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    LNG accident dynamic simulation: Application for hazardous consequence reduction

    Access Status
    Fulltext not available
    Authors
    Sun, Biao
    Guo, K.
    Date
    2013
    Type
    Journal Article
    
    Metadata
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    Citation
    Sun, B. and Guo, K. 2013. LNG accident dynamic simulation: Application for hazardous consequence reduction. Journal of Loss Prevention in the Process Industries. 26 (6): pp. 1246-1256.
    Source Title
    Journal of Loss Prevention in the Process Industries
    DOI
    10.1016/j.jlp.2013.06.005
    ISSN
    0950-4230
    School
    Department of Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/13151
    Collection
    • Curtin Research Publications
    Abstract

    The evaluation of exclusion (hazard) zones around the LNG stations is essential for risk assessment in LNG industry. In this study, computational fluid dynamics (CFD) simulations have been conducted for the two potential hazards, LNG flammable vapor dispersion and LNG pool fire radiation, respectively, to evaluate the exclusion zones. The spatial and temporal distribution of hazard in complex spill scenario has been taken into account in the CFD model. Experimental data from Falcon and Montoir field tests have been used to validate the simulation results. With the valid CFD model, the mitigation of the vapor dispersion with spray water curtains and the pool fire with high expansion foam were investigated. The spray water curtains were studied as a shield to prevent LNG vapor dispersing, and two types of water spray curtain, flat and cone, were analyzed to show their performance for reduction and minimization of the hazard influencing distance and area. The high expansion foam firefighting process was studied with dynamic simulation of the foam action, and the characteristics of the foam action on the reduction of LNG vaporization rate, vapor cloud and flame size as well as the thermal radiation hazard were analyzed and discussed.

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