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本文提出应用低温风洞进行大型太阳能集热器对流换热实验研究，讨论了现有太阳能集热器对流传热公式缺点及常规实验手段模拟大型太阳能集热器对流换热的困难，研究了Ｒｅ数、Ｇｒ数随温度变化关系，指出低温风洞可有效应用于大型太阳能集热器实验模拟，最后分析了低温风洞用于对流传热研究的特点，讨论了低温风洞典型流程，并对建造和运行低温传热风洞的一些主要问题浅谈了初步看法。
In this paper, convection heat transfer experiment of large-scale solar collectors using low-temperature wind tunnel is presented. The disadvantages of convection heat transfer of conventional solar collectors and convection heat transfer of large-scale solar collectors by conventional experimental methods are discussed. Re The results show that the low-temperature wind tunnel can be effectively applied to the experimental simulation of large-scale solar collectors. Finally, the characteristics of low-temperature wind tunnel for convective heat transfer are analyzed. The typical flow of low-temperature wind tunnel is discussed. Some preliminary questions about some major problems in constructing and operating low temperature heat transfer wind tunnel are discussed.