連棟透天厝在台灣非常常見，種類也相當多，本文希望以減少消耗能源的方式，提倡綠色能源建築是可行性的方法，探討提升連棟透天厝自然通風效應，為了驗證連棟透天厝樓梯有益於增強建築物之自然通風效應，分別比較樓梯配置位於建築物中央及樓梯配置位於建築物後面兩種形式之建築物。
PHOENICS 熱流分析軟體Computational Fluid Dynamics(CFD)與風洞實驗數據進行比對，利用風洞實驗(wind tunnel test)驗證 CFD 模擬結果，確保CFD準確性後，再至CFD 建造真實尺寸的連棟透天厝，模擬風速1、2、3、4、5m/s及來風風向為南風、東南風及西南風對連棟透天厝樓梯空間引致自然通風之效能。
足尺CFD 模擬比對後發現樓梯配置位於建築物後面通風效應較高，該建
築吸收較多太陽日照熱傳(solar heat gain)，熱浮力通風較為顯著；風向對建築內部的通風也有者相當大的影響，西南風通風效應最高，造成原因為建築物門的位置。

Residential houses is very common in Taiwan. This thesis hopes to promote the green energy building and reduces energy consumption. To explore the effect of improving the natural ventilation which apply in residential houses. Verifying that the residential houses staircase is good for enhancing the natural ventilation, compared the two types of residential houses. One is the stairs located in the center of the building, the other is the stairs located in the behind of the building.
In this study, the CFD simulation validated with experimental data from wind tunnel tests. Then, create the full-sized model, simulating wind speeds of 1, 2, 3, 4, 5m/s and wind directions of south wind, southeast wind and southwest wind. Discuss the effectiveness of natural ventilation for the stairwells.
After full-scale CFD simulation, it is found that the stairs located in the behind of the building has better natural ventilation effect. Because it absorbs more solar heat gain, and the thermal buoyancy ventilation is more significant. The wind direction also play an important role in here. The effect of the southwesterly wind ventilation is the highest, resulting in the location of the building door.

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