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对实验房间南向墙体内表面中心区域的换热过程进行实验 ,发现当风速在 0～ 5 .5m/s之间时 ,表面传热系数在 8～ 1 8W/(m2 ·K)之间波动 ,而风向对墙体表面传热系数影响不大 ;用辅助变量法分析墙体表面传热过程 ,并结合实验推导出墙体表面传热系数。模型的预测结果与实测结果吻合良好。
Experiments on the heat transfer process in the center of the inner wall of the wall to the south of the experiment room showed that the surface heat transfer coefficient was between 8 ~ 18W / (m2 · K) when the wind speed was between 0 ~ 5.5m / s While the wind direction has little effect on the heat transfer coefficient of the wall surface. The heat transfer process of the wall surface is analyzed by using the auxiliary variable method, and the heat transfer coefficient of the wall surface is deduced by experiments. The model predictions agree well with the measured results.