation. Hence, it cannot be concluded that high or low levels of standardization of risk management regulations should be preferred</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"91 ","pages":"Article 105383"},"PeriodicalIF":3.6,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0950423024001414/pdfft?md5=b011e05201b082c2a8eec5ce5d023f05&pid=1-s2.0-S0950423024001414-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141543659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing process safety management through evidence-based process safety management (EBPSM): A theoretical framework and case analysis","authors":"Bing Wang ,&nbsp;Jiasheng Zhou ,&nbsp;Yuanjie Wang","doi":"10.1016/j.jlp.2024.105381","DOIUrl":"https://doi.org/10.1016/j.jlp.2024.105381","url":null,"abstract":"<div><p>Amidst the escalating complexity of process operations, ensuring effective process safety management (PSM) is crucial to prevent major accidents. However, current PSM practices often lack the integration of evidence resources, leading to a research-to-practice gap and hindering PSM's development. To address these challenges, this study proposes evidence-based process safety management (EBPSM), which systematically integrates various evidence types such as incident reports, hazard assessment, safety audits, and scientific literature, to optimize PSM and enhance professional expertise. Firstly, the study reviews PSM development, emphasizing its shortcomings concerning safety information. Subsequently, the EBPSM approach is introduced, highlighting its necessity and key determinants. A comprehensive framework for EBPSM is presented, detailing each stage of its operational processes. To demonstrate the extended application of EBPSM, the framework is employed in liquefied natural gas (LNG) maritime safety management. Finally, the study concludes by discussing limitations and suggesting future directions for EBPSM. By emphasizing the systematic integration of evidence resources and the necessity of applying EBPSM systematically, this study aims to equip process safety practitioners with a well-informed understanding of the evidence-based approach and its potential to enhance process safety outcomes in future PSM implementations. Moreover, embracing the EBPSM approach may enable industries to proactively mitigate risks and foster a safer and more resilient working environment.</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"91 ","pages":"Article 105381"},"PeriodicalIF":3.6,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141541356","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}