Exploring The Application of Atmospheric Water Harvesting Techniques in Enhancing the Building's Performance Through the Building Envelope: A Systematic Review

ABSTRACT Atmospheric water harvesting (AWH) techniques are evolving technologies that extract water from ambient air. These techniques have been utilized because of their potential in various engineering fields, especially building envelopes. Despite their potential, integrating AWHs into building envelopes remains a novel area that requires further investigation for practical applications within buildings. The lack of visibility and precise classification of AWH applications within building envelopes motivated a review of articles published since 2010, focusing on integrated AWH techniques within building envelopes and discovering their prevalent applications used in buildings to provide a clear categorization of these applications for future envelope development. For this purpose, this research conducted a systematic literature review, employing the Preferred Reporting Items for Systematic Reviews and Meta‐Analyses (PRISMA) protocol, of the main AWH technologies implemented in building envelopes. It evaluates the practical applications of AWHs by identifying the reasons for incorporating such techniques within the envelopes. The findings indicate existing technologies have primarily been employed to provide dehumidification for various purposes, enhance the building's energy performance by regulating relative humidity, and use harvested water for surface evaporation. Additionally, AWH applications through envelopes have been expanded to serve as sustainable water supplies as a key area of focus.