Simulation and application of a disaster spread model in Chemical Disaster Network |
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Institution: | 1. National Center for Environmental Health, Centers for Disease Control and Prevention, 4770 Buford Highway, Northeast, MS-F59, Atlanta, GA 30341-3717, USA;2. Department of Emergency Medicine, Emory University, 531 Asbury Cir-Annex, Suite N-340, Atlanta, GA 30322, USA;3. Los Alamos National Laboratory, Mailstop G761, Los Alamos, NM 87545, USA;4. Radiation Emergency Assistance Center/Training Site, PO Box 117, Oak Ridge TN 37831, USA;1. Mary Kay O''Connor Process Safety Center, Artie McFerrin Department of Chemical Engineering Department, Texas A&M University System, College Station, TX 77843-3122, USA;2. Mary Kay O''Connor Process Safety Center – Qatar, Texas A&M University at Qatar, PO Box 23874, Education City, Doha, Qatar;1. Department of Mathematics and Computer Science, University of Ferrara, Ferrara, Italy;2. Université de Toulouse, UPS, INSA, UT1, UTM, CNRS, UMR 5219, Institut de Mathématiques de Toulouse, F-31062 Toulouse, France |
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Abstract: | In the research field of chemical safety, the computer-aided simulation for occurrence and process of disasters has become a major trend in current research, in which the establishment of evolution system for chemical multi disasters is the key point. In the paper, the study lays emphasis on the simulation and application of a spread model for chemical multi disasters. After establishing a disaster network, we defined microcosmic elements of spread model specifically. Combined with guideline of chemical disaster (e.g. guideline of heat flux for damages or injure, guideline of evaluation for buildings based explosion and overpressure, and guideline of evaluation for human exposure to toxic gases), the weight of impact can be computed using new comprehensive algorithms. Simultaneously, the paper also uses an approach on simulating multiple failure events to describe random factors of triggering disasters. At last, the experimental case of alkyl aluminum leakage in a polypropylene plant shows the result of simulation with table of 5 major series of disasters and distribution diagram of nodes (disasters) in disaster network. This proves the validity and practicability of the simulation system in the establishment and feedback of contingency plan of large-scale petrochemical enterprises. |
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Keywords: | Modeling and application Complex disaster network Disaster spread dynamics Chemical disaster simulation |
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