期刊
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
卷 86, 期 B3, 页码 198-207出版社
INST CHEMICAL ENGINEERS
DOI: 10.1016/j.psep.2007.12.002
关键词
major accidents; transportation of dangerous; substances modelling of release and dispersion
The article reports the results of different methods of modelling releases and dispersion of dangerous gases or vapours in cases of major accidents from road and rail transportation in urban zones. Transport accidents of dangerous substances are increasingly frequent and can cause serious injuries in densely inhabited areas or pollution of the environment. For quantitative risk assessment and mitigation planning, consequence modelling is necessary. The modelling of dangerous substance dispersion by standard methods does not fully represent the behaviour of toxic or flammable clouds in obstructed areas such as street canyons. Therefore the predictions from common software packages as ALOHA, EFFECTS, TerEx should be augmented with computational fluid dynamics (CFD) models or physical modelling in aerodynamic tunnels, and further studies are planned to do this. The goal of this article is to present the results of the first approach of modelling using these standard methods and to demonstrate the importance of the next development stage in the area of transport accident modelling of releases and dispersions of dangerous substances in urban zones in cases of major accident or terrorist attacks. (c) 2008 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
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