Abstract

A method is proposed to model the radiant heat exchange in heating units. Studies are performed on a fire stand and an experimental installation to determine the amount of heat transferred to the heated medium in tubular furnaces and radiation recuperators after the deposition of high-emissivity-factor coatings onto heat-absorbing surfaces. After coating deposition, the heat absorption by the medium to be heated in tubular furnaces is shown to increase by 16–17% and that in radiation recuperators, by 20% at temperatures of 300–600°C.

中文翻译：

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当在吸热表面上使用高辐射系数涂层时，加热装置中的热交换

摘要

提出了一种方法来模拟加热单元中的辐射热交换。研究是在一个火架和一个实验装置上进行的，以确定在将高辐射系数涂层沉积到吸热表面后传递到管式炉和辐射换热器中加热介质的热量。涂层沉积后，在管式炉中加热介质的吸热量增加了 16-17%，在 300-600°C 的温度下，辐射换热器的吸热量增加了 20%。