Process Safety Progress最新文献_第3页

Retrospective on the risk matrix, part II: Mathematics 风险矩阵回顾，第二部分：数学

IF 1 4区工程技术

Process Safety Progress Pub Date : 2024-05-09 DOI: 10.1002/prs.12614

James A. Moseman

引用次数: 0

Optimal hybrid layout of point and open‐path gas detectors in process facilities of natural gas stations 天然气站工艺设备中点式和开路式气体探测器的最佳混合布局

IF 1 4区工程技术

Process Safety Progress Pub Date : 2024-05-09 DOI: 10.1002/prs.12607

Fei Xiao, Hao Qian, Lisheng Liu, Lingling Shao

{"title":"Optimal hybrid layout of point and open‐path gas detectors in process facilities of natural gas stations","authors":"Fei Xiao, Hao Qian, Lisheng Liu, Lingling Shao","doi":"10.1002/prs.12607","DOIUrl":"https://doi.org/10.1002/prs.12607","url":null,"abstract":"Because open‐path gas detectors offer superior technical performance, leakage monitoring systems tend to use a hybrid layout of point and open‐path gas detectors. However, most research on the optimized layout of leakage monitoring has focused only on point gas detectors. In this paper, an optimization model for a hybrid layout of point and open‐path gas detectors was proposed considering the cost–benefit ratio and detection time. As the measured value of an open‐path gas detector is an integral concentration, a monitor line in the simulation was calculated via the approximate rectangle method. The results showed that the use of a multiobjective gas detector layout considering the cost–benefit ratio and an improved non‐dominated sorting genetic algorithm (NSGA‐II) could optimize the layout of hybrid detectors. The hybrid layout was analyzed in a case study of process facilities at a natural gas station. As the number of detectors increased (safety investment), the proportion of open‐path gas detectors increased, improving both leakage monitoring performance and the cost–benefit ratio. Additionally, the layout of the point gas detectors was analyzed. A comparison of objective function values for detection time showed the superiority of the hybrid layout in our research.","PeriodicalId":20680,"journal":{"name":"Process Safety Progress","volume":"37 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140940596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Special Issue: The 4th International Symposium on Urban and Industrial Safety 特刊：第四届城市与工业安全国际研讨会

IF 1 4区工程技术

Process Safety Progress Pub Date : 2024-05-07 DOI: 10.1002/prs.12616

Xin Zhang, Yong Pan

引用次数: 0

AI‐PSM: Where are we now? AI-PSM：我们现在在哪里？

IF 1 4区工程技术

Process Safety Progress Pub Date : 2024-05-07 DOI: 10.1002/prs.12610

Rainer Hoff

引用次数: 0

Introductions from the new editors of Process Safety Progress 工艺安全进展》新编辑的介绍

IF 1 4区工程技术

Process Safety Progress Pub Date : 2024-04-29 DOI: 10.1002/prs.12612

Albert Ness

引用次数: 0

Procedure excellence: Changing paradigms to enable human reliability 程序卓越：改变模式，实现人的可靠性

IF 1 4区工程技术

Process Safety Progress Pub Date : 2024-04-22 DOI: 10.1002/prs.12603

Elliot Wolf‐Stokes, Rob Fisher

引用次数: 0

Experimental study on the explosion‐resistant performance of blast walls and doors of gas facilities 燃气设施防爆墙和门的防爆性能实验研究

IF 1 4区工程技术

Process Safety Progress Pub Date : 2024-04-18 DOI: 10.1002/prs.12606

Young Jo Ryu, Yong Gil Lee, Dal Jae Park

{"title":"Experimental study on the explosion‐resistant performance of blast walls and doors of gas facilities","authors":"Young Jo Ryu, Yong Gil Lee, Dal Jae Park","doi":"10.1002/prs.12606","DOIUrl":"https://doi.org/10.1002/prs.12606","url":null,"abstract":"This study aims to provide experimental data necessary for the validation of the test conditions given in the current standard for high‐pressure gas facility KGS FU111. A series of experiments were conducted in a shock tube on 15 specimens (walls and doors) constructed according to the design recommendations in KGS FP112. The design elements of 12 walls are the materials, the thickness, and the holder positions, while the 3 doors were made of steel plates with different types and structures. The shock tube tester used in dividual specimens were exposed to blast overpressure of 0.11 or 0.17 MPa. From the acquired data and visual inspection, we conclude that the current designs of blast mitigation for high‐pressure gas‐storage facilities in KGS FP112 are acceptable for an accidental overpressure of up to 0.17 MPa, provided that both sides of the wall are supported by auxiliary structures such as adjacent barriers. Furthermore, the walls and doors as in KGS FP112 show comparable protection performances. Nevertheless, recommendations for doors are as follows: it may require additional latches and remain closed, and when designing the facility, the doorway may be located in a place with less possibility of direct exposure to the overpressure.","PeriodicalId":20680,"journal":{"name":"Process Safety Progress","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140628368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

An integrated system theoretic process analysis with multilevel flow modeling for the identification of cyber‐physical hazards in a process industry 综合系统理论流程分析与多级流程建模，用于识别流程工业中的网络物理危害

IF 1 4区工程技术

Process Safety Progress Pub Date : 2024-04-04 DOI: 10.1002/prs.12604

Feilong Zhang, Liangchao Chen, Bo Zhang, Jianwen Zhang, Qianlin Wang, Pengchao Wang, Jianfeng Yang, Zhan Dou

