建筑立面在室内主动湿度控制中的应用

Q4 Energy
K. Ghali, J. P. Harrouz, N. Ghaddar
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引用次数: 0

摘要

将室内湿度调节到健康范围对于为居住者提供可接受的热舒适和空气质量条件非常重要。传统的技术依靠室外除湿空气的供应来稀释室内产生的水分。它们使用蒸汽压缩冷却作为独立系统或与干燥剂除湿器集成以产生干燥空气。这种系统是能源密集型的,需要很大的占地面积,特别是在炎热潮湿的气候下。因此,这项工作提出了一种节能的替代方案,室内湿度直接从空间泵送并排放到室外。该系统集成了基于金属有机框架的除湿机和建筑透气立面。除湿机干燥用于通风的室外空气,并为水分转移创造必要的驱动梯度,而不管室外空气条件如何。开发了数学模型来评估位于沙特阿拉伯吉达极端湿热气候的办公空间的系统性能。与传统系统相比,该系统在湿度高峰月份的系统尺寸和能耗分别减少了89%和90%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Use of Building Façade for Active Indoor Humidity Control
Regulating indoor humidity levels to healthy ranges is important to provide occupants with acceptable thermal comfort and air quality conditions. Conventional techniques relied on the supply of dehumidified outdoor air to dilute the indoor generated moisture. They use vapor compression cooling either as standalone system or integrated with desiccant dehumidifiers to generate the dry air. Such systems are energy intensive and require large footprint areas, especially in hot and humid climates. This work proposes thus an energy-efficient alternative where the indoor humidity is pumped directly from the space and discharged outdoors. This system integrates a metal organic framework-based dehumidifier with the building breathable façade. The dehumidifier dries the outdoor air that is used to ventilate the façade and create the necessary driving gradient for the moisture transfer, irrespective of the outdoor air conditions. Mathematical models are developed to evaluate the system performance for an office space located in the extreme hot and humid climate of Jeddah, KSA. The proposed system resulted in 89 % and 90 % reduction in the system size and energy consumption compared to conventional systems over the peak humidity month.
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来源期刊
Renewable Energy and Power Quality Journal
Renewable Energy and Power Quality Journal Energy-Energy Engineering and Power Technology
CiteScore
0.70
自引率
0.00%
发文量
147
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