The Impact of Internal Courtyard Configuration on Thermal Performance of Long Strip Houses

A courtyard is an essential space for natural lighting and natural convective ventilation of residential buildings in hot-humid climates. This study focuses on the internal courtyard configuration on the thermal performance of long strip houses (LSH) in the hot-climate area of Hainan Island, China. The aim is to identify the best design parameters for the courtyard to improve thermal comfort in modern LSH design. Appropriate strategies, including Mahoney table, field investigation, and CFD simulation, are used to determine thermal performance. As a result, the design guidelines of the courtyard are proposed to optimize the thermal comfort towards energy saving. The study reveals the spatial characteristics and climate regulation of internal courtyards in traditional LSH. In addition, the simulation results show that the enclosure with a shaded cover and a high ratio of H/D is conducive to thermal environment and ventilation, and the section of contracted shape from bottom to top is a preferred option in the internal courtyard configuration. This study should, therefore, be of value in designing practical projects with an interior courtyard for architects.

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