LNG accident dynamic simulation: Application for hazardous consequence reduction
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The definition of hazard area, centered inside 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 main LNG hazards, LNG flammable vapor dispersion and LNG pool fire radiation, to determine the hazard exclusion area. The spatial and temporal distribution of hazard in complex spill scenario has been considered in CFD model. With the developed CFD code, the spray water curtains were studied as a shield to prevent LNG vapor dispersing. Two types of water spray curtain, flat curtain 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 also studied with dynamic simulation of the foam action. 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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Sun, Biao; Guo, K. (2013)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 ...
Sun, Biao; Guo, K. (2013)In an LNG terminal, water spray curtain, as one of the most important mitigation methods, is applied to eliminate the hazard of LNG vapor cloud dispersion for safety concern. However, little attention has ever been paid ...
Sun, Biao; Guo, K.; Pareek, V. (2015)Because of its highly flammable nature, any accidental release of liquefied natural gas (LNG) could possibly pose significant fire hazard. In this study, a computational fluid dynamics (CFD) model was used to analyze this ...