Numerical Analysis of Tsunami-Triggered Oil Spill Fires from Petrochemical Industrial Complexes in Osaka Bay, Japan, for Thermal Radiation Hazard Assessment
Numerical Analysis of Tsunami-Triggered Oil Spill Fires from Petrochemical Industrial Complexes in Osaka Bay, Japan, for Thermal Radiation Hazard Assessment
复制标题
日本大阪湾石化工业园区海啸引发的溢油火灾数值分析，用于热辐射危害评估
DOI：
10.1016/j.ijdrr.2019.101352
复制
发表时间：
2020
影响因子：
5
通讯作者：
Y.
中科院分区：
文献类型：
--
作者：
Nishino;T.;Takagi;Y.
本研究评估了日本石化工业园区海啸引发的溢油火灾的热辐射危害，并表明评估提供了有用的结果，了解多大的面积将暴露于高热辐射，以及海啸垂直疏散建筑物将处于火灾的危险之中。海啸引发的石油泄漏火灾蔓延模型适用于大坂港，其中有大约360公顷的石化工业综合体。研究了南海海槽俯冲带沿着假定8.6级地震后的海啸。通过改变初始点火位置和时间，对海啸造成的石油泄漏和石油上的火灾蔓延进行了数值模拟。制作了代表火灾最大辐射热通量空间分布的危险图。计算表明，在最坏的情况下，一个海啸垂直疏散建筑物暴露在40千瓦/平方米或更高的辐射热通量。因此，这座建筑物很可能被大火点燃，建议尽可能少地使用这座建筑物进行海啸垂直疏散。此外，十个海啸垂直疏散建筑，这是不太可能被点燃，将在几种情况下，暴露于辐射热通量超过最低热通量，导致人体皮肤烧伤。因此，当这些楼宇的天台用作避护区时，便须采取措施，例如在天台加设护墙，以遮挡这些地方的热辐射。
This study assesses thermal radiation hazards from tsunami-triggered oil spill fires from petrochemical industrial complexes in Japan, and demonstrates that the assessment provides useful results for understanding how large an area will be exposed to high thermal radiation, and which tsunami vertical evacuation buildings will be in danger from the fires. A tsunami-triggered oil spill fire spread model was applied for the Port of Osaka, which has approximately 360 ha of petrochemical industrial complexes. A tsunami following a hypothetical magnitude 8.6 earthquake along the Nankai Trough subduction zone was considered. Oil spills caused by the tsunami and fire spread over oil were numerically simulated for several scenarios by varying the initial ignition location and time. Hazard maps representing the spatial distribution of maximum radiant heat flux from the fires were created. The calculations showed that one tsunami vertical evacuation building was exposed to a radiant heat flux of 40 kW/m2or more in the worst-case scenario. Therefore, this building is likely to be ignited by the fires, and it is recommended that this building be used as little as possible for tsunami vertical evacuation. In addition, ten tsunami vertical evacuation buildings, which are not likely to be ignited, would, in several scenarios, be exposed to a radiant heat flux that exceeds the minimum heat flux that causes human skin burns. Therefore, when rooftops of these buildings are used for refuge areas, measures for shielding these areas from thermal radiation need to be implemented, such as mounting parapet walls on rooftops.