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三、传热的测量这部分介绍煤气和炉壁传给负荷体热量的测量问题(即热流的测量),以及表示火焰辐射特性的重要参数——火焰全辐射黑度和局部衰减系数的测量问题。 (一)传给负荷体热量的测量传给负荷体的热量(千卡/米~2·时)可以用热流计来测量。热流计的用途很多。例如,利用它所测得的结果,可以校验传热公式的适用范围,可以作为设计新炉子的参考,还可以将测量的热流当作自动控制的基本参数,等等。在介绍热流计之前,先简要地叙述一下负荷体单位表面和火焰与炉壁之间的热平衡方程
Third, the measurement of heat transfer This section describes the gas and furnace wall heat transfer to the body load measurement problems (ie, heat flow measurement), as well as the important parameters that represent the radiation characteristics of the flame - the measurement of full radiation blackness and local attenuation coefficient . (A) of the heat transmitted to the load measurement Body heat load (kcal / m ~ 2 ·) can be used to measure the heat flow meter. Use a lot of heat flow meter. For example, using the results of its measurements, you can verify the applicability of heat transfer formulas as a reference for designing new furnaces, using measured heat flow as a basic parameter for automatic control, and so on. Before introducing the heat flow meter, briefly describe the unit surface of the load body and the heat balance equation between the flame and the furnace wall