An approximate solution for the complete problem of attenuation of fire radiation by water mist is presented. This solution is based on simplified approaches for the spectral radiative properties of water droplets, the radiative transfer in the absorbing and scattering mist, and transient heat transfer taking into account partial evaporation of water mist. An analysis of the example problem makes it possible to recommend a decrease in the size of supplied water droplets with the distance from the irradiated surface of the mist layer. This can be achieved with the use of multilayered mist curtain. The advantage of this engineering solution is also confirmed by numerical calculations.ud
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机译:提出了解决水雾衰减火辐射的完整问题的近似解决方案。该解决方案基于简化的方法,这些方法包括水滴的光谱辐射特性,吸收和散射雾中的辐射传递以及考虑到部分水雾蒸发的瞬态热传递。对示例问题的分析使得可以建议随着距雾层的照射表面的距离的减小,所供应的水滴的尺寸减小。这可以通过使用多层雾幕来实现。此工程解决方案的优势也通过数值计算得到证实。 ud
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