Abstract The paper is focused on comparative computational modelling of the attenuation of fire radiation by water mists of pure water or sea water. The use of sea water in fire protection could be a more convenient and practical choice in coastal areas, on offshore installations or transported ships. The spectral absorption and scattering properties of both water droplets and salt particles formed by evaporation of sea water droplets are considered. A combined heat transfer problem is based on a combination of the spectral radiative transfer in a mist curtain, the kinetics of water evaporation, and convective heat transfer along the curtain. The developed computational model is used to analyze the radiative heating and evaporation of droplets of pure water and more complex multi-phase processes in droplets of sea water at all stages of the process. The numerical results for the case problem indicate sufficiently good shielding quality of a sea-water mist curtain. The suggested approach is expected to be useful for important engineering applications in fire protection.

中文翻译：

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含有纯水或海水液滴的雾幕对火灾热辐射屏蔽的比较分析

摘要 本文重点研究纯水或海水细水雾对火辐射衰减的比较计算模型。在沿海地区、海上设施或运输船舶上，使用海水进行消防可能是一种更方便、更实用的选择。考虑了由海水滴蒸发形成的水滴和盐颗粒的光谱吸收和散射特性。组合传热问题基于雾幕中的光谱辐射传递、水蒸发动力学和沿雾幕的对流传热的组合。开发的计算模型用于分析纯水液滴的辐射加热和蒸发，以及在过程各个阶段的海水液滴中更复杂的多相过程。案例问题的数值结果表明海水雾幕的屏蔽质量足够好。所建议的方法有望用于重要的防火工程应用。