Journal of Loss Prevention in The Process Industries最新文献_第10页

Ranking of sectors in organized industrial zones according to Natech risk criteria: An application for Gaziantep province in Türkiye 根据 Natech 风险标准对有组织工业区各部门进行排序：在土耳其加济安泰普省的应用

IF 3.6 3区工程技术

Journal of Loss Prevention in The Process Industries Pub Date : 2024-06-27 DOI: 10.1016/j.jlp.2024.105377

Emel Guven, Mehmet Pinarbasi, Hacı Mehmet Alakas, Tamer Eren

{"title":"Ranking of sectors in organized industrial zones according to Natech risk criteria: An application for Gaziantep province in Türkiye","authors":"Emel Guven, Mehmet Pinarbasi, Hacı Mehmet Alakas, Tamer Eren","doi":"10.1016/j.jlp.2024.105377","DOIUrl":"https://doi.org/10.1016/j.jlp.2024.105377","url":null,"abstract":"<div><p>Technological accidents triggered by natural disasters are called Natech accidents. Natech accidents have the impact of increasing the negative effects of disasters. One of the places at risk for a Natech accident is the Organized Industrial Zones (OIZs), where many industrial establishments are located. Although businesses within OIZs are evaluated in terms of security, Natech risk assessment is often ignored. This situation causes Natech accidents to occur. For these reasons, the study focused on evaluating OIZs regarding Natech risk. Many criteria such as electrical resources, natural gas, distance between buildings and so forth are taken into account in Natech's risk assessment. However, it is challenging to make clear decisions and predictions about these criteria due to the nature of the disaster. There is inherently uncertainty and confusion during and after a disaster. For this reason, using fuzzy sets to evaluate criteria is more appropriate. Therefore, the study uses Pythagorean fuzzy sets, which have a wider fuzzy evaluation area. This study also includes the evaluation of alternative sectors in terms of Natech risk. For this purpose, Pythagorean Fuzzy Analytic Hierarchy Process (PFAHP) and Pythagorean Fuzzy the Technique for Order of Preference by Similarity to Ideal Solution (PFTOPSIS) methods are used. OIZ in Gaziantep has the largest area compared to those in other cities in Türkiye, is chosen as the application area of the study. As a result of the study, it is determined that the release of hazardous substances and flammable criteria is the most crucial criterion, and the most dangerous sector in terms of Natech risk is the chemical sector.</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141483342","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

Experimental study on responsiveness of multi-spectrum infrared flame detectors to diffuse flames partially hidden by obstacles installed in oil and gas processing facilities 关于多光谱红外火焰探测器对石油和天然气加工设施中安装的部分被障碍物遮挡的弥漫火焰的响应能力的实验研究

IF 3.6 3区工程技术

Journal of Loss Prevention in The Process Industries Pub Date : 2024-06-24 DOI: 10.1016/j.jlp.2024.105378

Kotaro Nitta , Satoshi Kanno , Yasushi Oka

{"title":"Experimental study on responsiveness of multi-spectrum infrared flame detectors to diffuse flames partially hidden by obstacles installed in oil and gas processing facilities","authors":"Kotaro Nitta , Satoshi Kanno , Yasushi Oka","doi":"10.1016/j.jlp.2024.105378","DOIUrl":"https://doi.org/10.1016/j.jlp.2024.105378","url":null,"abstract":"<div><p>Multi-spectrum infrared flame detectors are commonly installed in many oil and gas processing facilities for an early fire detection. Since these facilities are filled with equipment and piping, the visibility of flames from infrared flame detector is a critical factor for reliable and early detection. However, conventional methodology of fire mapping study does not consider the three-dimensional spread of flames. Therefore, this paper focuses on the responsiveness of multi-spectrum infrared flame detectors under the condition that flame is partially hidden by such obstructions.</p><p>A series of full-scale experiments was conducted to examine the responsiveness of infrared flame detectors to flames partially hidden by shielding objects. These experiments simulated various conditions seen in the oil and gas processing facilities.</p><p>The experiments have confirmed the relationship between the intensity of infrared energy and the obstruction ratio. Specifically, the infrared energy at a wavelength of 4.504 μm emitted from a flame hidden by shielding objects can be quantified using the obstruction ratio, the ratio of visible area of partially hidden flame. By using these indices, it has been clarified that the infrared energy emitted from a partially hidden flame at the location of an infrared flame detector can be estimated. The responsiveness of detectors depends more on the intensity of the infrared energy near 4.5 μm than on flame pulsation. Multi-spectrum flame detectors, commercially available and employed in this study, exhibited performance equal to or even more sensitive than what is stated in their data sheets. Quantitative evaluation of the responsiveness of flame detectors to partially hidden flames revealed in this study can contribute to the improvement of the fire mapping study for the realistic design evaluation in the oil and gas processing facilities.</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141483345","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

