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Petri-net models for comprehensive hazard analysis of MOCVD processes
Computers & Chemical Engineering, 2011Reducing contamination level is of primary importance for the safety and efficiency of a MOCVD process. Off-line fault identification is one of the basic tasks that must be performed in hazard analysis to identify potential operational problems. For illustration convenience, the scope of present study is limited to the purge-gas purifier of the process.
Li-Ping Chung, Chuei-Tin Chang
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Hazard Identification and Failure Analysis in Grinding Process
Semarak International Journal of Mechanical Precision EngineeringThe grinding process is a material removal technique to shape and refine various materials. By using an abrasive wheel, flat or cylindrical surfaces can be shaped and often used as a finishing process in product making. However, the process has the potential to cause serious harm if handled inappropriately specifically with regards to the rotating ...
Norliana Mohd Abbas +3 more
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On the ability of process hazard analysis to identify accidents
Process Safety Progress, 2003AbstractProcess hazard analysis (PHA) has become the standard way of identifying possible accidents in processes. However, despite the large number of studies that have been performed since OSHA's Process Safety Management standard was issued in 1992, accidents still occur.
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The treatment of domino effects in process hazard analysis
Process Safety Progress, 2014Domino effects produce hazard scenarios that involve escalating consequences as a chain of linked events propagates throughout and beyond the process where they originate. Such scenarios have been the subject of accident survey studies and quantitative risk analyses but their identification in process hazard analysis (PHA) has received less attention ...
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Process hazard analysis for phases of operation in the process life cycle
Process Safety Progress, 2012AbstractProcesses experience various phases of operation during their life cycle. Hazard scenarios may occur during any of these phases, and they may vary by phase. Consequently, it is essential that process hazard analysis (PHA) studies address all phases of operation that a process may experience. Current PHA practices provide an inadequate treatment.
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Conducting process hazard analysis to facilitate layers of protection analysis
Process Safety Progress, 2012AbstractMany process hazard analyses (PHAs) provide insufficient detail to be able to perform layers of protection analysis (LOPA) studies properly using their results. LOPA teams experience difficulties, when PHA studies are performed without regard to the information needed for LOPA.
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Computer software for process hazards analysis.
Occupational health & safety (Waco, Tex.), 2001Computerized software tools are assuming major significance in conducting HAZOPs. This is because they have the potential to offer better online presentations and performance to HAZOP teams, as well as better documentation and downstream tracking. The chances of something being "missed" are greatly reduced.
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Reliability analysis for hazardous waste treatment processes.
Risk analysis : an official publication of the Society for Risk Analysis, 2000The reliability of a treatment process is addressed in terms of achieving a regulatory effluent concentration standard and the design safety factors associated with the treatment process. This methodology was then applied to two aqueous hazardous waste treatment processes: packed tower aeration and activated sludge (aerobic) biological treatment.
R D, Waters, F L, Parker
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Knowledge graph-based manufacturing process planning: A state-of-the-art review
Journal of Manufacturing Systems, 2023Jun Hong, Shuai Zheng
exaly