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Analysis of the geometric and radiative characteristics of hydrocarbon pool fires

机译：碳氢化合物库火的几何和辐射特征分析

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The radiation intensity at a given distance depends mainly on the radiative power and the flame's size and shape. Considerable literature describing both experimental and theoretical studies of thermal radiation from flames is available. Even so, predicting the radiant power of large flames is still subject to considerable uncertainty, because some parameters associated with large turbulent diffusion flames cannot be determined accurately for a given fire. A series of outdoor large pool-fire experiments were performed using gasoline and diesel fuels lying above a layer of water. Five concentric circular pools made of reinforced concrete (1.5, 3, 4, 5, and 6 m in diameter) were used. The experiments were filmed with at least two video cameras registering visible light (VHS) and a thermographic camera (IR). In this study, thermographic images were used to determine the flames' distribution of emissive power, the mean emissive power, and the flame's irradiance. The contribution of each part of the flame to the total radiated energy was analyzed. A method is presented combining the IR images and the visible images; it offers further insight into the relationship between the heat emitted by the luminous part and the obscured, nonluminous, part of the flame.
机译：给定距离的辐射强度主要取决于辐射功率以及火焰的大小和形状。已有大量文献描述了火焰热辐射的实验和理论研究。即便如此，预测大火焰的辐射功率仍然存在相当大的不确定性，因为与大湍流扩散火焰相关的某些参数对于给定的火灾无法准确确定。使用躺在水层上方的汽油和柴油进行了一系列室外大型水池射击实验。使用了五个由钢筋混凝土制成的同心圆形水池（直径分别为1.5、3、4、5和6 m）。用至少两个记录可见光（VHS）的摄像机和热像仪（IR）拍摄实验。在这项研究中，热成像图像用于确定火焰的发射功率分布，平均发射功率和火焰的辐照度。分析了火焰各部分对总辐射能的贡献。提出了一种结合红外图像和可见光图像的方法。它进一步了解了发光部分散发的热量与火焰遮盖的非发光部分之间的关​​系。

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