飘窗是香港高层住宅建筑中一种常见的形式(图1),但是它的环保性能和可能引入过多太阳热增量的潜在问题仍需仔细审视。飘窗是一种有体积感的三维开窗形式,它为室内外空间的转换提供了一个平缓的过渡地带(Reichel,A.,2009)。飘窗为狭小的房间或公寓创造出可贵的扩展空间,这对香港逼仄的城市环境中高层住宅建筑形态来说尤为重要。本研究旨在量化飘窗在高层住宅建筑中独特的物理和环境特性,同时对过度太阳辐射 Bay window is a common form of high-rise residential buildings in Hong Kong (Figure 1), but its environmental performance and the potential problems that may lead to excessive solar heat increment still need to be carefully examined. Bay window is a volumetric three-dimensional window opening that provides a gentle transition zone for indoor and outdoor space conversion (Reichel, A., 2009). Floating windows create valuable expansion spaces for small rooms or apartments, which is particularly important for the high-rise residential building in Hong Kong’s cramped urban setting. The purpose of this study is to quantify the unique physical and environmental properties of bay windows in high-rise residential buildings,