Risk assessment of oxygen plant by HAZOP and What if in Besat hospital in Sanandaj
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2016, Vol 10, Issue 8
Abstract
Background and Objectives: Many events daily happen in workplaces that resulted in the death and injury. Such incidents are often caused because of the failure to identify potential hazards, assess and provide control solutions. Therefore, many events can be prevented by identifying potential hazards, assessing and providing control solutions. The aim of this study is the risk assessment of oxygen plant machines by HAZOP and What if methods in Sanandaj Besat hospital and comparison of these methods with each other and selection of superior technique. Methodology: In this study, the risks involved in oxygen generating machine were identified by using HAZOP method in 9 nodes and by what if method in 12 nodes. With regard to the protective system, number of risk was determined and number of secondary risk was obtained by providing control solutions. At the end, the data collected was analyzed by the two mentioned techniques. Findings: The results showed that 177 risks were in 12 nodes related to what if method (more than 80% risks) among the 220 risks identified that 9 risks (5%) tolerable, 123 risks (69.4%) with unsuitable conditions and 45 risks (25.4%) were intolerable, and 26.4% of risk control solution with high costs, 41.4% of risk control solution with average costs and 32.2% of risk control solution were with low costs. 43 risks were in 9 nodes related to HAZOP method (less than 20% risks) that 2 risks (4.6%) tolerable, 31 risks (72%) with unsuitable conditions and 10 risks (23.2%) were intolerable, and 39.2% of risk control solution with high costs, 40.5% of risk control solution with average costs and 20.3% of risk control solution were with low costs. Conclusion: Although the number of potential risks identified in what if method was more than the HAZOP method and more percentage of intolerable risks was controlled by what if method to the HAZOP method with low cost, and complexity, time and cost required for assessment with HAZOP method were more than the what if method, it is suggested that at least several methods to be used to identify risks, because identification and assessment of risks by a method is not sufficient.
Authors and Affiliations
Mostafa Mirzaei Aliabadi| Department of Occupational Health and Safety, Faculty of Health,Hamadan University of Medical Sciences, Iran, Iraj Mohammadfam| Department of Occupational Health and Safety, Faculty of Health,Hamadan University of Medical Sciences, Iran, Foad saiedi*| Department of Occupational Health and Safety, Faculty of Health,Hamadan University of Medical Sciences, Iran, email: Foad.saidi63@gmail.com
Keywords
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