{"title":"An integrated system theoretic process analysis with multilevel flow modeling for the identification of cyber‐physical hazards in a process industry","authors":"Feilong Zhang, Liangchao Chen, Bo Zhang, Jianwen Zhang, Qianlin Wang, Pengchao Wang, Jianfeng Yang, Zhan Dou","doi":"10.1002/prs.12604","DOIUrl":"https://doi.org/10.1002/prs.12604","url":null,"abstract":"The deep integration of information technology and process industry production systems makes system failure increasingly multi‐source and multi‐scale. In contrast to conventional hazard methods, system theoretic process analysis (STPA) can analyze the hazards in system control processes from the perspective of interactions among the system components. Theoretically, this method offers advantages that are better suited for modern production systems. However, as of now, the integration between STPA and process industrial production systems is still lacking. To address this issue, this study improved the original STPA method. First, we propose the “5 flows” concept for the process industrial cyber‐physical systems. The systems are described using multilevel flow modeling (MFM). This leads to the development of the MSTPA method, which is specifically designed to analyze the cyber‐physical hazards in process industrial production systems. Subsequently, the cyber‐physical hazards of a fluidized‐bed catalytic cracking unit are analyzed in detail using the MSTPA method as an example. The results show that MSTPA can identify cyber‐physical hazards in multiple dimensions. It is proved that, compared with the original STPA and traditional hazard methods, the MSTPA method can better identify cyber‐physical hazards in process industrial production systems.","PeriodicalId":20680,"journal":{"name":"Process Safety Progress","volume":"39 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140564701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Dispersion evaluation of hydrogen sulfide inclusion in a cryogenic distillation pilot plant 低温蒸馏试验设备中硫化氢夹杂物的分散评估

IF 1 4区工程技术

Process Safety Progress Pub Date : 2024-04-02 DOI: 10.1002/prs.12597

Mohd Syazwan Mohd Shukor, Rozita Omar, Mohamad Rezi Abdul Hamid, Mohd Razif Harun, Mohamad Syazarudin Md Said

{"title":"Dispersion evaluation of hydrogen sulfide inclusion in a cryogenic distillation pilot plant","authors":"Mohd Syazwan Mohd Shukor, Rozita Omar, Mohamad Rezi Abdul Hamid, Mohd Razif Harun, Mohamad Syazarudin Md Said","doi":"10.1002/prs.12597","DOIUrl":"https://doi.org/10.1002/prs.12597","url":null,"abstract":"A risk analysis simulation was completed for a cryogenic distillation (Cryo‐D) pilot operation processing a natural gas feed stream containing H2S. This study placed significant H2S concentration inside the Cryo‐D and evaluated its dispersion after a simulated leak within the pilot plant. Sensitivity analysis using an in‐house process simulation identified the operating conditions that caused the highest surroundings H2S concentration. A computational fluid dynamic (CFD) dispersion simulation assessed H2S leakage at the bottom column section and its effects on operators. A case with 60 bar column pressure, −30°C inlet temperature and 10% H2S input gas had the highest mass flow rate of 4.74 kg/h H2S through a leak. Leaked H2S covers 50% of the building within 60 s. Within 120 s, H2S accumulates toward the column bottom. At 120 s, most operators are exposed to above 1000 ppm H2S, which may cause fatalities instantly. Recommendations include enhancing the ventilation of the building by installing ventilation near the base of the cryogenic column in order to lessen the exposure concentration. In conclusion, H2S leakage from an indoor Cryo‐D pilot plant can cause catastrophic consequences due to its rapid dispersion and accumulation throughout the building.","PeriodicalId":20680,"journal":{"name":"Process Safety Progress","volume":"9 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140564581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 pre-startup safety review implementation tool for safe operation in process plant 为工艺设备的安全运行开发启动前安全审查实施工具

IF 1 4区工程技术

Process Safety Progress Pub Date : 2024-03-29 DOI: 10.1002/prs.12602

Amiruddin Abu Bakar, Hanida Abdul Aziz

{"title":"Development of pre-startup safety review implementation tool for safe operation in process plant","authors":"Amiruddin Abu Bakar, Hanida Abdul Aziz","doi":"10.1002/prs.12602","DOIUrl":"https://doi.org/10.1002/prs.12602","url":null,"abstract":"A pre-startup safety review (PSSR) is a formal review of a chemical manufacturing process to verify that critical areas of the affected process have been assessed and addressed before using the process. It can be a new process or after modification to an existing process or operating conditions. There is concern about full implementation compliance, including designing the PSSR program, preparing the process to perform PSSR, following PSSR action items, and approving the PSSR report. This study aims to develop a PSSR Implementation Tool (PSSR-IT) via the Microsoft Excel platform. At the end of the self-assessment process, the end users were provided with the value of the percentage of compliance with PSSR requirements and a thorough review process prior to the start-up activities. A safety experts’ content validation index (CVI) was performed to ensure the tool's content was valid and sufficient for the PSSR process, followed by a case study. Feedback from process safety engineers and PSSR leaders as end users has been collected through the System Usability Scale (SUS). A total of 227 questions have been listed under 10 disciplines, including general info, operation, engineering, operational, process safety, health safety and environment (HSE), action log, final walk down, and approval that cover all essential aspects of review process prior to the start-up activities with CVI value of 0.98, k = 0.67. SUS findings demonstrated that all industrial experts and end users believe the tool is suitable and reliable, with a score >85%. Utilizing the PSSR tool will help the industries promote and improve the process safety program at the workplace.","PeriodicalId":20680,"journal":{"name":"Process Safety Progress","volume":"23 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2024-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140322916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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