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Hazard analysis on LPG fireball of road tanker BLEVE based on CFD simulation
Journal of Loss Prevention in the Process Industries ( IF 3.5 ) Pub Date : 2020-10-08 , DOI: 10.1016/j.jlp.2020.104319
Yuanyuan Wang , Xiaochen Gu , Li Xia , Yong Pan , Yuqing Ni , Supan Wang , Wei Zhou

In order to research the hydrocarbon fireball characteristic of LPG tanker Boiled Liquid Evaporate Vapor Explosion (BLEVE) under different conditions, computational fluid dynamics (CFD) simulations of the hydrocarbon fireballs from the LPG tanker BLEVE accidents were carried out. Several new different factors, such as the mass of fuel, inlet velocity and airflow velocity, were considered to analyze the influence on the evolution of the characteristics of the fireball and the development of the LPG tanker BLEVE accidents. Results indicate that the fireball with a greater mass of fuel radiates more heat but slower. The large longitudinal diameter of the fireball and high radiation heat flux are observed in case of a faster inlet velocity used for the same mass. The airflow was found to shorten the initial phase of the fireball effectively. Some suggestions were proposed to prevent the LPG BLEVE accidents. Analysis performed show that various parameters like fireball diameter, radiative heat flux and lifting speed of fireball can be predicted well using FDS code.



中文翻译:

基于CFD仿真的公路油轮BLEVE液化气火球危害分析。

为了研究液化石油气船在不同条件下的沸腾液体蒸发蒸气爆炸(BLEVE)的烃类火球特性,对液化石油气船BLEVE事故中的烃类火球进行了计算流体动力学(CFD)模拟。考虑了几个新的不同因素,例如燃料质量,进气速度和气流速度,以分析对火球特征演变和液化石油气加油机BLEVE事故发展的影响。结果表明,燃料量较大的火球辐射的热量更多,但速度更慢。在相同质量使用更快的入口速度的情况下,观察到火球的大纵向直径和高辐射热通量。发现气流有效地缩短了火球的初始阶段。为防止液化石油气BLEVE事故提出了一些建议。分析表明,使用FDS代码可以很好地预测火球直径,辐射热通量和火球升起速度等各种参数。

更新日期:2020-10-11
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