排屋是越南新興及古老城市普遍的房屋形式。基於其建築排列式的特色,室內環境如通風設備和採光都比其他形式房屋來得差。此外,越南南部城市受熱帶氣候及環境污染影響,也缺乏永續設計的概念,導致所需的冷卻成本增加,尤其在夏天,更是如此。近年來,被動式設計被視為可以有效的以最少能源進行冷卻達到最大舒適感的方式。此研究過程採用四個步驟包括:基本理論回顧;實況分析;個案研究;及設計原則的呈現。也特別說明從傳統排屋及被動式冷卻系統之經驗,及其與當地氣候的關係。最後,此研究也介紹三種被動式冷卻設計原則,包括:1.隔熱設計;2.自然通風設計,3.自然採光設計。此研究證明了應用被動式設計原則可以更有效的利用陽光和風來改善排屋的室內環境。
Row-house is a popular housing form which is located all over old and new parts of Vietnamese cities. Because of its form characteristics, indoor environmental conditions of row-house are poorer than other housing types in terms of natural ventilation and lighting. In addition, Vietnamese southern cities which are influenced by the tropical climate, environment pollutions, and the lack of building sustainable principles are major causes of increasing energy cost for cooling especially during summers. In recent years, passive design principles have been becoming one of the most efficient solutions for cooling with a maximized comfort while minimizing energy use. The research process is based on four steps including: basic theory review; real situation analysis; case-studies selection; and design principles presentation. In particular, experiential lessons from the traditional row-house and passive cooling have been taken into consideration together with climatic features. Finally, passive cooling principles are introduced based on three elements such as: 1. Thermal insulation design; 2. Natural ventilation design; and 3. Natural lighting design. The research has proved that with passive cooling principles, natural elements such as the sun and the wind can be better utilized in order to improve indoor environmental conditions of row-house.