Journal of Loss Prevention in The Process Industries最新文献

英文中文

A Bayesian approach integrating real-time monitoring data for the estimation of a dynamic RUL of equipment affected by sulfidation and naphthenic acids corrosion

IF 3.6 3区工程技术 Q2 ENGINEERING, CHEMICAL

Journal of Loss Prevention in The Process Industries

Pub Date : 2025-02-06 DOI: 10.1016/j.jlp.2025.105582

Giuseppa Ancione , Paolo Bragatto , Maria Francesca Milazzo

Sulfidation and naphthenic acids corrosion is a common mechanism in processing crude oils with high sulphur content. This research addresses the need for reliable corrosion management strategies in chemical industry in an energy transition context and simultaneously affected by emerging scenarios (economic, geopolitical, etc.). The objective is to develop a dynamic model for estimating the remaining lifetime of equipment, using predictive modelling techniques and monitoring data of process variables that influence the deterioration mechanism. The developed model supports the prevention of negative consequences due to the equipment deterioration and the optimisation of inspection and maintenance programs. By offering an innovative tool for the corrosion management, this research aims to contribute to ongoing efforts improving the efficiency and sustainability of energy production processes. Due to some emerging scenarios, refineries could be oriented to increase the processing of raw materials with high content of sulphur; these are more accessible and economical, but accelerate the deterioration of equipment materials and, therefore, increase the risk. The use of the method, proposed in this article, allows for more effective management of safety through the monitoring of the conditions of critical items.

{"title":"A Bayesian approach integrating real-time monitoring data for the estimation of a dynamic RUL of equipment affected by sulfidation and naphthenic acids corrosion","authors":"Giuseppa Ancione , Paolo Bragatto , Maria Francesca Milazzo","doi":"10.1016/j.jlp.2025.105582","DOIUrl":"10.1016/j.jlp.2025.105582","url":null,"abstract":"<div><div>Sulfidation and naphthenic acids corrosion is a common mechanism in processing crude oils with high sulphur content. This research addresses the need for reliable corrosion management strategies in chemical industry in an energy transition context and simultaneously affected by emerging scenarios (economic, geopolitical, etc.). The objective is to develop a dynamic model for estimating the remaining lifetime of equipment, using predictive modelling techniques and monitoring data of process variables that influence the deterioration mechanism. The developed model supports the prevention of negative consequences due to the equipment deterioration and the optimisation of inspection and maintenance programs. By offering an innovative tool for the corrosion management, this research aims to contribute to ongoing efforts improving the efficiency and sustainability of energy production processes. Due to some emerging scenarios, refineries could be oriented to increase the processing of raw materials with high content of sulphur; these are more accessible and economical, but accelerate the deterioration of equipment materials and, therefore, increase the risk. The use of the method, proposed in this article, allows for more effective management of safety through the monitoring of the conditions of critical items.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"95 ","pages":"Article 105582"},"PeriodicalIF":3.6,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143444817","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}

引用次数: 0

Convergence of safety and security within process plants

IF 3.6 3区工程技术 Q2 ENGINEERING, CHEMICAL

Journal of Loss Prevention in The Process Industries

Pub Date : 2025-02-05 DOI: 10.1016/j.jlp.2025.105579

David Rehak , Alena Splichalova , Tomas Lovecek , Martin Hromada , Simona Jemelkova , Alena Oulehlova

Process plants safety is currently an integral part of process industries. This fact is evidenced by a number of important directives, standards, and regulations, such as the Seveso III Directive, Process Safety Management Standard or Occupational Health and Safety Management Systems. By implementing them, personnel safety, process safety, functional safety, etc. are constantly ensured. However, on the other hand, it is necessary to point out that process plants can be a significant source of risk not only from a process point of view, but also as a result of intentional or unintentional external damage. In this context, it is also necessary to pay attention to process plants security. Currently, only a few directives related to the critical infrastructure protection or cyber security pay attention to this area. Based on these facts, the aim of the article is to present possibilities, tools and benefits of the convergence of process plants safety with the physical protection system and organizational resilience. As part of the physical protection system, convergence mechanical barriers, alarm systems, security forces and regime measures can be used for this purpose at the operational level. In contrast, organizational resilience processes can be used to strengthen process plants safety at the management level. In both cases, these security measures can be used in all three-time phases of the accident, i.e. before the accident, during the accident, and after the accident.

