爐壁の温度傳導度を實測する一方法

概要

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It is difficult to measure the heat transfer coefficient of the refractory materials. Many measuring methods have been described and some of them are as follows : - 1. Periodically repeated heat sources are used. 2. Thermal conductivity, specific gravity and specific heat capacity are separately measured. But we felt difficulties in applying these methods to actual furnaces, so the author introduced the method calculating the heat transfer coefficient approximately by a single heating cycle. If one face of a plate which expands infinitely in both sides is heated the heat will transfer to the other face. In this case if one heats the plane not continuously but with a definite interval and then stops heating, so the temperature wave will transfer to the other as impulse wave. The temperature of the other face is written approximately such as, θ_s=A_1 ε^<-α_1t>-A_2ε^<-α_2t> By measuring the temperature change concerning time, it is possible to calculate the mean value of heat transfer coefficient of the refractory materials.
社団法人日本鉄鋼協会の論文
1952-03-25