隨著節能減碳與永續發展等環保意識的提升及全球暖化日益嚴重，在這樣的情況下，綠建築儼然成為現代新建築的趨勢。而在建築全生命週期中，以日常使用所產生的碳排為最大宗，日常節能變成為綠建築設計的目標之一，美國LEED綠建築評估標準為目前最廣泛使用之綠建築評估系統，其中提到自然通風得分必須進行室內通風模擬或量測，於初期設計階段無法進行實地量測，模擬成為唯一手段，而進行自然通風模擬過程較為繁瑣、費時，因此，本研究將以住宅建築通風設計為例，透過建築配置、開窗面與方位等作為設計變數，協助設計者省略自然通風模擬步驟，便能了解較為良好的自然通風設計空間。
本研究藉由模擬之結果，透過美國採暖、製冷與空調工程師學會ASHRAE 62.1 2013之換氣率公式換算，評斷在不同的設計變數下，其設計是否符合單一空間最低換氣量之標準。

Along with the uprising awareness of energy-saving and carbon reduction and global warming getting worse and worse. In this kind of situation, the green building concept has become the main trend in the modern architecture industry. In the life cycle of building, daily carbon emission is one the major part in green building design target. LEED (Leadership in Energy and Environmental Design) which is most commonly used in green building design, says that at the begin of the designing phase we can not get any information about natural ventilation (must through real measurement and test). So, simulating becomes the only way to get a natural ventilation score. On the other hand, getting simulation data must cost tons of times. Therefore, the research will focus on the different configuration of rooms, the direction of the house and the arrangement of the windows, using standard house ventilation design code. That’ll make the designer easier to grasp the natural ventilation of the house without experiencing a real situation. By the simulation data and ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers) designing code, determine if the ventilation is qualied in different kinds of room types.

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