Highlights of LNG risk technology |
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Authors: | Robin M Pitblado John L Woodward |
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Institution: | aDNV, Houston, TX, USA;bBaker Engineering and Risk Consultants, Inc., San Antonio, TX 78218, USA |
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Abstract: | The authors have recently undertaken a major review of LNG consequence modeling, compiling a wide range of historical information with more recent experiments and modeling approaches in a book entitled “LNG Risk-Based Safety: Modeling and Consequence Analysis”. All the main consequence routes were reviewed – discharge, evaporation, pool and jet fire, vapor cloud explosions, rollover, and Rapid Phase Transitions (RPT’s). In the book, experimental data bases are assembled for tests on pool spread and evaporation, burn rates, dispersion, fire and radiation and effects on personnel and structures. The current paper presents selected highlights of interest: lessons learned from historical development and experience, comparison of predictions by various models, varying mechanisms for LNG spread of water, a modeling protocol to enable acceptance of newer models, and unresolved technical issues such as cascading failures, fire engulfment of a carrier, the circumstances for a possible LNG BLEVE, and accelerated evaporation by LNG penetration into water. |
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Keywords: | LNG Risk assessment Modeling LNG carrier accidents LNG pool evaporation Poolfire models |
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