CFD Modeling for Mitigation of Heavy Toxic Gas Release

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Miri Ramsheh, Saeed | 2014

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 45523 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Rashtchian, Davoud
Abstract:
The release of toxic materials causes tragic accidents every year. There are various techniques in order to mitigate the release effect of these materials such as Application of air jets, steam curtains and water curtains. In this study first, previous works are reviewed in order to select the best technique for the mitigation of heavy toxic gas release. Then CFD modeling is used to simulate this technique.
A field situation in which chlorine gas was released upwind of water spray was simulated using the open-source software FDS (Fire Dynamic Simulator), a CFD model. Only mechanical effects of water sprays are considered; hence the effect of absorbtion is neglected. Finally tha influence of various parameters such as wind speed, water/gas ratio, initial velocity of spray droplets and mean diameter of spray droplets are on the performance of water sprays are studied.
Keywords:
Scattering ; Modeling ; Computational Fluid Dynamics (CFD) ; Chlorine ; Toxic Dispersion ; Release Mitigation

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