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http://dx.doi.org/10.7842/kigas.2018.22.6.136

Cellular Automata Simulation System for Emergency Response to the Dispersion of Accidental Chemical Releases  

Shin, Insup Paul (Korea International School, Seongnam)
Kim, Chang Won (Department of Chemical Engineering, Myongji University)
Kwak, Dongho (Department of Chemical Engineering, Myongji University)
Yoon, En Sup (Engineering Development Research Center, Seoul National University)
Kim, Tae-Ok (Department of Chemical Engineering, Myongji University)
Publication Information
Journal of the Korean Institute of Gas / v.22, no.6, 2018 , pp. 136-143 More about this Journal
Abstract
Cellular automata have been applied to simulations in many fields such as astrophysics, social phenomena, fire spread, and evacuation. Using cellular automata, this study develops a model for consequence analysis of the dispersion of hazardous chemicals, which is required for risk assessments of and emergency responses for frequent chemical accidents. Unlike in cases of detailed plant safety design, real-time accident responses require fast and iterative calculations to reduce the uncertainty of the distribution of damage within the affected area. EPA ALOHA and KORA of National Institute of Chemical Safety have been popular choices for these analyses. However, this study proposes an initiative to supplement the model and code continuously and is different in its development of free software, specialized for small and medium enterprises. Compared to the full-scale computational fluid dynamics (CFD), which requires large amounts of computation time, the relative accuracy loss is compromised, and the convenience of the general user is improved. Using Python open-source libraries as well as meteorological information linkage, it is made possible to expand and update the functions continuously. Users can easily obtain the results by simply inputting the layout of the plant and the materials used. Accuracy is verified against full-scale CFD simulations, and it will be distributed as open source software, supporting GPU-accelerated computing for fast computation.
Keywords
cellular automata; gas dispersion; chemical accident; open source simulation software;
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Times Cited By KSCI : 1  (Citation Analysis)
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