{"title":"Convergence of safety and security within process plants","authors":"David Rehak , Alena Splichalova , Tomas Lovecek , Martin Hromada , Simona Jemelkova , Alena Oulehlova","doi":"10.1016/j.jlp.2025.105579","DOIUrl":"10.1016/j.jlp.2025.105579","url":null,"abstract":"<div><div>Process plants safety is currently an integral part of process industries. This fact is evidenced by a number of important directives, standards, and regulations, such as the Seveso III Directive, Process Safety Management Standard or Occupational Health and Safety Management Systems. By implementing them, personnel safety, process safety, functional safety, etc. are constantly ensured. However, on the other hand, it is necessary to point out that process plants can be a significant source of risk not only from a process point of view, but also as a result of intentional or unintentional external damage. In this context, it is also necessary to pay attention to process plants security. Currently, only a few directives related to the critical infrastructure protection or cyber security pay attention to this area. Based on these facts, the aim of the article is to present possibilities, tools and benefits of the convergence of process plants safety with the physical protection system and organizational resilience. As part of the physical protection system, convergence mechanical barriers, alarm systems, security forces and regime measures can be used for this purpose at the operational level. In contrast, organizational resilience processes can be used to strengthen process plants safety at the management level. In both cases, these security measures can be used in all three-time phases of the accident, i.e. before the accident, during the accident, and after the accident.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"94 ","pages":"Article 105579"},"PeriodicalIF":3.6,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143372725","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}

引用次数: 0

Simulation exploration on the interaction between hydrogen/air explosion overpressure and flame morphology under different initial pressures

IF 3.6 3区工程技术 Q2 ENGINEERING, CHEMICAL

Journal of Loss Prevention in The Process Industries

Pub Date : 2025-02-05 DOI: 10.1016/j.jlp.2025.105567

Yaofen Bo, Mingshu Bi, Yanchao Li, Wei Gao

This work explores the flame morphology, pressure field, and velocity field near the flame surface in H

_{2}

/air explosion under different initial pressures, by resorting to numerical simulations. Their interaction effects are revealed and analyzed in detail, which is hard in real-constrained experiments. The results demonstrate that the flame wrinkling factor increases along time in the magnitude of

n

-degree power. The correlation between its temporal rise rate and initial pressure can be reflected by power function. In addition, it can seen that the trend of wrinkling factor with time is similar to that of explosion overpressure at different equivalence ratios. When the wrinkling factor reaches maximum, the rate of pressure rise is biggest. Like flame surface, the isobaric surfaces near the flame surface also wrinkle. Many concave pressure waves appearing after the convex flame surface disturb the flow in burnt zone. Moreover, it can be found that along time, the increasing pressure difference before and after the flame surface will lead to gas decelerating and then reversely accelerating. When the overpressure increases more quickly, the backward gas velocity goes up faster. Note that the backward velocity after convex flame surface is larger than that after concave flame surface.

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引用次数: 0

Evaluation of appropriate intensity measures for seismic performance assessment of base-isolated liquid storage tanks

IF 3.6 3区工程技术 Q2 ENGINEERING, CHEMICAL

Journal of Loss Prevention in The Process Industries

Pub Date : 2025-02-05 DOI: 10.1016/j.jlp.2025.105581

Ketan Kumar Sengar, Sandip Kumar Saha, Maheshreddy Gade

This study proposes appropriate intensity measures (IMs) for seismic performance assessment of base-isolated liquid storage tanks (BI-LSTs) through an extensive evaluation of various scalar IMs and vector-valued IMs of earthquake ground motions. Ground-supported liquid storage tanks (LSTs) with cylindrical shapes are considered for this study. The LSTs are assumed to be base-isolated using lead core rubber bearing (LCRB), and the bearing displacement is considered as the engineering demand parameter (EDP) for assessing the seismic fragility of the BI-LSTs through cloud analysis. It is shown that the average spectral acceleration, i.e., S_a,avg(0.05T_b-T_b) [where T_b is the isolation period], is an efficient, practical, proficient and sufficient IM. Therefore, S_a,avg(0.05T_b-T_b), is recommended as an appropriate IM for seismic performance assessment of ground-supported BI-LSTs. Detailed parametric studies are also performed to investigate the effect of different slenderness ratios of the LST and isolation periods on the selection of the appropriate IM. Further, the seismic risk of the considered BI-LSTs is assessed considering the seismic hazard for Shimla, which is the capital city of the Indian state Himachal Pradesh. For the considered site, the risk of the slender tanks is found to be higher than that of the broad tanks, regardless of the isolation period. It is also concluded that the peak bearing displacement demand corresponding to the maximum considered earthquake is substantially lower than that obtained as per the selected design code recommendations.