Analysis of risk priority number of FMEA and surprise index for components of 7 kW electric vehicle charger 7 kW 电动汽车充电器部件的 FMEA 风险优先级数和意外指数分析

IF 3.6 3区工程技术

Journal of Loss Prevention in The Process Industries Pub Date : 2024-06-22 DOI: 10.1016/j.jlp.2024.105375

Suk Keun Hwang, Doo-Hyun Kim, Sung-Chul Kim

{"title":"Analysis of risk priority number of FMEA and surprise index for components of 7 kW electric vehicle charger","authors":"Suk Keun Hwang, Doo-Hyun Kim, Sung-Chul Kim","doi":"10.1016/j.jlp.2024.105375","DOIUrl":"https://doi.org/10.1016/j.jlp.2024.105375","url":null,"abstract":"<div><p>The purpose of this study is to suggest systematic management measures by analyzing the risk of related part through FMEA of RPN index based on severity, occurrence, detection of 543,900 7 kW EV chargers installed until 2023 in South Korea and SI based on severity, detection and information score scale. To achieve this goal, this research investigated the current status of 7 kW EV chargers, and categorized the parts and assemblies of the investigated chargers. The failure mode of classified components was explored based on the 2016 edition of FMD, and the failure mode rate and information score of SI were referred to data contained in Nprd 2016, Eprd 2014; Fmd 2016. The identified failure mode, failure causes, and failure effects were described by domestic experts in EV charger-related sectors.</p><p>There were 4 risk factors (10%) felt under “Group A″, the upper 10% of RPN. Of these, inverter overheating ranked in the highest. Moreover, the analysis revealed one case of corrosion of the enclosure and overheating in the main board and communication board each. The effect of overheating was confirmed in these components excluding the enclosure. From the SI perspective, high values were obtained in 4 parts of AC/DC breaker, one of connector, and one of cable. Based on the extracted data, management strategies were suggested.</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141593625","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

Research on the explosion vent external composite disaster induced by dust explosion inside the dust collector 除尘器内部粉尘爆炸诱发的爆炸风口外部复合灾害研究

IF 3.6 3区工程技术

Journal of Loss Prevention in The Process Industries Pub Date : 2024-06-20 DOI: 10.1016/j.jlp.2024.105376

Lei Pang , Jiqing Liu

{"title":"Research on the explosion vent external composite disaster induced by dust explosion inside the dust collector","authors":"Lei Pang , Jiqing Liu","doi":"10.1016/j.jlp.2024.105376","DOIUrl":"https://doi.org/10.1016/j.jlp.2024.105376","url":null,"abstract":"<div><p>With the help of computational fluid dynamics (CFD) technology, this research focuses on the quantitative effects of the explosion venting area (S), static opening pressure of the vent (P<sub>stat</sub>) and dust cloud concentration (C<sub>D</sub>) on the explosion overpressure, high-speed airflow and high-temperature flame in the explosion venting zone. The results show that the explosion disaster along the explosion venting zone in general shows an oscillating fluctuating trend of attenuation, and the closer to the explosion vent explosion disaster is more serious. The increase of S will enhance the nonlinear change of explosion disaster, and the change law of explosion overpressure is completely opposite to that of high-speed airflow and high-temperature flame. With the increase of P<sub>stat</sub>, the coupling effect of air intake pipe and dust collector is strengthened, which further aggravates the spread of explosion disaster. The change of C<sub>D</sub> has both promoting and restraining effects on the spread of explosion disaster. The maximum overpressure (P), maximum wind speed (V), maximum flame speed (Fs) and maximum flame distance (Fd) in the explosion venting zone are 0.022 MPa, 494.5 m/s, 112.9 m/s and 10.9 m, respectively, and the venting safety distance is more than 11 m. In addition, the degree of impact on explosion disaster is in the following order: P<sub>stat</sub> > A > C<sub>D</sub>. This research can provide a reference basis for the effective prevention and control of the composite disaster external the explosion vent induced by dust explosion inside the dust collector.</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141439314","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

Erosion and intergranular corrosion induced failure of S31254 stainless steel – Case study on Venturi scrubber in a natural gas purification plant S31254 不锈钢的腐蚀和晶间腐蚀诱发故障 - 天然气净化厂文丘里洗涤器案例研究

IF 3.6 3区工程技术

Journal of Loss Prevention in The Process Industries Pub Date : 2024-06-20 DOI: 10.1016/j.jlp.2024.105374

