الفهرس 
Sustainable BuildingsOnly 14 pages are availabe for public view
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Abstract
Sustainable buildings have recently become a global priority. In hot climates, meeting the cooling demand in the sustainable buildings is challenging. To meet this demand in office buildings during summer, the study proposed a holistic configuration of applying passive solar design strategies (PSDSs), and then integrating an active solar cooling technology (ASCT) into the facade. Three hot climates, namely, humid subtropical, hot semi-arid, and hot desert, were investigated in Egypt using a building energy model. First, four PSDSs, window-to-wall ratio (WWR), glazing type, shading devices, and wall material were sequentially applied to the facade. Secondly, an absorption chiller driven by a solar thermal collector (STC) was integrated into this passively designed façade. The best tilt angle, area, and dimensions of STC were specified for the main façade orientations. Then, this study provided design guidelines for integrating ASCT into passively designed façade of office buildings in hot climates. Finally, these guidelines were applied to a case study office room in a hot, semi-arid climate zone (Ismailia, Egypt). The results reveal that the passively designed facade reduces the cooling demand by 43.5% to 65.7%. The sloped STC at a tilt angle of 30° is the most efficient option for all orientations except the north where the horizontal STC is considered the best. In the case of the vertical STC, the ASCT is unable to meet the cooling demands. The results of the proposed configuration for the case study agreed well with the guidelines estimated in the same climate zone. Additionally, the integrated ASCT successfully met the cooling demand of the room during the summer season.