{"title":"Evaluation of appropriate intensity measures for seismic performance assessment of base-isolated liquid storage tanks","authors":"Ketan Kumar Sengar, Sandip Kumar Saha, Maheshreddy Gade","doi":"10.1016/j.jlp.2025.105581","DOIUrl":"10.1016/j.jlp.2025.105581","url":null,"abstract":"<div><div>This study proposes appropriate intensity measures (IMs) for seismic performance assessment of base-isolated liquid storage tanks (BI-LSTs) through an extensive evaluation of various scalar IMs and vector-valued IMs of earthquake ground motions. Ground-supported liquid storage tanks (LSTs) with cylindrical shapes are considered for this study. The LSTs are assumed to be base-isolated using lead core rubber bearing (LCRB), and the bearing displacement is considered as the engineering demand parameter (EDP) for assessing the seismic fragility of the BI-LSTs through cloud analysis. It is shown that the average spectral acceleration, i.e., <em>S</em><sub><em>a,avg</em></sub>(0.05<em>T</em><sub><em>b</em></sub>-<em>T</em><sub><em>b</em></sub>) [where <em>T</em><sub><em>b</em></sub> is the isolation period], is an efficient, practical, proficient and sufficient IM. Therefore, <em>S</em><sub><em>a,avg</em></sub>(0.05<em>T</em><sub><em>b</em></sub>-<em>T</em><sub><em>b</em></sub>), is recommended as an appropriate IM for seismic performance assessment of ground-supported BI-LSTs. Detailed parametric studies are also performed to investigate the effect of different slenderness ratios of the LST and isolation periods on the selection of the appropriate IM. Further, the seismic risk of the considered BI-LSTs is assessed considering the seismic hazard for Shimla, which is the capital city of the Indian state Himachal Pradesh. For the considered site, the risk of the slender tanks is found to be higher than that of the broad tanks, regardless of the isolation period. It is also concluded that the peak bearing displacement demand corresponding to the maximum considered earthquake is substantially lower than that obtained as per the selected design code recommendations.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"94 ","pages":"Article 105581"},"PeriodicalIF":3.6,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143375835","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}

引用次数: 0

Dynamic prediction of multisensor gas concentration in semi-closed spaces: A unified spatiotemporal inter-dependencies approach

IF 3.6 3区工程技术 Q2 ENGINEERING, CHEMICAL

Journal of Loss Prevention in The Process Industries

Pub Date : 2025-02-04 DOI: 10.1016/j.jlp.2025.105569

Shikuan Chen , Wenli Du , Bing Wang , Chenxi Cao

Flammable gas leakage in industrial environments poses significant risks to human health and environmental safety. Developing accurate and efficient spatiotemporal models for gas dispersion is essential for mitigating these dangers. The gas diffusion is inherently a spatiotemporal process, yet most research has focused on modeling spatial or temporal correlations separately, failing to capture the dynamic relationships between various variables. To overcome this limitation, we propose a novel approach based on FourierGNN, a multivariate time series forecasting (MTS) method, which treats concentration values from multiple sensors as multivariates and predicts their future trends. By utilizing a fully-connected hypervariate graph structure, the model adaptively learns high-resolution representations across different timestamps and variates simultaneously. Experimental data are generated by simulating a methane leak scenario in a semi-closed gas turbine enclosure using computational fluid dynamics (CFD) software. The method is evaluated on the dataset with three distinct prediction horizons and compared with FC-LSTM and StemGNN. Results indicate that the approach outperforms others in terms of MAPE, MAE and RMSE across different prediction horizons while reducing parameter counts by 61.26% and 82.83%, respectively. Furthermore, the method demonstrates robustness under varying noise levels, confirming its reliability.

