Experimental study on rains effect on heat transfer of walls in Guangzhou

Builds an experimental system,and measures the temperature field, moisture field and the distribution of the heat flux to study the heat transfer of the walls in rainy and sunny days. The results show that the rainfall and the solar radiation are the most important factors to impact the heat transfer of the walls. The rain could cool the surface of the walls well, with the potential application of the rain evaporative cooling to buildings in Guangzhou.