Ganghua Huang , Jingjing Jiang , Rui Fan , Chao Miao , Yongfan Tang , Shuang Yang

{"title":"Erosion and intergranular corrosion induced failure of S31254 stainless steel – Case study on Venturi scrubber in a natural gas purification plant","authors":"Ganghua Huang , Jingjing Jiang , Rui Fan , Chao Miao , Yongfan Tang , Shuang Yang","doi":"10.1016/j.jlp.2024.105374","DOIUrl":"https://doi.org/10.1016/j.jlp.2024.105374","url":null,"abstract":"<div><p>The flue gases such as SO<sub>2</sub>, SO<sub>3</sub>, and CO<sub>2</sub> generated during the purification process of sulfur-containing natural gas need to be treated to a certain concentration before they can be discharged into the atmosphere. The flue gas unit of a purification plant in Sichuan adopts the new Cansolv flue gas treatment process. After running for a period of time, the Venturi scrubber experienced severe corrosion failure, resulting in equipment shutdown and significant economic losses. This paper utilizes an actual failed device as a case study to analyze the corrosion environment of the Venturi scrubber. It conducts a comprehensive failure analysis, encompassing material mechanical properties, metallographic analysis, and failure microstructure analysis, aiming to elucidate the reasons behind the Venturi scrubber failure. Systematic analysis shows that the manufacturing materials used in this scrubber meet all design requirements. However, flue gas at temperatures reaching 280 °C enters the scrubber tower at a flow rate exceeding 10 m/s. The dissolution of acidic gases leads to a significant drop in the pH of the cooling water to 1, manifesting evident signs of erosion corrosion and intergranular corrosion on the material surface. These observations suggest that erosion and intergranular corrosion in high-temperature acidic environments are the predominant factors contributing to the corrosion failure of the Venturi scrubber.</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141483343","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

Prediction of the influence of pressure on flash points of liquid fuels at sub-atmospheric pressure 预测压力对亚大气压下液体燃料闪点的影响

IF 3.6 3区工程技术

Journal of Loss Prevention in The Process Industries Pub Date : 2024-06-14 DOI: 10.1016/j.jlp.2024.105373

Horng-Jang Liaw

{"title":"Prediction of the influence of pressure on flash points of liquid fuels at sub-atmospheric pressure","authors":"Horng-Jang Liaw","doi":"10.1016/j.jlp.2024.105373","DOIUrl":"10.1016/j.jlp.2024.105373","url":null,"abstract":"<div><p>Aircraft fuel tanks experience sub-atmospheric pressure during flight, and so do fuels during storage and transportation at high altitudes. Additionally, chemical processes commonly operate at non-atmospheric pressure. Flash points measured at sub-atmospheric pressure are lower than those measured at the standard atmospheric pressure of 101.3 kPa, signifying that ignitable liquids at sub-atmospheric pressure are more hazardous than those at 101.3 kPa. This study developed a model for predicting the influence of pressure on flash points on the basis of basic thermodynamic characteristics; this model was validated against experimental data obtained from the literature for six single-component and multiple-component liquid fuels at sub-atmospheric pressure. The proposed model effectively predicts closed-cup flash points, with small deviations in the range 0.18 °C–1.25 °C. However, because the model's assumption of vapor–liquid equilibrium was violated in the experiments, the predicted open-cup flash points did not agree well with their experimental counterparts, with the deviations in the range 1.11 °C–12.55 °C. Nevertheless, the trends predicted by the model agreed with those in the experimental data. Furthermore, standard flash point test method (such as ASTM <span>D56</span><svg><path></path></svg>-22, <span>ASTM</span><svg><path></path></svg> <span>D93</span><svg><path></path></svg>-20, and <span>ASTM</span><svg><path></path></svg> <span>D7094</span><svg><path></path></svg>-17) are based on a linear formula for correcting flash points measured at pressures other than 101.3 kPa. When the ambient pressure is approximately 101.3 kPa during flash point testing, the slope value of the correction formula should be changed from 0.25 to 0.20.</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":null,"pages":null},"PeriodicalIF":3.6,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141394599","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

Development of a risk assessment approach by combining SPA-fuzzy method with Petri-net 将 SPA-模糊法与 Petri 网相结合，开发风险评估方法

IF 3.6 3区工程技术

Journal of Loss Prevention in The Process Industries Pub Date : 2024-06-13 DOI: 10.1016/j.jlp.2024.105372

Jianfeng Zhou , Genserik Reniers

引用次数: 0

Analysis of touch voltage and electric shock risk before and after installation of equipotential bonding in the sewage treatment plants 污水处理厂安装等电位联结前后的触电电压和电击风险分析