{"title":"Dynamic prediction of multisensor gas concentration in semi-closed spaces: A unified spatiotemporal inter-dependencies approach","authors":"Shikuan Chen , Wenli Du , Bing Wang , Chenxi Cao","doi":"10.1016/j.jlp.2025.105569","DOIUrl":"10.1016/j.jlp.2025.105569","url":null,"abstract":"<div><div>Flammable gas leakage in industrial environments poses significant risks to human health and environmental safety. Developing accurate and efficient spatiotemporal models for gas dispersion is essential for mitigating these dangers. The gas diffusion is inherently a spatiotemporal process, yet most research has focused on modeling spatial or temporal correlations separately, failing to capture the dynamic relationships between various variables. To overcome this limitation, we propose a novel approach based on FourierGNN, a multivariate time series forecasting (MTS) method, which treats concentration values from multiple sensors as multivariates and predicts their future trends. By utilizing a fully-connected hypervariate graph structure, the model adaptively learns high-resolution representations across different timestamps and variates simultaneously. Experimental data are generated by simulating a methane leak scenario in a semi-closed gas turbine enclosure using computational fluid dynamics (CFD) software. The method is evaluated on the dataset with three distinct prediction horizons and compared with FC-LSTM and StemGNN. Results indicate that the approach outperforms others in terms of MAPE, MAE and RMSE across different prediction horizons while reducing parameter counts by 61.26% and 82.83%, respectively. Furthermore, the method demonstrates robustness under varying noise levels, confirming its reliability.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"94 ","pages":"Article 105569"},"PeriodicalIF":3.6,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143296603","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}

引用次数: 0

Human factors analysis and classification system - positive experience (HFACS-PE): New approaches to aviation accident and incident investigation

IF 3.6 3区工程技术 Q2 ENGINEERING, CHEMICAL

Journal of Loss Prevention in The Process Industries

Pub Date : 2025-02-04 DOI: 10.1016/j.jlp.2025.105578

Ondrej Zavila

The article is aimed at presenting a new systematic approach to working with the positive elements of the chains of causes of aviation accidents and incidents in the process of their investigation. This new systematic approach is based on the principles of the Human Factors Analysis and Classification System (HFACS) method and thus constitutes a modification of it (HFACS-PE). By combining the original concept of the HFACS method, aimed at identifying the causes of human failures, and its new modified concept, HFACS-PE, aimed at identifying the causes of human successes, the possibility of a comprehensive view of the air accident or incident under investigation is enabled. After a trial application of the combination of both methods to several case studies from real-life civil and military air traffic practice at national and international level, the validity, practicality, functionality and effectiveness of this new analytical approach with potential for further development can be concluded.

引用次数: 0

Ignition characteristics of mixtures of micro-sized wood dusts and centimeter-sized flakes and fibers initiated by deposit fires

IF 3.6 3区工程技术 Q2 ENGINEERING, CHEMICAL

Journal of Loss Prevention in The Process Industries

Pub Date : 2025-02-03 DOI: 10.1016/j.jlp.2025.105575

Chang Li , Zhiyang Zhang , Kaiwen Sun , Caodi He , Chunmiao Yuan

As a highly flammable biomass dust, the explosion potential of wood dust has been widely recognized. However, compared with wood dust, other larger-sized wood processing by-products, such as wood flakes and wood fibers, pose a lower explosion risk due to their difficulty in forming dust clouds. Nevertheless, their fire risk should not be underestimated. Accident case analyses have shown that the explosion risk may increase when wood dust is mixed with wood processing by-products like wood flakes. This study experimentally investigated the ignition characteristics of mixtures of wood dust, wood flakes, and wood fibers, with a focus on the effects of mixing ratios, particle sizes, and spatial confinement on explosion risk. Whether in confined or open spaces, smoldering wood dust (D50 = 137 μm) as an ignition source was found to be insufficient to trigger a dust explosion. In mixtures of wood dust with wood flakes or wood fibers, the mixing ratio played a significant role in explosion risk. When the wood dust content exceeded 50 wt %, explosions occurred at both 0.2 MPa and 0.4 MPa dispersal pressures, with the key factor being the contact between the fireballs generated by burning wood flakes or wood fibers and the wood dust cloud. Conversely, when the wood dust content was lower (25 wt %), no explosion occurred. This study provides experimental evidence for the safe management of wood processing and biomass fuels. It recommends that enhanced preventive measures be implemented during storage and handling, particularly for mixtures with a high wood dust content, to mitigate explosion risks.

