Courtyard buildings embraced as a passive design paradigm, find wide application in modulating outdoor climatic conditions
and fostering energy efficiency. Consequently, exploring passive strategies to mitigate the repercussions of climate change
becomes a compelling priority. However, previous studies have predominantly emphasized the daytime performance of
traditional courtyards in hot climates, often overlooking their performance throughout the entire day. This oversight includes
the impact of courtyards in releasing stored heat into the air during nighttime, commonly referred to as "the reversed impact
of the courtyard." This study evaluates the reversed thermal impact of glazed “modernized” courtyard envelope during
nighttime and day-exposed radiation. This analysis considers the complex interaction between incoming and outgoing
radiation flows. The study employed a combined approach involving onsite measurements and numerical simulations centered
upon an educational building within a hot-arid zone. The scope of the study encompasses diverse courtyard geometries and
various mitigation strategies, all characterized by heightened proportions of glazed surface areas. The results, depending
on prevailing weather conditions, reveal the potential for these factors to reduce heating time from 17 h to just 2 h at the
optimum. In contrast, there is an increase in cooling impact, ranging from 7 to 22 h throughout both day and night, with
scenarios representing the least and most favorable cases, respectively. For designing processes, optimizing aspect ratio
without exceeding 1.6 and glazed façade orientation is essential to control multi-reflection at the modernized courtyard
envelope criteria. |
