借助风洞试验台控制实现多种温湿度气候条件,分别研究50、100、150mm三种深度的蓄水屋面及具有0、5%、10%水面反射物覆盖率的蓄水屋面在不同工况条件下的被动蒸发换热状况,通过热湿特性参数的分析探讨两者的气候适用性。结果显示:低温中湿(25℃、60%)和中温低湿(30℃、40%)环境下,100mm深蓄水池具有较强适用性;低温高湿(25℃,80%)和中温中湿(30℃,60%)环境下,蓄水深度与蒸发降温效果关联性较弱。水面设置反射物在低温(25℃)和高温(35℃)环境均有助于降低空调负荷,且高温时较大覆盖率效果更显著。
With wind tunnel laboratory control to achieve various temperature and humidity conditions,three kinds of roof reservoir deep about 50,100,150 mm and water surface reflector coverage about 0,5%,10% of roof reservoir were studied respectively. The climate applicability of both was discussed by analyzing the thermal and moisture parameters. Results showed that under the environment of low temperature moderate humidity(25℃-60%) and moderate temperature low humidity(30℃,40%), 100 mm deep reservoir has strong applicability;And in low temperature high humidity (80%) and moderate temperature and humidity environment (30 ℃, 60%),water depth and evaporation cooling effect correlation was weak. On the other hand, set water surface reflector in both low temperature(25 ℃) and high temperature (35 ℃) environment are all helpful to reduce air conditioning load, and larger coverage has more significant influence on high temperature condition.