H. Borgheipour, G. M. Tehrani, T. Eskandari, O. C. Mohammadieh, I. Mohammadfam
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Dynamic risk analysis of hydrogen gas leakage using Bow-tie technique and Bayesian network
The power plants of each country can be considered as one of the most important factors in economic development and growth of that country. Accidents at power plants are very dangerous and make their accessibility difficult. So, it is critical to be able to predict and appropriately assess the relevant risks. In this study, we focus on hydrogen gas leakage from chlorination unit as the study scenario to evaluate potential risk of accidents. We then use the Bow-tie technique and Bayesian Network analysis to determine the type and the relationship between the effective causes of the catastrophic accidents. According to Bayesian Network, decrease in flow rate in the ventilation system of the storage tank was identified as the most probable base event, and erupted fire/sudden fire/explosion were identified as the most probable consequences of occurrence of the top event. The use of Bayesian network could reduce parameter uncertainty through probability updating.
期刊介绍:
International Journal of Environmental Science and Technology (IJEST) is an international scholarly refereed research journal which aims to promote the theory and practice of environmental science and technology, innovation, engineering and management.
A broad outline of the journal''s scope includes: peer reviewed original research articles, case and technical reports, reviews and analyses papers, short communications and notes to the editor, in interdisciplinary information on the practice and status of research in environmental science and technology, both natural and man made.
The main aspects of research areas include, but are not exclusive to; environmental chemistry and biology, environments pollution control and abatement technology, transport and fate of pollutants in the environment, concentrations and dispersion of wastes in air, water, and soil, point and non-point sources pollution, heavy metals and organic compounds in the environment, atmospheric pollutants and trace gases, solid and hazardous waste management; soil biodegradation and bioremediation of contaminated sites; environmental impact assessment, industrial ecology, ecological and human risk assessment; improved energy management and auditing efficiency and environmental standards and criteria.