建筑采光中庭喷雾降温热环境测试与分析

Test and Analysis of Thermal Environment of Building Lighting Atrium Spray Cooling

在广州某建筑采光中庭玻璃顶上建立了喷雾降温系统,系统在玻璃表面形成的雾层的遮阳效果及降温效果的效果进行了测试,并对中庭内部的热环境进行了测试.在试验测试条件下,雾层的遮阳效果可以使太阳辐射透过率降低9.0%~12.3%,可以使玻璃下表面温度降低10.7~11.0℃,系统对于室内热环境的影响不大,但能使整体舒适性提高.

A spray cooling system was built on the top of a lighting atrium glass in Guangzhou.The shading effect of the fog layer formed on the glass surface and the effect of the cooling effect were tested,and the thermal environment inside the atrium was tested.Under the test conditions,the sunshade effect of the fog layer can reduce the solar radiation transmittance by 9%~12.3%,which can reduce the temperature of the lower surface of the glass by 10.7~11.0℃.The system has little effect on the indoor thermal environment,but it can improve the overall comfort.