{"title":"Ignition characteristics of mixtures of micro-sized wood dusts and centimeter-sized flakes and fibers initiated by deposit fires","authors":"Chang Li , Zhiyang Zhang , Kaiwen Sun , Caodi He , Chunmiao Yuan","doi":"10.1016/j.jlp.2025.105575","DOIUrl":"10.1016/j.jlp.2025.105575","url":null,"abstract":"<div><div>As a highly flammable biomass dust, the explosion potential of wood dust has been widely recognized. However, compared with wood dust, other larger-sized wood processing by-products, such as wood flakes and wood fibers, pose a lower explosion risk due to their difficulty in forming dust clouds. Nevertheless, their fire risk should not be underestimated. Accident case analyses have shown that the explosion risk may increase when wood dust is mixed with wood processing by-products like wood flakes. This study experimentally investigated the ignition characteristics of mixtures of wood dust, wood flakes, and wood fibers, with a focus on the effects of mixing ratios, particle sizes, and spatial confinement on explosion risk. Whether in confined or open spaces, smoldering wood dust (D50 = 137 μm) as an ignition source was found to be insufficient to trigger a dust explosion. In mixtures of wood dust with wood flakes or wood fibers, the mixing ratio played a significant role in explosion risk. When the wood dust content exceeded 50 wt %, explosions occurred at both 0.2 MPa and 0.4 MPa dispersal pressures, with the key factor being the contact between the fireballs generated by burning wood flakes or wood fibers and the wood dust cloud. Conversely, when the wood dust content was lower (25 wt %), no explosion occurred. This study provides experimental evidence for the safe management of wood processing and biomass fuels. It recommends that enhanced preventive measures be implemented during storage and handling, particularly for mixtures with a high wood dust content, to mitigate explosion risks.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"94 ","pages":"Article 105575"},"PeriodicalIF":3.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349710","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}

引用次数: 0

ASTM-E659 standardized test analysis and results for Synthetic Paraffinic Kerosene

IF 3.6 3区工程技术 Q2 ENGINEERING, CHEMICAL

Journal of Loss Prevention in The Process Industries

Pub Date : 2025-02-03 DOI: 10.1016/j.jlp.2025.105568

Charline Fouchier , Joseph Shepherd

Improvements on ASTM-E659 apparatus are used to investigate autoignition (AIT) of a Synthetic Paraffinic Kerosene (SPK). The apparatus injection system has been automated, and the temperature acquisition system has been improved to reduce variability due to human factors. The SPK was compared with a Jet A standard, POSF4658. The two fuels have a similar range of combustion behaviors but the SPK shows a lower AIT and lower effective activation energy than Jet A. A statistical analysis is proposed to quantify the likelihood of ignition for a range of injected fuel volumes and types of ignition events. We observe that luminous ignition (Mode I) and non-luminous cool flame (Mode III) both result in a vigorous reaction and comparable peak temperatures. This highlights the importance of using the temperature signal to detect ignition instead of relying only on flame visualization. Surveys of the temperature distribution inside the hot vessel demonstrate that a single point measurement is not sufficient to characterize the temperature and that subtle changes in the assembly of the apparatus can significantly alter the temperature distribution and the measured AIT.

{"title":"ASTM-E659 standardized test analysis and results for Synthetic Paraffinic Kerosene","authors":"Charline Fouchier , Joseph Shepherd","doi":"10.1016/j.jlp.2025.105568","DOIUrl":"10.1016/j.jlp.2025.105568","url":null,"abstract":"<div><div>Improvements on ASTM-E659 apparatus are used to investigate autoignition (AIT) of a Synthetic Paraffinic Kerosene (SPK). The apparatus injection system has been automated, and the temperature acquisition system has been improved to reduce variability due to human factors. The SPK was compared with a Jet A standard, POSF4658. The two fuels have a similar range of combustion behaviors but the SPK shows a lower AIT and lower effective activation energy than Jet A. A statistical analysis is proposed to quantify the likelihood of ignition for a range of injected fuel volumes and types of ignition events. We observe that luminous ignition (Mode I) and non-luminous cool flame (Mode III) both result in a vigorous reaction and comparable peak temperatures. This highlights the importance of using the temperature signal to detect ignition instead of relying only on flame visualization. Surveys of the temperature distribution inside the hot vessel demonstrate that a single point measurement is not sufficient to characterize the temperature and that subtle changes in the assembly of the apparatus can significantly alter the temperature distribution and the measured AIT.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"94 ","pages":"Article 105568"},"PeriodicalIF":3.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143296602","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}

引用次数: 0

Numerical study of horizontal liquid tank under impact of explosion fragment based on coupled Eulerian-Lagrangian method

IF 3.6 3区工程技术 Q2 ENGINEERING, CHEMICAL

Journal of Loss Prevention in The Process Industries

Pub Date : 2025-02-03 DOI: 10.1016/j.jlp.2025.105576

Zilong Deng , Mingshu Bi , Di Yu , Qiangqiang Hao , Xing Liu , Weiye Luo , Shaochen Sun , Jingjie Ren