IF 3.5 3区工程技术

Journal of Loss Prevention in The Process Industries Pub Date : 2024-06-13 DOI: 10.1016/j.jlp.2024.105371

Seung Youn Bang , Doo Hyun Kim , Sung Chul Kim

{"title":"Analysis of touch voltage and electric shock risk before and after installation of equipotential bonding in the sewage treatment plants","authors":"Seung Youn Bang , Doo Hyun Kim , Sung Chul Kim","doi":"10.1016/j.jlp.2024.105371","DOIUrl":"10.1016/j.jlp.2024.105371","url":null,"abstract":"<div><p>The purpose of this study is to derive the risk of electric shock based on the KEC (Korea Electro-technical Code), which was fully implemented in Korea in 2022, and IEC-60479. Therefore, a sewage treatment facility, where the risk of electric shock due to leakage current is high due to the possibility of damage to the insulation parts of electrical equipment caused by high humidity and the presence of corrosive gases, was selected. The risk of electric shock was analyzed in the event of leakage current occurring in the electrical equipment at the selected facility. To achieve the objectives of this study, the grounding resistance of the facility was measured to observe the trends in the management state of the grounding resistance. The resistance values of protective conductors and grounding conductors connected to exposed conductive parts and extraneous conductive parts were also measured. Additionally, based on the KEC, the grounding system was analyzed, and the touch voltage occurring during electrical leakage was calculated. Based on this, the risk of electric shock was analyzed according to the current flow using IEC-60479. As a result of measuring the resistance values of protective conductors, it was found that some protective conductors exceeded 1[Ω]. In all facilities, the risk of electric shock in the AC-4.2 range (with a 50% or higher probability of ventricular fibrillation) was observed when electrical leakage occurred. Additionally, when assuming the implementation of equipotential bonding, the analysis of electric shock risk revealed AC-3 range (potentially reversible effects on the heart) in two locations, and AC-2 range (no generally perceived physiological effects) in all other sections. These findings emphasize the urgent need for on-site implementation of equipotential bonding in compliance with the KEC. Furthermore, resistance measurement and management of the protective conductors are necessary.</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141408311","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

Risk assessment and simulation of gas pipeline leakage based on Markov chain theory 基于马尔可夫链理论的天然气管道泄漏风险评估与模拟

IF 3.5 3区工程技术

Journal of Loss Prevention in The Process Industries Pub Date : 2024-06-10 DOI: 10.1016/j.jlp.2024.105370

Yue Feng , Jingqi Gao , Xinwei Yin , Jianwu Chen , Xiang Wu

{"title":"Risk assessment and simulation of gas pipeline leakage based on Markov chain theory","authors":"Yue Feng , Jingqi Gao , Xinwei Yin , Jianwu Chen , Xiang Wu","doi":"10.1016/j.jlp.2024.105370","DOIUrl":"https://doi.org/10.1016/j.jlp.2024.105370","url":null,"abstract":"<div><p>Gas pipeline leakage may lead to fire, explosion and gas poisoning, thus causing a large number of injuries and property damage. This paper focuses on the chain characteristics presented by the development process of city gas pipeline leakage, based on Markov chain theory, studies the disaster-causing process and the mechanism of disaster chain formation for the leakage, establishes the disaster chain, evaluates the pipeline operation status and quantifies the failure probability of gas pipeline leakage to determine the causes of the leakage. Subsequently, Pipeline Studio is applied to simulate the consequences of gas pipeline leakage to realize the risk analysis. The analysis is based on Markov chain theory to calculate the probability of leakage and disaster-causing causes, analyze the consequences of gas pipeline leakage, and realize the diagnosis of the causes of gas pipeline leakage accidents and the prediction of the accident development trend. Finally, using European gas pipeline accident data to prove the effectiveness of the method, the result shows that gas pipeline leakage accidents are mainly caused by third-party damage and corrosion, which is consistent with the real situation and provides a reference for risk analysis and accident prevention of gas pipeline leakage.</p></div>","PeriodicalId":16291,"journal":{"name":"Journal of Loss Prevention in The Process Industries","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141314613","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

Suppression characteristics and mechanisms of solid inhibitors on sawdust explosions in dust transportation systems 固体抑制剂对粉尘输送系统中锯末爆炸的抑制特性和机制

IF 3.5 3区工程技术

Journal of Loss Prevention in The Process Industries Pub Date : 2024-06-04 DOI: 10.1016/j.jlp.2024.105361

Jianxu Ding , Yufang Chen , Maodong Li , Zhiyue Han , Xiangbao Meng , Runzhi Li , Shihang Li , Ernesto Salzano

引用次数: 0