建筑围护结构
水分
通风(建筑)
湿度
环境科学
气流
空气流速
相对湿度
包络线(雷达)
传热
室内空气
气象学
含水量
材料科学
复合材料
机械
环境工程
热的
机械工程
岩土工程
工程类
航空航天工程
物理
雷达
作者
Xueqiong He,Feng Chi,Huibo Zhang
标识
DOI:10.1016/j.enbenv.2022.08.003
摘要
The moisture performance of building envelopes largely depends on the building materials, construction techniques, and exposure loads from the indoor and outdoor regions. A ventilated air interlayer placed in a wall can help dehumidify the wall and indoor air. This paper presents an experimental study of the heat, air, and moisture variations within the envelope wall of a chamber featuring different air interlayer settings under real outdoor air conditions during the summer of 2020 in Shanghai, China. Self-developed humidity-controlling building materials were applied to the inner building envelope. Temperature, humidity, wind velocity, and heat-flow sensors were placed at different positions in the middle of the wall. These parameters were measured and recorded in real-time under three working conditions: humidification, dehumidification, and ventilation. The experimental results show that under the ventilation working conditions, moisture content of 0.52 kg can be removed after a 2-h air layer ventilation, which can benefit the design strategy for the humidification and ventilation of dehumidification walls.
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