Explosion fragments are one of the crucial factors leading to catastrophic domino effects. This paper reveals the dynamic response and failure behavior of horizontal liquid tanks caused by explosion fragments. According to material tests, the strain hardening and the strain rate hardening models are modified based on the standard Johnson-Cook (J-C) model, and a damage scalar representing the damage evolution is defined. Subsequently, the fluid-structure interaction model of the horizontal liquid tank under the impact of the explosion fragment is established based on the coupled Eulerian-Lagrangian (CEL) method to describe the dynamic behavior of the tank with gasoline. The state of the fluid is captured, and the role of the fluid in influencing the deformation and fracture of the tank wall is quantized. The results show that the modified material model can appropriately describe the failure process of the tank. In addition, the deformation displacement of liquid tanks and impact force of fragments at different impact velocities are discussed, and the effect of liquid filling degree on tank failures is revealed. The proposed numerical method and findings can guide the safety assessment of tanks.

{"title":"Numerical study of horizontal liquid tank under impact of explosion fragment based on coupled Eulerian-Lagrangian method","authors":"Zilong Deng , Mingshu Bi , Di Yu , Qiangqiang Hao , Xing Liu , Weiye Luo , Shaochen Sun , Jingjie Ren","doi":"10.1016/j.jlp.2025.105576","DOIUrl":"10.1016/j.jlp.2025.105576","url":null,"abstract":"<div><div>Explosion fragments are one of the crucial factors leading to catastrophic domino effects. This paper reveals the dynamic response and failure behavior of horizontal liquid tanks caused by explosion fragments. According to material tests, the strain hardening and the strain rate hardening models are modified based on the standard Johnson-Cook (J-C) model, and a damage scalar representing the damage evolution is defined. Subsequently, the fluid-structure interaction model of the horizontal liquid tank under the impact of the explosion fragment is established based on the coupled Eulerian-Lagrangian (CEL) method to describe the dynamic behavior of the tank with gasoline. The state of the fluid is captured, and the role of the fluid in influencing the deformation and fracture of the tank wall is quantized. The results show that the modified material model can appropriately describe the failure process of the tank. In addition, the deformation displacement of liquid tanks and impact force of fragments at different impact velocities are discussed, and the effect of liquid filling degree on tank failures is revealed. The proposed numerical method and findings can guide the safety assessment of tanks.</div></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":"94 ","pages":"Article 105576"},"PeriodicalIF":3.6,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143372726","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}

引用次数: 0

4A zeolite-loaded bicarbonate as an anti-caking dust explosion inhibitor

IF 3.6 3区工程技术 Q2 ENGINEERING, CHEMICAL

Journal of Loss Prevention in The Process Industries

Pub Date : 2025-02-03 DOI: 10.1016/j.jlp.2025.105577

Yueshuang Xia, Wenling Guan, Chengjie Dong, Yutong Wang, Chenxiang Zhang, Weijia Tian

This study aims to improve the explosion suppression performance of bicarbonate powders (KHCO₃ and NaHCO₃) against combustible dust and enhance their anti-caking properties by loading bicarbonate onto the surface of 4A zeolite. Using wet impregnation and evaporative crystallization, KHCO₃ and NaHCO₃ particles were successfully attached to the tetrahedral structure of 4A zeolite, resulting in composite dust explosion inhibitors, Zeolite-KHCO₃ and Zeolite-NaHCO₃, with large specific surface areas. The inhibition efficiencies of bicarbonate and 4A zeolite-loaded bicarbonate on wheat starch explosions were tested using a 150 cm Hartmann tube. The anti-caking properties of the composite were also evaluated under high humidity conditions. Results showed that Zeolite-KHCO₃ exhibited enhanced explosion suppression efficiency compared to KHCO₃, with a minimum complete inerting ratio (MIR) of 0.05, while Zeolite-NaHCO₃ exhibited an MIR of 0.12, consistent with NaHCO₃. The accelerated caking tests revealed that in contrast to KHCO₃ and NaHCO₃, Zeolite-KHCO₃ and Zeolite-NaHCO₃ exhibited superior anti-caking properties due to the drying effect of zeolite, with a caking rate of less than 0.1. These findings indicate that 4A zeolite-loaded bicarbonates can drastically reduce the caking tendency of bicarbonate while maintaining or enhancing its explosion suppression efficiency.

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