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本文分析了热网管道围护表面比辐射率的大小对传热状态及热损失的影响,并作了实验观测。根据红外测温的特点,提出了用“等效温度法”测量金属围护表面比辐射率的方法。
In this paper, the effect of the ratio of emissivity to the heat transfer and the heat loss on the surface of the heat pipe is analyzed and the experimental observations are made. According to the characteristics of infrared temperature measurement, a method of measuring specific emissivity of metal enclosure surface by “equivalent temperature method” is proposed.