Experimental Study on the Thermal Performance of Ventilation Wall with Cladding Panels in Hot and Humid Area

摘要

In this paper,we discussed the principle of thermal pressure ventilation,tested the ventilation wall in hot and humid region and obtained the hourly temperature on the outer wall surface and the calcium silicate board surface.The results showed that,on sunny days,plug-calcium silicate board surface temperature can be up t0 37 0C,while the exterior wall surface temperature can be up t0 31 0C,the surface temperature difference between the two walls is about 60C.But on cloudy day,the difference is about 2.3 0C.And during the night,it is about l.5 0C.Lower temperatures are found for the plug-calcium silicate board surface compared with exterior wall surface temperature.The delay and attenuation effect on outdoor temperature wave by ventilation wall is conspicuous.