摘要
为了解决某地下景观观赏玻璃内表面的结露问题,本文设计了1个通风除湿系统,由风机引入环境空气,并及时排除内部的湿负荷,防止玻璃内表面产生结露现象。应用CFD软件对该通风除湿设计进行了气流组织模拟,结果表明在设计工况下,通风30 min后,玻璃下方空气的相对湿度明显降低;通风2 h后,内部湿度场接近稳定状态,整个空间内湿度均比较低,内部空气的露点温度比玻璃内表面温度低4℃,说明该通风设计可以很好地防止结露现象的产生。
In this paper,in order to solve the condensation problem on the inner glass surface of an underground landscape,a ventilation dehumidification system was designed.In this system,the outdoor air was introduced by the fan,and the internal latent load was removed in time to avoid the condensation.Furthermore,the software of CFD was used to simulate the airflow distribution,the results indicated that under the design conditions,the air relative humidity below the glass was decreased obviously after ventilation for 30 min,and after 2 h,the indoor air relative humidity was close to a steady state,the dew-point of indoor air was 4 ℃ lower than that of the glass surface.Based on the discussion,it was known that this ventilation system could prevent the condensation effectively.
出处
《建筑科学》
北大核心
2011年第4期66-69,共4页
Building Science
关键词
地下景观
结露
通风除湿
underground landscape
condensation
ventilation dehumidification
